This eSeminar was originally presented on January 16 & 23, 2014. You can view the recording online here. The following are the product-related questions and corresponding answers from the eSeminar . Q : When will deflection and reaction results be included into the results on Precede viewer? A : The consolidated Postvue/Precede in v5.6 now includes display of deflected shapes. Display of reactions is planned for a future release. Q : Is the Database included in Offshore Structure Enterprise? A : Yes, the reporting is available in all versions of SACS. Q : How are member offsets handled at meshed joints? A : Members with member offsets are correctly meshed to take into account the offset of the structural shape. Q : Are any further enhancements for the WTG module planned (e.g. Flex5/BHawC integration)? A : We are considering a future addition of Flex5 integration in addition to the current GH Bladed and FAST wind turbine integration. Q : Is there any charge to upgrade from v5.4 to v5.6? A : Any user with a current SELECT subscription can download v5.6. If you are using v5.4 and do not have a current subscription, you should discuss renewal with your Bentley account manager. Q : Is joint mesher in the standard Precede module? A : Yes, the new joint meshing is included in Precede. Q : In the Hull Mesher, it seems that the edges of the plates and stiffeners do not line up, such that the stiffeners cross through the middle of the plates. Is this correct? A : No, they are aligned. Stiffeners which run across plate panels automatically subdivide the panel mesh so that the stiffening member and the pane are subdivided consistently to ensure alignment of nodes. Q : Can the tubular mesher mesh overlapping joints? A : Yes, the tubular mesher can mesh overlapping joints. Q : When will SACS v5.6 be available? A : SACS v5.6 became available in October 2013. Q : Is the joint meshing modeling primarily for fatigue analysis? A : The detailed plate mesh models are useful for calculating stress concentration factors for fatigue, but may also be useful just for checking local stresses or for more accurately modeling joint stiffness for collapse analysis. Q : How do we mesh weld in the model? A : Welds are not taken into account during meshing. The meshing uses plate elements rather than the solids, which would be required to model welds. Q : For the plate meshing, what type of FEA element is used? A : You have a choice between quad and tri elements. Tris are used by default. Q : How do we mesh stiffeners/star plates at non-tubular connection? A : After automatic joint meshing is done, you can manually add stiffening plates to your model. Q : Any impact on lx, ly value of surrounding beam if you mesh plate? A : The section properties of the beams attached to the meshed joint are not changed during meshing. Just the length of the attached members is shortened back to the interface between the beam element and the plate field. Q : Is SACS compatible with PDS/PDMS? A : Yes, there is a PDMS import/export macro available. Q : Do you have any training module of SACS modules? A : Yes, the Bentley Learn server contains modules for self-paced learning of SACS. If you have a current subscription, you can access it from learn.bentley.com. Q : Is it possible to import Tekla models into SACS v5.6? A : Yes, Tekla supports Bentley’s ISM standard for interchange of structural information. See the following for more information. Q : Can we design or check barge? A : The new Hull Mesher module can be used to create a SACS structural model of a barge. Q : Is meshing is possible for grouted tubulars? A : Meshing does not take into account any grouting of tubulars. Q : Can we import cad files in SACS? A : The new Hull Mesher module includes functions for importing DWG and DXF files. Q : Any news on when SACS will be able to analyze floating structures including mooring lines etc.? A : The acquisition of MOSES by Bentley means that MOSES can be used for mooring line analysis. MOSES can import a SACS structural model, and in the future, will be more closely integrated with SACS. Q : What is the major difference between SACS & STAAD? A : STAAD is a general purpose structural program for all types of plant and building structures. SACS is a specialist program for offshore structures, including wind, wave, current load generation, pile/structure interaction, offshore design code checking, and collapse analysis. Q : Can you import data from Genie DNV? A : Yes, a convertor is available to convert Genie .fem files to SACS. Q : How do we get the continuing education credits? How can I get a certificate of attendance of CEU's? A : Bentley Learning Units (BLU), Bentley Institute’s equivalent to Professional Development Hours (PDH), are granted for the live and recorded eSeminar. Within 2-4 weeks of watching the presentation, Learning Units are added to your transcript. To access your transcript, go to www.bentley.com/mylearninghistory. On the "My Learning History" page, there is a detailed how-to guide related to Learning Units and transcripts, in addition to the link to the user’s online transcript. In most states, users can submit their Bentley transcripts for consideration for continuing education credit toward their registration renewals. Q : How do I view this eSeminar again or share it with a colleague? A : This event has been recorded and you can view the recording by clicking here .
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Wiki Page: (2014.01.16/23) What's New in SACS v5.6
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Wiki Page: (2013.01.08) Bentley’s SACS Software for Offshore Structures and Vessels
This eSeminar was originally presented on January 8th, 2013. You can view the recording online in our Video Library (click here). The following are the product-related questions and corresponding answers from the eSeminar . Q : Does Hull Modeler consider SACS model stiffness after sacs model was imported on barge? A : At this stage there is no coupled analysis that takes into account both the stiffness of the barge and the stiffness of the jacket cargo. This is something we are planning for later in 2013. Q : Can multicore analysis be used with Precede in version 5.5 without Wind Turbine license? A : Yes. In v5.5 onwards, multicore analysis of wave response can be used with a SACS Offshore Enterprise license. Q : Is the panel method same as 3D diffraction method? A : Yes, the panel method is a 3D radiation-diffraction method. Q : Does TOW input file generated by motion analysis includes sagging and hogging load cases? A : At this stage sagging and hogging cases are not considered, this will be added in future. Q : We generate RAO for barges in MOSES, and you are saying we can do the same in SACS. What is the difference? A : The generation of RAOs will be similar. The use of Hull Modeller and Motions should allow faster modeling, easier modeling of complex shapes, automated meshing and improved interaction and visualization. Q : Could you provide more info on FEMGV in SACS 5.5? A : The joint meshing shown is now integrated inside Precede, there is no longer any need to use FEMGV externally to Precede. Q : We have SACS Marine license. Do we automatically get the upgrade as per SACS version 5.5? A : The new capabilities are in a new product named SACS Marine Enterprise. Discuss upgrade options from Marine to Marine Enterprise with your Bentley Account Manager. Q : Mesh Generation is done with regular FEM (triangular /Quad elements). Is there any update planned for XFEM methods in analysis? A : We don’t have any plans to support XFEM. This is mostly applied to crack propagation problems. Q : When the new version SACS 5.5 is released? A : SACS 5.5 was released in early January 2013. Q : Can we use the Marine enterprise for Jacket floatation and upending analysis with the derrick barge modeled? A : The SACS Flotation and Launch modules are included in Marine Enterprise and can be used for upending studies. Q : Is there any analysis support for Vortex shedding analysis of flare structures? A : Vortex shedding generates local member loads and is not included in SACS. Q : Can we use the program for jack-up rigs and semis? A : SACS Hull Modeler, Stability and Motions can be used to model jackup hulls and certain types of semi-sub hulls. Further capabilities for these types of floating structures will be added during 2013. Q : Can Hull Modeler be used in SACS static strength check? A : Hull modeler is just for generating the geometry of the vessel hull.We will have additional structural modeling for hulls later in 2013. Q : Have you incorporated any change in upending analysis of jackets with two hooks, compared to versions 5.3 or 5.4? A : There are no major changes in upending in this release. Q : With the joint meshing option in Precede, can we obtain SCFs more accurately? A : Yes,the generated plate mesah can be used to determine SCFs. Q : We currently produce a TOW input file using SEASTATE analysis, in your presentation this TOW input file can be derived in the HULL Modeler module. Will the SEASTATE module capability to produce the TOW input file remain? A : There are no major changes in upending in this release. Q : With the joint meshing option in Precede, can we obtain SCFs more accurately? A : Yes you will still be able to generate TOW files manually or from Seastat. Q : Definition of barge in launch - can the fully defined barge be used? A : We plan to add the use of the 3D barges to launch in future. Q : Is analysis Time Domain or Frequency Domain? A : The panel method uses frequency domain analysis. Results can be converted to time domain for regular or irregular waves for visualization purposes. Q : What is the name of the iPad model viewer on the iTunes App Store? A : If you search iTunes for “Bentley Structural” you will find it. It is named Structural Synchronizer View. Q : How is the new SACS version compared with MOSES software? A : The generation of RAOs will be similar. The use of Hull Modeller and Motions should allow faster modeling, easier modeling of complex shapes, automated meshing and improved interaction and visualization. Q : For FPSO, SACS can do the topside module fatigue analysis. How about the vessel fatigue, especially near topside module foundation area? A : If the foundation part of the structure is included in the SACS model then it can be included in the SACS analysis and fatigue calcs. Q : For Advanced SACS, does it support multiple cores? A : Multi-core analysis is in SACS Offshore Enterprise but not in SACS Offshore Advanced. Q : Are there any improvements in Datagen? A : A completely new Datagen was released with v5.4 which provides significantly improved editing and context sensitive help. Q : Will SACS ever incorporate plate buckling? A : We currently support plate buckling checks to the DNV code. API buckling checks will be added in future. Q : When importing structural models as cargo for stability and motions, does the program import structure loads as well or only modeled structure weights? A : The structural weight only is imported for inclusion in stability load cases. However other load cases are passed through to TOW for inclusion there. Q : How do we learn more about this year’s Be Inspired Award winner and finalists in the Offshore Engineering category? A : Bentley is proud to have received a number of great use cases for this new category. The Offshore finalists and winner were outstanding uses of Bentley products for their offshore projects. Consider entering your innovative project in next year’s competition, which will be announced in Spring 2013! Q : How do we get the continuing education credits? How can I get a certificate of attendance of CEU's? A : Bentley Learning Units (BLU), Bentley Institute’s equivalent to Professional Development Hours (PDH), are granted for the live and recorded eSeminar. Within 2-4 weeks of watching the presentation, Learning Units are added to your transcript. To access your transcript, go to www.bentley.com/mylearninghistory. On the "My Learning History" page, there is a detailed how-to guide related to Learning Units and transcripts, in addition to the link to the user’s online transcript. In most states, users can submit their Bentley transcripts for consideration for continuing education credit toward their registration renewals. Q : How do I view this eSeminar again or share it with a colleague? A : This event along with the live Q&A is available in the Bentley Video Library .
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Wiki Page: (2013.05.21) Bentley - Offshore eSeminar: Loads on Offshore Structures Attendee Questions
This eSeminar was originally presented on May 21st, 2013 You can view the recording online at our BeConnected site. The following are the product-related questions and corresponding answers from the eSeminar. 1. Q: Can SACS export results into dataspreadsheet/excel format instead of text/image? A:Bentley is currently in the process of developing a new reporting application which will allow the user to do this. 2. Q: Is the psi analysis a nonlinear analysis? A: Yes, because the soil load-displacement properties are non-linear. 3. Q: The unity check show a lot of members in red. Does it mean that these members are overstressed? Do they need to be resized? A: Not necessarily, the unity check ranges can be adjusted. 5. Q: Can the Mesh Joint Utility be used for a joint can review? A: No, this is a meshing application only. Joint can review can be conducted in the Postvue module. 6. Q: We did offshore structure project before, however in California there's not much offshore engineering. Is there any sample software for my engineers to learn? A: Currently, demo versions of SACS are not available; however there is online training available on the Bentley LEARN Server . Custom training courses can also be organized on request. 7. Q: Can we do meshing of tubular member in SACS 5.4 without FEMGV module? A: Yes, the Joint Mesh Utility does not use FEMGV. 8. Q: No mention of PERSET loads for Loadout? A: PERSETS introduce fixities in the model, so each loadout case will require a separate model. 9. Q: Is a large strain FE formulation used in the case of the boat impact analyses on the meshed members? A: Geometric and material nonlinearities resulting from large displacements are used for a boat impact on meshed members. 10. Q: Would SACS software be reasonable to design a nearshore coastal pier in breaking wave activity? A: SACS does not currently offer a solution for breaking waves. 12. Q: Can you take skid vibration into account (motors, other moving parts) for topside analysis? A: SACS has a special application for “Engine Vibration” which can be used for this purpose. 13. Q: Can a Sesam model be extracted into SACS? A: Yes, SACS has a SESAM to SACS convertor. 14. Q: In wave loading how do you determine initial crest positions, step size, number of steps, if we are defining in terms of length? A: The idea is to step the entire wave length through the structure. The initial crest position is not that important provided you have a sufficient number of wave steps. 15. Q: What do the calculation output files look like? A: ASCII files are generated. 16. Q: Can pile analysis be done in SACS? A: Yes, SACS is capable of a full pile/soil interaction analysis. 17. Q: I am curious about severe mesh distortions during impact. Please explain. A: This is not a problem provided triangular elements are used. There is a restriction on the twisting of quad elements. 18. Q: How many and which programs are needed to design a complete offshore structure and foundation? A: Minimally, SACS Offshore Structure Enterprise, SACS Pile Structure Analysis, and SACS Fatigue Advanced – Wave Response. 19. Q: Is it mandatory to joint OR member meshing for ship impact analyses? Does meshing take into account the reduction in CS due to local denting? A: The main reason for meshing is to account for local denting and the subsequent reduction in CS. 20. Q: Is Finite Element Mesh auto generated or can it be modified? A: The user has control on the mesh density and the length of members to be meshed. 21. Q: When exporting a SACS model to ANSYS, what all information is transferred? Is it just geometry? A: Currently only its geometry. 22. Q: Does SACS have the ability to model grating, instead of plates? A: Modeling of grating is not possible in SACS. 23. Q: How do you determine hydrodynamic loads caused by seismic events? A: The SACS seismic analysis is able to account for the non-linear fluid damping interaction between the structure and the fluid. 24. Q: Is a particular material type and welding process taken into account for mesh analysis, or are basic assumptions used for general analysis? A: Currently welds are not modeled in SACS. 25. Q: Is there an option to mesh members other than tubes? A: Currently only tubular members are meshed automatically. 26. Q: Does the SACS software provide uplift forces due to waves? A: Vertical particle motion resulting from waves can provide uplift force. 27. Q: For strength analysis, are there code check models checked against AISC, etc.? A: The AISC code check is available for strength analysis. 28. Q: For pile analysis, can we model the soil or apply the soil springs on the pile? A: The SACS PSI module allows for the full modeling of non-linear soils. 29. Q: Can the Mesh Joint Utility be used for a joint can review? A: No, this is purely a meshing utility. 30. Q: What guidelines does SACS use to assist user in establishing mesh sizes and time steps? A: Usually finer meshes and small time steps provide better answers but also take longer to run. 31. Q: Does SACS have a redesign option? A: Redesign options for member/joint strength in addition to fatigue are available in SACS. 32. Q: Can SACS perform design retrofit? And how the strength property reductions are estimated? A: The SACS Collapse module is often used to conduct retrofit design. 33. Q: What design codes does SACS design to? A: SACS has a large array of structural codes available for offshore structural design. 34. Q: So in the future it may be possible to model an FE check on an I-beam coming into a tubular? A:Correct, Bentley is currently in the process of developing this capability. 35. Q: Can you link ship hull modeling and design with topsides - such as FPSO's? A:Currently it is only possible to design topsides for floating structures. However, Bentley is in the process of developing capabilities for hull design. 36. Q: Does SACS have an ability to analyze suction piles, using for example API stability design for cylindrical shells? A: The SACS user defined force-deflection GAP elements can be used to model suction piles. 37. Q: Are ENSOFT INC APILE OR LPILE compatible with SACS? A: No, they are not. 38. Q: Where can I find out more information on the mesh joint utility? A: The SACS Utility manual contains a guide on the joint mesh utility. 39. Q: Does PWHT (post weld heat) effect in any member can be incorporated by applying thermal loads? Does SACS account for reduction in yield strength in such cases? A: Thermal loads cannot be used to reduction in yield stress due to welding. 40. Q: In the wall you showed, is that considered an example of an explosion? A: This is a typical blast wall model. 41. Q: You mentioned export of SACS to ANSYS. Is the same possible with Abaqus? A: SACS does not currently have the ability to export do not have the ability to import or export Abaqus files. 42. Q: Is Bentley planning on releasing some a book on SACS? A: Not a technical publication, but please note that the SACS software comes with full documentation on all SACS modules. 43. Q: Is SACS considered a standalone package or is it to be used in conjunction with other software? A: SACS is a standalone package, but it can work with other Bentley and third party software to expand its’ functionality. 44. Q: Can plate stiffener direction be defined along global instead of local alone? A: Currently the plate stiffener directions can only be described in the plate local axis system. 45. Q: Can SACS increase wave height and current speeds instead of just loads one wave height for the analysis of collapse? A: Currently only a constant wave height and current speed can be applied in Collapse. 46. Q: Can SACS model FPSO's? A: Currently only FPSO topside design is possible. 47. Q: How do we connect members to the meshed plates? A: Members can be connected to meshed members via offsets. 48. Q: How do we learn more about last year’s Be Inspired Award winner and finalists in the Offshore category? A: Bentley is proud to have received a number of great use cases for this new category. The Innovation in Offshore Engineering finalists and winner were outstanding uses of Bentley products for their offshore projects. Consider entering your innovative project in next year’s competition. More information at www.bentley.com/beinspired . Submissions due by July 19, 2013 with winners awarded in October 2013 in London! 49. Q: How do we get the continuing education credits? How can I get a certificate of attendance of CEU's? A: Bentley Learning Units (BLU), Bentley Institute’s equivalent to Professional Development Hours (PDH), are granted for the live and recorded eSeminar. Within 2-4 weeks of watching the presentation, Learning Units are added to your transcript. To access your transcript, go to www.bentley.com/mylearninghistory. On the "My Learning History" page, there is a detailed how-to guide related to Learning Units and transcripts, in addition to the link to the user’s online transcript. In most states, users can submit their Bentley transcripts for consideration for continuing education credit toward their registration renewals. 50. Q: How do I view this eSeminar again or share it with a colleague? A: This event along with the live Q&A were recorded and are available online .
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Wiki Page: (2013.04.18) Bentley – Modeling of Topside Structures eSeminar Attendee Questions
This eSeminar was originally presented on April 18th, 2013 You can view the recording online at our BeConnected site (click here). The following are the product-related questions and corresponding answers from the eSeminar. 1. Q: What is SDNF ? A: Steel Detailing Neutral Format – this is used by a lot of steel detailing programs and is a useful way to transfer models between SACS and these programs. However, you should use ISM if interchanging with Bentley’s ProSteel detailing software. 2. Q: Is the analysis affected if the offset is not considered in the modeling? A: You do need to apply the member offset in Precede or the input file for there to be any effect on the analysis results. If you do not include the offset of members to all be top of steel, depending where the membdoing an area loading some members not within the tolerance will not be loaded and this will affect the results. 3. Q:Does SACS v5.4 allow you to now use the views you have created in Precede to be used in post view? A: Bentley is currently integrating the post-processing functions of Postvue into Precede so that all viewing functions can be shared in future. Yes, if you open your Postvue file in 3D Postvue you can see all the views you had saved in the model. 4. Q: Is it possible to make group for the buckling length? Yes, you can define a Member Group and set the buckling length to apply to the entire group 5. Q: Are there any changes in loading entity? A: Bentley’s next quarterly Offshore eSeminar (July 18, 2013) will focus on loading in SACS, recent changes include enhanced stream function loads. 6. Q Do you arrange training sessions for new SACS users? A: Yes, both online and hands on/in-person training is available. Companies with a SELECT subscription can access self-paced training at the Bentley LEARN server 7. Q: Is the 3D psvdb improved further to include all the capabilities of the legacy psvdb? A: The development team is currently working on making all features in the old Postvue to be available in the 3D Postvue. This should be available in SACS v5.6. 8. Q: What is the minimum hardware requirement for software installation? A: Any modern machine running Windows 7 should run SACS just fine. For larger models, Bentley recommends 8GB or more of RAM. The new 64-bit version of Precede will take advantage of this additional memory. 9. Q: Is it useful to know how to import the SACS modeled structures to STAAD and vice versa? A: ISM can be used to exchange structural models between SACS and STAAD. 10. Q: Can you combining the volumes? A: More than one volume can be combined using the Volumes dialog box. 11. Q: Is there any chance that SACS error messages are detailed clearly? A: Bentley is continuing to improve SACS documentation including documentation of error messages. 12. Q: Is it possible to segment a variable section member that already exists? A: Yes, you can use the Member Property dialog box to specify that a member is tapered and specify the number of segments along the member. 13. Q: Will you be able to see the stress diagrams of the whole structure in Postvue similar to STAAD? A: As Bentley combines Postvue into Precede, we will add additional viewing capabilities including global moment and stress diagrams. You can display color coded stress renderings using Postvue3D. 14. Q: If the member chosen as a reference for member offset is changed, will the other member offsets automatically adjust? A: No, if you change the depth of the reference member, you will need to re-apply the Member Flush command to align to the new depth. 15. Q: Does SACS have a copy of member command like STAAD? A: There is not a Copy Member command in SACS, but Bentley will consider this for the future. If you use the Joint/Translate and Rotate box, you can choose to duplicate joints or members you already have in your model. This will duplicate what you want and you can specify the location. 16. Q: For non-tubular member connect to tubular member, this non-tubular member cannot offset outside of tubular member. Can the new version of SACS do this? A: Yes, member offsets can be applied to any distance including outside of an adjacent member. 17. Q: Can you give an example for PDMS or STAAD to SACS? A: You can use SDNF to transfer data between PDMS and SACS. ISM can be used for STAAD. 18. Q: Is there any way to divide plates by members automatically? A: Not presently, but this will be in a future enhancement to SACS. 19. Q: Is it possible to add a LCSEL for deflection checks only? A: No, it is not. 20. Q: Shouldn’t the matrix decomposition error specify the exact reason? A: It is not always possible to determine the exact cause of a decomposition error, but Bentley will continue to improve error messages. 21. Q: Release labels seem too crowded for big structures. Is there any plan to change it to symbols? A: This is a good suggestion and Bentley will consider this for the future. 22. Q: Sometimes there is an issue in joint co-ordinate. For example when we create a joint at 5.3 it will show 5.299998. Why? A: Round off error for floating point numbers is always possible in any engineering program. 23. Q: We have to do aluminum design with Eurocode 9. Does SACS support this? A: EC9 code checking is not available in SACS. 24. Q: Is it possible to display the member segment length in GUI? A: Yes, turning on the Length labels in the Labeling Options dialog shows a value for each segment of the member. 25. Q: Can a joint can punching check for non-tubular members be included as per EC3? A: Currently this is not in SACS, but Bentley’s software development team will consider it. 26. 39. pnjain@technip.com: Group number currently is 3 digit only, can it be increased to 4-5 digits? It is limited to three characters. Bentley will consider this for future enhancement. 27. Q: What about the Jack up? Can I model it using SACS? A: Yes, SACS has been used to model jackup structures 28. Q: Can AutoCAD bring in .ism.dgn files? A: Yes, AutoCAD can read .dgn files via ProSteel. 29. Q: To model the rectangular deck plate, can we click 4 joint in any order or do we need to follow any specific order? A: When adding plates, you can click on the joints in clockwise or counterclockwise order but the local z coordinates of the plate will point upwards when using counterclockwise order. This is the normal practice. 30. Q: How do we divide a segmented member without disturbing the segmentation? A: When you divide a segmented member, you will need to rename the groups if you do not want the segments on the divided part. 31. Q: Do you have demo DVD? Or demo download? A: Sample cases are installed with SACS system. Demo DVDs are not available. You can view videos of SACS in use on our recorded eSeminars at http://connected.bentley.com or contact Bentley for a live or online demo. 32. Q: Where can I learn more about using the shell and solid elements? A: A future Bentley eSeminar will cover these element types. In the meantime, the Precede user manual has details on modeling with plates and shells. 33. Q: How do I import models from AutoCAD? A: DXF import will be a future enhancement. 34. Q: In general, how do you handle equipment dead weight? A: You can apply skid loads to model the weight of equipment on skids. Footprint, skid load, joint/member concentrated load, etc. 35. Q: What does joint thickness mean? A: The joint thickness is the distance from the edge of the section to the center line. 36. Q: Do you plan on changing the program so that it is not limited by GRUP cards? A: Using GRUP cards adds an unnecessary step to modeling and makes changes time consuming. There are many advantages to using GRUP cards, so Bentley plans to continue using them for now. 37. Q: Do you have implemented ISO 19902 code check 41? A: SACS does now support ISO19902 for code checking of tubular members. 38. Q: Your menus are much more user friendly. Is this feature only in SACS version 5.5? A: Yes, the new ribbon is available in version 5.5 and later. 39. Q: Will it be possible for us to practice from a free sample of student version SACS? A: Later this year SACS will become available under Bentley’s BeCareers academic program. Ask your teaching staff to consider joining this program. More details at www.bentley.com/becareers. 40. Q: CAN SESAM files can be imported? A: No, SESAM import is not supported but our development team can help convert files for you. 41. Q: SACS can export to PDMS, but is there any plan to create the ability to import from PDMS? A: SACS does support PDMS import, see the Import menu. 42. Q: How do you change the orientation of the members? A: Use Member Properties dialog and set the Orientation angle e.g. to 90 degrees 43. Q: What codes does SACS have? A: SACS supports over 30 offshore design codes from API, ISO, Norsok, Europe, etc. 44. Q: I use SACS 5.3 Exe. v81 ver. 5.3.21. Can I import model files from PDMS? A: Yes, PDMS import is available in the Import menu 45. Q: Can I have SACS if I have a license for STAAD? A: No, SACS is a separate Bentley product. 46. Q: What will be the cause of matrix decomposition error while running an analysis? A: There are a number of causes including having a mechanism in your model due to incorrect member releases, having a large difference in stiffnesses between adjacent parts of the structure, and having member or plate structural properties set to zero. 47. Q: I'm a new user of SACS and need training. Do you have a training facility/classroom where I can go for couple of days and get training? A: We offer a range of training options including self-paced online training via the Bentley LEARN server at http://learn.bentley.com, instructor-led online training in your office, and in-person training on-site at your company. Contact Bentley to discuss your needs and options. 48. Q: In the beginning of the eSeminar you duplicated the 700 level deck. The new nodes were still within the 700 series. Is there an easy way to rename the upper deck nodes to the 800 series? A: Change the new joint name to 800 and then duplicate. 49. Q: Can you change units after the model is created? A: Yes, in Precede go to “Save As” and it will give you the option to pick the unit for the model to be saved. 50. Q: Can we distribute winsn area loads on more than 7 joints in new version? A: No, you can have a maximum of 7 distribution joints. 51. Q: Is there an eSeminar available on using the shell elements? A: Not currently, but Bentley hopes to have one in the near future. 52. Q: Are there plans to improve Postvue as you have done with Precede? A: With each release we are integrating more Postvue functions into Precede. 53. Q: Do load cases automatically include the dead weight of the structure? Or is dead weight a single created load condition? A: You do need to define a dead weight load condition 54. Q: I would like the loads labeling rotate/translate when members are rotates/translated. How can I do that? A: In the Translate and Rotate box check off the box that says “Move all skids, pressure, areas, footprints, etc.” 55. Q: How can I do a certified training course in SACS in Europe? A: Bentley regularly delivers training in Europe. Please contact your Bentley account manager to discuss your training needs and options. 56. Q: Is there free watch and learn videos? A: Yes. SACS users can access the Bentley LEARN server at learn.bentley.com. You can also view recorded eSeminars at http://connected.bentley.com 57. Q: When can we expect the Postvue3D to be upgraded? A: With each SACS release, Bentley is integrating more Postvue functions into Precede. 58. Q: Can SACS do analysis under wind load, ice wave load? A: Yes, these are both possible in SACS. 59. Q: Can you export SACS to GeniE the DNV software? A: Yes. SACS is an industry standard and GeniE, like many other programs, can read in SACS models. 60. Q: Is there an eSeminar specifically for gap elements such as modeling friction forces? A: Not at this stage. Bentley will have future eSeminars on transportation which will cover the use of gap elements. 61. Q: Can shell elements be used for sub modeling? A: Yes, you can use shell element but there is no code check for the shell element. 62. Q: How do we learn more about last year’s Be Inspired Award winner and finalists in the Offshore category? A: Bentley is proud to have received a number of great use cases for this new category. The Innovation in Offshore Enginering finalists and winner were outstanding uses of Bentley products for their offshore projects. Consider entering your innovative project in next year’s competition, which will be announced in May 2013 and awarded in October 2013 in London! 63. Q: How do we get the continuing education credits? How can I get a certificate of attendance of CEU's? Bentley Learning Units (BLU), Bentley Institute’s equivalent to Professional Development Hours (PDH), are granted for the live and recorded eSeminar. Within 2-4 weeks of watching the presentation, Learning Units are added to your transcript. To access your transcript, go to www.bentley.com/mylearninghistory. On the "My Learning History" page, there is a detailed how-to guide related to Learning Units and transcripts, in addition to the link to the user’s online transcript. In most states, users can submit their Bentley transcripts for consideration for continuing education credit toward their registration renewals. 64. Q: How do I view this eSeminar again or share it with a colleague? A: This event along with the live Q&A were recorded and it is available online at our BeConnected site .
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Wiki Page: (2012.06.20 / 2012.08.07) Bentley - SACS Executive eSeminar
The SACS Executive eSeminar was hosted for user in June and August. You can view the recording online at our BeConnected site (Click Here). The following are the product-related questions and corresponding answers from the June 20th eSeminar. Q : What is the significant difference between SACS5.3 and SACS5.4? A : You can look in the Executive under the SACS News tab and you will see all the major updates and enhancements. Q : Can we import 3D models from other software into SACS? A : Yes, Precede can import or export with all Integrated Structure Modeling (ISM; http://communities.bentley.com/products/structural/w/structural__wiki/integrated-structural-modeling-home.aspx ) compatible solutions like Revit, Tekla, Dlubal, RAM, STAAD. We also can import an sdnf or FEMSYS file. Q : Any graphic output for the example? A : Yes. After running the bladed file it created a model file that we can open in Precede. Q : Is there going to be an option to automatically check in network licenses? A : Yes. If you are in automatic mode it will automically check in or checkout the license when you are in or not in use. If in manual mode it will check out the license chosen for two days unless you manually check it back in. These options can be found under the SACS License Explorer tab in the executive. Q : What is ISM? A : Integrated Structural Modeler. (ISM; http://communities.bentley.com/products/structural/w/structural__wiki/integrated-structural-modeling-home.aspx ) Q : Is it possible to import from STAAD/Ansys files? A : 1. User can export STAAD model into ISM, SACS can import the ISM file. 2. SACS has a convertor which can be used to convert an ANSYS model into a SACS model. Please note that only the structure itself can be converted between STAAD/ANSYS and SACS. Q : Can we convert Pro-E files to SACS? A : No Q : Can I import from Xsteel or PDS? A : If the model can be put into an SDNF file or ISM we can import it. Otherwise we cannot import it. Q : Can a PDMS model be imported into SACS? A : If the model can be put into an SDNF file or ISM we can import it. Otherwise we cannot import it. Precede can export to PDMS. Q : Can PDMS model be imported into SACS? A : Yes. In Precede you can choose Import-PDMS. Q : In the demo folder there are different files types such as ldf. demo 02, pile.demo02, seainp.demo2, sacinp.demo02. Is there's a way I can find out what all of those names mean? (ex. ldf, pile, sacinp, saclst, etc.) A : In the Executive under the SACS System Setting you can click on the Program Labels. There is will give the labels for each program name. See below: The following are the product-related questions and corresponding answers from the August 7th eSeminar. Q : What design codes are supported in this software? A : SACS supports API, API-LRFD, AISC, AISC-LRFD, NPD, DnV, Eurocode 3, ISO19902, BS and Danish codes. Q : I'm new to SACS and I want to know how do we export model to other tools like PDMS?ow do you apply the wind load? A : SACS supports many structural export formats including DXF, ISM and SDNF. SDNF would most likely be best for import to PDMS. Q : Is SACS 5.4 capable of using Multiple Response Spectra ( e.g., Wind & Wave together) in a time-history analysis? A : Yes. In the Analysis generator you can create an Analysis Category of Dynamic and then choose an Analysis Class of Time History Wave, Wind, Force. Q : Any plans to include AS4100, AS3990 in supported design codes? A : We have added support for the Australian AS1170 wind code. Design code support for AS4100 is under consideration for the future depending on user demand. Q : Can we change any section properties in Line assistant window itself? A : Yes, if you edit a SECT section line, you can override the section properties. Q : Precede manual is not found? A : The Precede manual can be loaded from the manuals tab in the Executive. Q : How do we give input to wind induced fatigue with Spectra? A : Enter a range of wind speeds and load cases and stresses for each will be generated. Q : Do we need to generate transfer function for wind induced fatigue also? A : The user inputs a range of wind speeds, SACS calculates the Weibull distribution automatically. Q : We just completed a design of a flare tower constructed with tubular members using DNV for fatigue check. Is SACS be able to do this? A : Yes. This is just the kind of structure that SACS is commonly used for. Q : More specifically, the current fatigue analysis is based on hot spot stress with stress concentration. can SACS considered this? A : Yes. Q : Does this version include, Mooring line analysis, for offshore vessels? A : No. Later this year we will debut the first of our solutions for floating systems. Next year we plan to include mooring capabilities in that. Q : If we calculate mooring line stiffness separately, how can we apply them to SACS model? A : As a user defined external load to the SACS model. Q : Are you planning to include joint connection design ( tubular section to rolled section) for topside design? A : SACS currently has support for local design of tubular to tubular connection. We do plan to include non-tubular to tubular in the future. Q : How does SACS calculate allowable STRENGTH UC for tubular joints? A : Analysis results for each brace at the joint are combined as a percentage of K, X or T&Y joint. For Strength UC, the load part will be 50% of the buckling strength for compression or the yield strength for tension. The capacities will be calculated using the same equations as Load UC except we set the safety factor FS=1.0 in this case. Click here for top of page
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Wiki Page: (2012.07.18 / 2012.09.11) Bentley - SACS Precede Modeling eSeminar
The SACS Executive eSeminar was hosted for users in July and September. You can view the recording online in the Bentley Video Library ( Click Here ). The following are the product-related questions and corresponding answers from the eSeminar. Q : What's the difference between adding a weight and adding a load? A : For a static analysis it is the same thing. Using loads gives a force in the Z direction only where as a weight would be in all three directions. Using a weight would be beneficial with other analysis, for example a transportation analysis where the structure is turned on its side or if you will use the model for a dynamic analysis. Q : Does Seastate generate a dead load? A : You can add the dead weight through the seastate load generation feature in precede. Q : How do you apply the wind load? A : A wind load is defined through the seastate load generation box in precede. You would check off the wind box and then input the information you are given for the wind. This load is applied to the structure for the degree you specify. Q : How should we create and define the property for the piles? A : The piles are created when you use the structural definition wizard. The property is to be defined through the Property manage box in precede. Q : What’s the A/B release? A : This is the member end releases at the beginning or end of the member. Q : Can you define soil structure interaction (stiffness) for the foundation elements? A : Yes, through a PSI file, not in Precede. Q : Is it possible to create duplicated beams? A : You can have the different members with the same group name and same member properties. Also, you can have members with different group names that are the same member type with the same properties. Q : How do you input current speed profile over water depth? A : You specify the profile in the seastate load generation box. See picture below: Q : Are the piles connected at the intermediate node points? A : Yes, at every joint that ends in “P” is a joint to a pile member. The Piles are divided at the same location as the Jacket Legs. Q : Should the Pile and Legs be created as 2 members? A : Yes, the leg will be one member and the pile will be one member if it is un-grouted. These members will be at the same location and will display on top of each other. If the leg is grouted it will only display one member instead of two. Q : How do you model the connection between conductors and the deck? A : You will connect the conductor to the conductor framing using dummy members. Q : Can you show how space load applied to node. Basically how does it calculate the load? A : The load is distributed out to the joints selected. It gets distributed depending on the distance from the load to the joint (like rigid connection between the load point and the distributed joints). Q : How do you define member offsets? A : There is a member offset option which you could use. Also if you select member- details/modify and select a member you can change the offset through this box. Using Joint- Automatic Design, precede can automatically calculate the brace offsets to the outside of the cords. Q : What depth below the mudline is normally assumed to be fully fixed….ex. clay soil? A : Precede doesn’t do anything regarding soil and pile. This work is done using single pile program. Q : How is self-weight generated? A : All the members input have a density. Precede will then take the amount of steel for each member and multiply that by the density and give the structural self-weight. Q : How many codes are covered in sacs? i.e. API, NORSOK, etc? A : Please open Precede, go to Options/Analysis, all included codes are listed for Code Check Option. Q : Should I put fixities like 222000 in every joint as in the samples? A : For a model created for a static analysis you would not use that. This type of fixity is used for dynamic analysis. It is restrained degrees of freedom. Q : How do we analyze local stresses at the joint assembly? A : After you run the static analysis you can look at the stresses. Q : Could you show me how to define boundary conditions (i.e all fixed, hinged)? A : If you use the structural wizard it will automatically put the fixities at the bottom of the legs as well as the bottom of the conductors. To define fixities you can go to joint/fixity and input it through there. Q : Can you show how equipment load applied to node. Basically how it calculates? A : A skid load is applied to the member as a concentrated load. The skid beams that cross the deck members is the location when the load will be applied. The load is distributed to these points depending on where the load is located. The following are the product-related questions and corresponding answers from the September 11th eSeminar. Q : Why you did not model wish-bone for pile and leg connection? A : Time did not permit me to show the wishbone modelling but you can add a wishbone between the leg and pile. Use the Wishbone command from the Member menu. Q : I saw you have a card where you can select master and slave? May I know what is this for and how is this affect the analysis please? A : This allows you to simulate the in-plane rigidity of a planar part of the structure. One example would be a deck stiffened by deck plate. If you don’t model the deck plates, the master-slave will ensure all the joints on the deck move as a rigid body and can also improve performance in dynamic analysis. Q : Will the master and slave definition affect the design if we don't define this? A : If the deck plates are not modelled and transverse loads are applied which cause the deck members to deflect, then these deflections will not actually occur in practise. Using the master-slave constraint will give a better result. Q : Where and when should we use Gap elements? A : Gap elements are used to simulate tension or compression only elements or to simulate friction. A common example would be the support for a jacket on a barge which only provide upwards support but can lift off if upwards force is applied. Q : How do we model a Joint Can? A : The thicker portion at the ends of a member which form the joint can should be defined as segments within the member. Give the end segments larger. Q : Is there any option to define offsets with single command? A : Yes. The Offsets command from the Member menu allows you to automatically specify the offset to align top or bottom of steel of adjacent members. You can also define a distance relative to these locations.
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Wiki Page: (2013.07.18 / 2013.07.25) Structural eSeminar: SACS Offshore Structural Analysis Methods
This eSeminar was originally presented on July 25th, 2013. The following are the product-related questions and corresponding answers from the eSeminar. 1. Q : How can I load Barge from library and use it? A: With new SACS Marine Enterprise package the barge library is available through the following: C:\Users\Public\Public Documents\SACS\SACS5.5\Vessel Library. 2. Q: How did you manage to see the pile geometry? A: You can view the pile geometry through Precede via the File/Import/PSI Input File. 3. Q: How do you get Line Assist window for Data Gen file ? A: With the new data generator in the SACS 5.5 release, it should automatically appear in the window on the RHS once you click on any line in the input file. 4. Q: Where are the earthquake time histories applied? At the top of the piles? A: A seismic analysis is a base driven analysis and therefore the time histories are applied at the bottom of the jacket structure. 5. Q: Will all these analyses be able to combined with AutoPIPE model and analysis? A: Bentley is hoping to build an interface to AutoPIPE in the near future for pipe loads to the piping support structure in SACS and later on to pass back load combinations to AutoPIPE for pipe design. 6. Q: Is Line Assist a new feature, and if so, where can we get the latest version of SACS? A: Yes, download SACS 5.5 from the Bentley Server. 7. Q: Can you analyze a large dropped object impacting more than one joint? A: Yes, with the quasi-static approach this is possible, simply refer to the dropped object load case and omit the joint names. For the dynamic approach, this is currently not possible, however, one can use a spreader structure with appropriate end releases and stiffness’s to spread the loads. 8. Q: How were the dynamic results from earthquake time history analyses combined with static gravity results? A: The SACS Combine module can be used to combine the static and dynamic load results. 9. Q:: Does SACS do an underwater dropped object analysis? A: Yes, by accounting for the damping/buoyancy/viscosity effects. 10. Q: If new to SACS, is there any step by step example or manual available? A: The SACS Manuals come with worked examples. Sample and Demo Files are also available with the SACS software. 11. Q: Do we always have to mesh x brace connection for impact analysis in collapse? A: You should mesh any type of a brace for a joint impact to account for local deformation. 12. Q: Is there a trial version for SACS? A: SACS is available for evaluation purpose by request. 13. Q: Can we do the global analysis for jack up rigs? Even fatigue? A: Global analysis for Jack Up rig legs is possible with Fatigue. 14. Q: Is it possible to use the dynamic analysis to analyze lifting of heavy structures offshore? More specifically, heavy lifitng on a vessel. A: Vessel Motion study with inertial loads on the lift structure is possible for various lift conditions. 15. Q: When I run any SACS model in SACS V5.3 and then in V5.4 the results are different. Do you know why? A: The results may be different to the following reasons: Improvements in the analysis methodology, bug fixes, new compilers. The latter is very important of iterative analysis types. Please contact Bentley tech support to evaluate your situation further. 16. Q: Is it possible to convert hull from Hull modeler to Launch analysis? A: Currently there is no direct way to enter the hull geometry from the Hull Modeler to the Launch Program. 17. Q: Can I use SACS for Splash Zone analysis? I need the crane boom acceleration, wave and current loads... A: SACS currently does not have a capability to conduct a wave slam/slap analysis. 18. Q: Are the piles and pile-soil required to be linearized? A: This is only required for a Modal analysis. This is not necessary for a regular PSI or a wave response analysis. 19. Q: Is there a publication available for SACS learners containing step by step tutorials for various types of analyses? A: The SACS software comes with a whole variety of Demos and Samples for different analysis types. 20. Q: Can we make the LOAD card to act like a WEIGHT card which can be later used for acceleration in global x and y direction? A: For dynamic analysis given load conditions can be converted to mass by using the load case select line and using the dynamic option. 21. Q: Are the models and examples that you used available anywhere if we want to review them later? A: Our presenter can make them available by request. Please email him directly at: Parvinder.Jhita@Bentley.com. 22. Q: Is there a way to show piles in precede (SACS version 5.3)? A: Check the File/Import menu to see if the PSI import feature is available. 23. Q: Can you put flow charts like you had in you presentation in the manual? A: Yes this is possible, thank you for the feedback. Bentley will add this as an important upgrade to the manuals. 24. Q: Can the earthquake motions be input at the far end of the pile spring? Or do motions have to be input at the pile top? A: This is a base driven analysis and therefore the motions are input at the bottom of the jacket structure. 25. Q: I've heard that STAAD.offshore will no longer be supported now that SACS is available through Bentley. Is this true and what is the future of using STAAD for offshore analysis such as transportation? A: Yes, it is true that STAAD.offshore will not be developed any further as we now offer the SACS solution. The SACS software is available for offshore transportation analysis. 26. Q: How do we learn more about last year’s Be Inspired Award winner and finalists in the Offshore category? A: Bentley is proud to have received a number of great use cases for this new category. The Innovation in Offshore Enginering finalists and winner were outstanding uses of Bentley products for their offshore projects. Consider attending the 2013 event in London this October. More information at www.bentley.com/beinspired. And keep your project in mind for 2014! 27. Q: How do we get the continuing education credits? How can I get a certificate of attendance of CEU's? A: Bentley Learning Units (BLU), Bentley Institute’s equivalent to Professional Development Hours (PDH), are granted for the live and recorded eSeminar. Within 2-4 weeks of watching the presentation, Learning Units are added to your transcript. To access your transcript, go to www.bentley.com/mylearninghistory. On the "My Learning History" page, there is a detailed how-to guide related to Learning Units and transcripts, in addition to the link to the user’s online transcript. In most states, users can submit their Bentley transcripts for consideration for continuing education credit toward their registration renewals.
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Wiki Page: (2012.08.22) Bentley - SACS Linear Analysis with PSI eSeminar
This eSeminar was originally presented on August 22nd, 2012. You can view the recording online in the Bentley Video Library ( Click Here ). The following are the product-related questions and corresponding answers from the eSeminar. Q : Does the conductor have a pile as simulated in presentation? A : Yes, SACS treats conductors the same as piles . Q : Are moments and deflections in pile below the mudline? A : Yes, PSI can generate those curves. Q : Can a single pile with the reactions at the pile head be analyzed without the jacket? A : Yes, using the single pile 3D program. Q : I have not seen how SCOUR effect have been taken of in the psi input file. A : PSI has a SCOUR card for users to input scour. This sample doesn’t have it. Q : Do the T-Z Values, Bearing, and Lateral have a certain pattern? (I noticed that the curves were linear up to a point and then constant). I have seen them having peaks, and was told that those peaks cause convergence problems? A : Those curves can have peaks. Sometime peaks could cause convergence problems but not always. Q : Does the plots have moment and shear plots? A : Yes, see PLTRQ line. Q : Can the pile below the mudline be viewed? A : Yes, open the model in precede and then go to File/Import/PSI Input File and choose your psi input file. Then you will see the piles displayed below the mudline. Q : What determines the pile penetration depth for the conductor? A : T he conductor needs enough penetration to support the vertical loads applied on it. It also needs enough penetration to protect the inside casings. Q : Can you explain what the T factors were in the definition of the T-Z, P-Y data? the 0.0124, 0.00015, etc.? A : PSI has a required unit for the input of T-Z and P-Y values. The T-Z units/P-Y units from the soil report may not be the same as the PSI requirements. Users can use factors (T- Z factors or P-Y factors) to convert them into the required units in the PSI input file. Q : Is it possible to obtain a global curve Bottom shear vs. Lateral deflection? A : You can get a curve of Lateral load vs. Lateral deflection in Single Pile 3D. Q : Can the deflections and stresses below the mudline be viewed? A : No, SACS is not able to view the analysis results for piles below mudline. Q : Does the pilehead fixity for the conductors generated by SACS imply that it has piles connected to them? A : Yes. Q : Is it true that you cannot see the recordings unless you registered before they happened? How do we view the recorded eSeminar? A : No. You need to be registered, but you can still register after the eSeminar has taken place. Go to the SACS eSeminar web page and choose to “View OnDemand.” Once you log in, you will have the option to “Register Now” in the upper right sidebar. Once you are registered, you can view the recorded seminar.
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Wiki Page: (2012.11.27) Bentley- Analysis and Design of Fixed and Floating Offshore Structures eSeminar
This eSeminar was originally presented on Nov. 27th, 2012. You can view the recording online in the Bentley Video Library ( Click Here ). The following are the product-related questions and corresponding answers from the eSeminar . Q : Why is the bottom bracing pattern is different than others? A : You may have a mudmat at the bottom of the jacket in which would be around the four corners. An X brace would not work for that. Q : Does the program calculate the self-weight of the structure? A : Yes, it will calculate the self-weight of the structure. You can view the self-weigh in precede. Q : Is that a new precede version? A : Yes, it will be SACS version 5.5 which will be available very soon.that. Q : How can we do actually a Push-over Analysis in SACS? A : The SACS Collapse module is capable of doing this. Q : Is Push-over analysis is compulsory required for this very rigid/stiff offshore jacket structure? A : It depends. If it is an existing structure then the assessment initiators may force a pushover analysis. In any case, the structure may be stiff but the foundation may be weak. Q : How we can decide the size of the jacket leg? A : You can look at a similar design in the area. Q : We can see different types of bracing connections, is there any particular method to select type of bracing connections? A : Different bracing is possible; it depends upon the amount of redundancy required for the structure. Q : Which method of analysis is needed for FPSO, Barge structures? A : SACS does not design the actual hull of the vessel, only TOPSIDE design for FPSO’s and Transportation analysis using barges. Q : Does the analysis consider P-Delta effects (global and local)? A : P-Delta effects can be included in both static and dynamic analysis. Q : Can SACS check fatigue strength for w-shapes and their connections? A : Yes, provided users supply their own SCF’s. Q : Can you view the wave loads applied to the structures? A : Yes, it is possible to do this. The SEASTATE module will generate an OCI file which will contain both the structure and the generated wave loads on the structure. This file can be opened in Precede to view the loading. Q : With SACS version 5.5, what export options are available? A : Precede will export to PDMS and SDNF formats. But the link to ISM allows the user to link to other Bentley products in addition to products such as TEKLA, Revit, and AutoCAD. Q : Does SACS perform mooring analysis? A : Currently Mooring analysis is not possible. Q : Are the elements used to model the deck plate meshed at runtime? The concern here is the transfer of area loads applied to the plate element to the supporting members. A : Deck plate elements are not automatically meshed at run time. Users have to refine the model before a run. Q : How much is SACS basic module? A : Please contact our support center for this information. http://selectservices.bentley.com/en-US/ Q : Is there a trial version available and online training? A : SACS does not have a trial version. There are online resources available for self-training: http://connected.bentley.com/BrowseLive.aspx?BrowseType=0/ and http://learn.bentley.com/app/Public/ViewLearningPathWithMasterCourseExpanded?lpId=100334&mcId=100429/ Q : Does SACS perform passing vessel analysis? A : Currently multi-body analysis is not possible. Q : Will Rhino upload be available for other stuctures besides hull forms? A : Currently, Rhino compatibility is only possible with the Hull module. Q : Can you input load histogram for fatigue? A : If you mean scatter diagrams, then yes, this is possible with the Fatigue module. Q : Are there any validation of dynamic analysis is available on Bentley’s website? A : There are no validation examples. However, the software comes with Demo’s and Sample cases. Q : How does SACS handle torsion? I read in the manuals that SACS calculates torsion and adds it to the shear stress. In the post processing output files, when we see "Shear Stress,” does that include the torsion values? I know in STAAD, using Canadian code, torsion is not checked. How can I verify torsion is checked? A : The bending stress from Torsion in included in the weak axis bending component for the flange sections. Q : Does SACS perform pile driving analysis? A : SACS does not have Pile drivability analysis. Q : Is there a training center where I can learn more about fixed and floating offshore platforms for those interested to venture in this field of profession? A : You may want to enquire which colleges offer such courses. Q : Do you just model the members using frame model? Can truss model be used for some members? A : Member end releases can be used to model truss frames. Q : Does SACS integrates with AutoPIPE's model? A : Currently there is no link to AutoPIPE. However this is something Bentley is very interested in doing. Q : Is the P-Delta calcs based on revising the stiffeness matrix or trial-and-error? A : The stiffness matrix is modified for the P-Delta analysis. Q : How does the program address joint design (punching, stub ends, etc.)? A : The SACS Joint Can module has many different code check criteria for Joint Design. e.g. API, ISO, NORSOK, etc.. Q : Does it check the combination of column stresses and brace imposed stresses at the joints? A : The joint design module (JOINT CAN) takes this into account. Q : By the use of the Translator or converter "STAAD.Pro to SACS", is possible to translate STAAD geometry, beam and plate properties to its equivalent SACS representation. Is it possible the inverse (SACS to STAAD.Pro)? A : A two way transfer of information between SACS and STAAD is possible via ISM. Q : Can SACS simulate an Impact analysis? A : Yes, both statically and dynamically and also account for nonlinear geometric and material behavior. Q : What happened to the 3D PDF feature available in some older versions? A : It is still available but through ISM. Q : Is SACS compatable with STAAD.Pro? A : Yes, via ISM. Q : How accurate is the conversion between STAAD to SACS? Is there much in the way of extra handling required? A : Loads are not transferred. Also, STAAD has a large library of sections used in the civil market and not in the offshore industry. These cannot be translated. Q : Can users modify input file using text editor? A : SACS has its own intelligent text editor “Datagen” which can recognize the content of the input file. Otherwise any text editor will work provided it doesn’t leave control characters in the input. Q : Can SACS generate plate meshes automatically? A : Yes, this is possible. Obviously for a complex geometry a FE mesh generator such as FEMGV can be used. SACS can import meshed surfaces from FEMGV. Q : Can we create row lines (A,B,C or 1,2,3) manually? A : Currently, this is only possible via the Structure Definition Wizard. Q : Is fatigue analysis done in frequency domain? A : Both frequency and time domain analysis are possible. Q : How about validation for EQKLOD line? A : We do not have any validation examples available at this moment. However we will gladly look into the problem if you there is a discrepancy with the method. Q : Can SACS do model generation for jackets only? A : Currently, the structure wizard only handles jacket types of structure. However, there are features under the joint meshing which can probably handle other configurations such as decks, spherical, and cylindrical structures. Q : How do you decide the appropriate number of modes for the dynamic analysis? A : The results from a modal analysis will include a report on mass cumulative factors. Enough number of modes should be used so the cumulative mass is over 95% in case it’s needed by any response analysis. Depending on the model, this is not always possible, but it’s a good indicator of how many number of modes should be used. Q : Can your sea state be defined by Jonswap or Ochi-Hubble Spectrum? A : Yes, including a user defined spectrum. Q : After analysis and design, how easy is it to transfer to detail drawings for fabrication and construction? A : The ISM interface provides links to numerous CAD packages. Q : Can you explain the integration of the GH Bladed software for offshore wind turbine structures? A : The GH Bladed software outputs a special file for SACS which can be used to automate the fatigue and strength analysis. The analysis process is speeded up using the multi-core functionality of the PC. Q : Will SACS offer in the future unbraced lengths for top flange or bottom flange for W Members? A : The unbraced length can be entered on the GRUP line. Q : How does the program address vessel bending for FPSOs? A : The new SACS Stability module allows for a longitudinal hull strength analysis which takes into account both the hogging and sagging of the hull structure. Q : Has EDI systems (originator of SACS) been acquired by Bentley? A : The SACS software was acquired by Bentley Systems in March 2012. Q : Are there specific checks within SACS to avoid the onset of VIV of a tubular member (wind induced)? A : Currently, there is no check for vortex induced vibration. Q : Does SACS adopt section wizard? A : The section wizard functionality is not currently available in SACS. However, Bentley intends to add this in the future. Q : How accurate are plate & shell fatigue checks? Can we get hot spot stress at points of interest? A : The plate and fatigue checks are dependent upon the mesh density in the crucial areas of stress concentrations. Obviously a finer mesh in these areas will yield a better representation of the hot spot stress. Q : Can SACS perform non-linear time history analysis? A : The equivalent static incremental loads from a time history analysis can be passed through the SACS Collapse module to check for an Elasto-plastic response. Q : How do we learn more about this year’s Be Inspired Award winner and finalists in the Offshore Engineering category? A : Bentley is proud to have received a number of great use cases for this new category. The Offshore finalists and winner were outstanding uses of Bentley products for their offshore projects. Consider entering your innovative project in next year’s competition, which will be announced in Spring 2013! Q : How do we get the continuing education credits? How can I get a certificate of attendance of CEU's? A : Bentley Learning Units (BLU), Bentley Institute’s equivalent to Professional Development Hours (PDH), are granted for the live and recorded eSeminar. Within 2-4 weeks of watching the presentation, Learning Units are added to your transcript. To access your transcript, go to www.bentley.com/mylearninghistory. On the "My Learning History" page, there is a detailed how-to guide related to Learning Units and transcripts, in addition to the link to the user’s online transcript. In most states, users can submit their Bentley transcripts for consideration for continuing education credit toward their registration renewals. Q : How do I view this eSeminar again or share it with a colleague? A : This event along with the live Q&A were recorded and it is available online at our BeConnected site . Click here for top of page
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Wiki Page: DGN Index Service - How to set up
Applies To Product(s): MicroStation Version(s): 08.11.09.459 Environment: Windows Area: Project Explorer Subarea: DGN Indexing Original Author: Marc Thomas, Bentley Technical Support Group Overview The DGN Index Service is installed automatically with MicroStation based applications including Navigator, AECOsim Building Designer and PowerDraft. It is a Windows service set by default to start manually. It is designed to work with Project Explorer to maintain an index of the data within your projects. When Project Explorer is used without DGN Indexer the cache that stores the lists of files and associated data in the project Explorer tree views have to be rebuilt for each MicroStation session, this is known as harvesting. For small projects this may not be intrusive but as projects build up the time taken by harvesting becomes significant. Once started the DGN Index Service will take over from Project Explorer harvesting. It will index the file types chosen in the selected locations, MicroStation will use this index instead of harvesting for immediate display of Project Explorer tree views. The index is updated automatically as long as the service is running. A user can also initiate a rescan in the DgnIndexer Options dialog. Files can be indexed locally and on network locations by remote instances of the DGN Index Service. To see how this works let’s look at the local setup. Open the DgnIndexer Options dialog: The service startup is set to manual by default so it will not run until you change this. However, first go to the Locations tab and tick the boxes for any locations that you would like to index: Sub-folders will be included, selections can be made at any point in the folder trees. Look at the File Types tab: These are the defaults, add other files extensions as required. You can enter DGN and DWG related file extensions such as DGN, DGNLib, DWG, DXF, RDL, and CEL. Go back to the Index Settings tab, Change service startup from manual to Automatic. Click Start. The status will change to display the number of items indexed and the number currently being indexed. Networked Data Do not Start he DGN Index Service on client PCs. On the Windows server that stores the network shares install: The DGN Index Service - DgnIndexer.msi Bentley DGN Reader for Windows 7- DgnIFilterSetupx64.msi Both MSI files can be extracted from the MicroStation installation download with a zip archive utility. (Bentley DGN Reader for Windows 7 provides interactive preview functions in the Windows Explorer preview panel, Windows thumbnails and text search within DGN files.) Once installed. modify and start the DGN Index Service settings as described above. If you are using Project Configuration Files (PCF) to correctly connect your client PCs to their project data the PCF should have defined MS_DEF to point to the project data files. MS_DEF will direct MicroStation to look at the index on the correct server. The links in Project Explorer will then use the MS_DEF values to populate the project Explorer tree. Data stored on non-windows shares, Linux/Samba servers for instance, are not currently supported. Links You may want to alter the links provided by the delivered Link Set. More about Project Explorer in Mark Penn’s Project Explorer 101 . Project Explorer allows you to create links to the specified contents of the file types listed below: DGN, DWG, DXF Design, Drawing, and Sheet Models References Saved Views Drawing Titles Link set URL Key-in (supported by DGN file type only) Microsoft Word Document (DOC, DOCX) Microsoft Heading Styles User-defined Heading Styles Bookmarks Microsoft Excel Workbook (XLS, XLSX) Individual Excel Worksheets Adobe PDF Bookmarks (the “go to a page view” type) Folder Files in the folder Print Organizer Print Set (PSET) Print definitions
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Wiki Page: STAAD.building
Recently, Bentley Systems, Incorporated, the global leader dedicated to providing architects, engineers, constructors, and owner-operators with comprehensive architecture and engineering software solutions for sustaining infrastructure, partnered with S-Cube Futuretech Pvt. Ltd. to provide the most comprehensive concrete building design workflow for the Indian market. This integrated solution is called STAAD.building and it addresses the entire workflow related to the design of reinforced concrete buildings; including conceptual layout and framing, advanced analysis, design and detailing and finally, production of site ready drawings along with bill-of-quantity reports. STAAD.building combines the power of STAAD.Pro’s analytical engine with the purpose-built building modelling, design and drawing solutions from S-Cube. It extends [[STAAD.Pro]], the world's #1 structural analysis and design software, to accommodate the intricate needs of drawings and design of reinforced concrete structures as per Indian standards. The key differentiator is the workflow. Unlike any other software in the market, it helps engineers to conceptualize the engineering model by suggesting preliminary member sizes based on the framing layout, loading conditions, and geographical location. The model is generated in a physical environment to help you generate an analytical model automatically behind the scenes but also offers you the power of STAAD.Pro’s analytical modeling environment to optimize building configurations. It combines the power of a physical modeling system along with an analytical text editor to offer the best possible tools to address every possible need of a building designer. This is the only solution in the market which completes the workflow by offering an interactive physical member design environment along with complete detailing and drawing generation. Early adopters indicated that drawings are of very high quality and meet the intricate requirements of site-ready drawings. Another recent addition is Bar Bending Schedule (BBS) creation. After detailing structural members, a detailed BBS can be generated in compliance with the Indian detailing standards. STAAD.building is a bundle package of four products: STAAD.Pro is the leading structural analysis and design program ( Learn more here ) STAAD RCDC is the detail reinforced concrete design and detailing program which design structural components like Beam, column, slab, shear wall etc. and automatically produce drawings and bill of materials STAAD Planwin is a building modeling program which provides physical building modeling environment to create structural frames and components STAAD Foundation Advanced which provides the foundation design of common and complex types of foundations along with drawings and step by step hand calculation. ( Learn more here ) STAAD Planwin Some of the features of STAAD Planwin are: Seamless integration with STAAD.Pro Import architectural centre-line (DXF model) Detects beams and columns Align / locate members Add floor loads and wall loads View load distribution element-wise Check modelling error at plan level Size beams and columns for vertical loads Define shear walls Generate wind loading Generate earth quake loading Export 2D and 3D CAD drawings Generate accurate 3D analysis model with: Member offsets Releases Beta angles Pier definitions Joint and member loads Wind and EQ load, etc. For more information on STAAD Planwin, please visit STAAD RCDC Some of the highlights of STAAD RCDC are: General Seamless integration with STAAD.Pro Compliance to latest Indian design standards Auto Detection of design continuum Facility to group members across levels and plan Detailing Optimized and practical detailing Interactive detailing interface Control of all detailing parameters Drawing: Organized site ready drawings in DXF format Elevations Cross sections In-plan detailing Layout Drawings Text Schedules Documentation Detailed design calculation report Design Summary Failure Diagnostics Member properties changed report For more information on STAAD RCDC, please visit
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Wiki Page: Error message when opening up FlowMaster
Applies To Product(s): Bentley FlowMaster Version(s): 08.11.01.03 Environment: N/A Area: Modeling Subarea: Original Author: Akshaya Niraula , Bentley Technical Support Group Problem Description When opening Flowmaster V8i SelectSeries 1, the following message is generated: --------------------------- AccessViolationException Details --------------------------- Press Ctrl-C to copy details to clipboard:System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. at DAO.Workspace.Close(Workspace* ) at CDaoDatabase.Close(CDaoDatabase* ) at Haestad.Domain.DaoInterop.DaoDatabase.Close() at Haestad.Domain.LibraryObjects.JetAppSettings.Dispose(Boolean disposing) at Haestad.Domain.LibraryObjects.JetAppSettings.Finalize() --------------------------- OK --------------------------- Reason This issue is related to a corruption in the engineering libraries. Steps to Resolve Option 1 Simpler Way 1) Navigate to this location: Windows XP: C:\Documents and Settings\ user name \Application Data\Bentley\ Windows 7: C:\Users\ user name \AppData\Roaming\Bentley\ 2) Rename the "EngineeringLibraries" folder to something different like "EngineeringLibraries_old". 3) Open up the FlowMaster Option 2 Cleaner Way 1) Navigate to this location: Windows XP: C:\Documents and Settings\ user name \Application Data\Bentley\EngineeringLibraries\ Windows 7: C:\Users\ user name \AppData\Roaming\Bentley\EngineeringLibraries\ 2) Delete the EngineeringLibraries.mdb and any bak or backup files for this database file. 3) Open up the FlowMaster If the error is still generated, replace the existing engineeringlibraries.mdb file with one found at the following ftp link: ftp://ftp.bentley.com/pub/tools/utilities/Haestad/Utilities/EngLib/EngineeringLibraries.mdb
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Wiki Page: STAAD.pro Create Material Macro
Applies To Product(s): STAAD.Pro Version(s): 20.07.10.41 Environment: N/A Area: Installation Subarea: Original Author: Seth Guthrie, Bentley Technical Support Group Create Material Macro The Create Material macro can quickly create new materials with industry standard property values. First download and install the Create Material.vbs file and save it to the folder: C:\SProV8i SS5\STAAD\Plugins\Create Material.vbs If there is an older version of the file already there, replace it with this one. To load the macro into STAAD.pro use Tools - Configure User Tools . And in the Customize User Defined Tools window click New (Insert) On the new row enter a name , like "Create Material" and in the file selection box select the Create Material.vbs file . Then click OK . Afterwards, to use the tool, go to Tools - User tools , or the Hammer icon at the end of the file toolbar. See Also Product TechNotes and FAQs Structural Product TechNotes And FAQs External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!
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Forum Post: RE: SELECT subscription changes for 2014
Brad_H If you provided a mechanism to lock the number of license in use, you would in-turn have one less company to process a billing for, less paper and less mail. Everyone of our other products running license managers, limited the number of application which can run, first one in gets a license, last one in does not. I believe this is a bad model for organization's like our which have a specific need with no tools or options from Bentley to limit the usage. And, you model forces the users to pay quarterly or purchase more licenses, both of which we had to do. Lots of users have been asking for this licence restriction but so far Bentley have not entertained the idea. THe overusage capability they see has an advantage. Well it use to be but is not going to be when they start sending out quarterly bills fro over usage. Give with the one hand and take with the other! You are right as I don't know any other software provider that has this licence arrangement. Bentley seriously need to reconsider this.
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Forum Post: RE: Refresh Auto Annotations Per Selection Set : ABD 593
I placed an SR but better if more people send an SR. My last ones didn't get answered at all..... Your request has been received and a Technical Support Analyst will contact you as soon as possible. Please note your Service Request number 7000108723 My SR is mentioning that all DG annotations disappear after the element got modified in the model. Thanks Wolfgang
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Forum Post: RE: SELECT subscription changes for 2014
Another question that came out of my conversation with my Accounts Manager. There io lots of talk about over usage but what about under usage of licence. We have 7no. MicroStation licences but over the last 3 months our average use was 4no, although we did have some over usage as well. Hopefully Bentley will take this into account when working out usage and billing.
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Forum Post: RE: Aternative to Excel
First step in the right direction however would be to go over to a more neutral document format. After what I have heard Office 2013 should be capable of doing that, working with Open Document Formats. From there the step to use different office suites is easy. www.theregister.co.uk/.../uk_picks_open_document_format_for_all_government_files
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Forum Post: RE: Converting UCM Macros to Basic
ElaineL I'm pretty sure I can't post anything online from work UCMs are pretty much write-only code. There aren't too many people around who understand them. One approach would be to document their functionality, and re-implement that functionality in whatever language. That process may also reveal that some UCMs written for older versions of MIcroStation have been superseded by the functionality provided by newer versions of MicroStation. In other words, some of your UCMs may be redundant. ElaineL I thought there was a good chance that I would be told not to use Basic - instead of answering my question As you have discovered, UCMs are obsolete in MIcroStation V8 i . There's a good chance that BASIC will also go the way of the Dodo in a future version of MicroStation. BASIC does not support all features of MicroStation; in contrast, VBA comprehensively supports MicroStation. VBA is implemented also in commonplace products such as Word and Excel: consequently you can solicit help from people outside the MicroStation community.
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Forum Post: RE: z section
You can use a Beta Angle command if you wish to orient the section such that geometrical axes would be parallel to global axes. By default, principal axes are parallel to global axes in STAAD.Pro.
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Forum Post: RE: IFC to Navisworks
Looks nice in Tekla BIMSight, so it looks like a bug in Navisworks.
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