• WARNING- Deflection check of member # 11 will not be performed as DFF value not provided.

    I am getting this warning: WARNING- Deflection check of member # 11 will not be performed as DFF value not provided. I am sharing the input command. Please provide your view. STAAD SPACE START JOB INFORMATION ENGINEER DATE 15-May-23 END JOB INFORMATION…
  • STAAD.Pro Steel Deflection Oddity

    I have a situation in STAAD.Pro version 22.08.00.175 where the code check (AISC 360-16 LRFD) is giving me wildly different answers than I see when inspect the element interactively. This is causing the SELECT function for this steel design to fail. …
  • RAM Frame Single Angle AISC Code Check (Compression)

    I understand that RAM automatically prevents a code check on certain shapes that are often intended on being for tension-only. https://communities.bentley.com/products/ram-staad/w/structural_analysis_and_design__wiki/3058/ram-frame---tension-only-faq…
  • Does staad support the design of W8x10 D (double profile)?

    I am updating an old warehouse and I need to strengthen the existing end rafters. I currently have an W8x10 D and I'm getting a warning stating that : WARNING: DESIGN OF SECTION FOR MEMBER # 613 IS NOT SUPPORTED. Does staad support double wide flange…
  • Error in Design - Simple Steel Flat Truss

    Hello All, I have modeled a simple steel truss to check my hand calculations. When viewing the global status of the model, the diagonal members are shown to have "Errors in Design." The members all have ratios from 1.84 to 3.6. However, my…
  • How does RAM compute the transformed MOI for AISC's effective MOI?

    Hello, I am wondering how RAM Steel computes the I_{tr} for composite beams. For example, I have a composite beam with the following properties as computed by RAM: But by hand, I am computing I_{tr} = 941.86, slightly less than RAM. I am guessing…
  • tension & compression flange utility ratio for built-up i-section

    Is there any option to get report for the tension & compression flange stress ratio of built-up I-section for the critical load cases.
  • AISC 9th Manual, Adjustment to the compression capacity due to local slenderness of compressed element

    Does Staad check local slenderness and adjust compression capacity of sections as per AISC 9th Edition Appendix B5 in case of slender flange/web? If yes, please descibe the procedure.
  • Out-of-plane bending in BCW Connections w/ axial loads in RAM Connection

    Attached is a screenshot from a delegated connection design I am currently working on.This is a W12x40 column with a W21x50 beam framing into the column web at the 2nd floor. In checking it for a 32k shear reaction, and a 41k axial load (ASD), RAM Connection…
  • Outdated References in RAM Connection

    Does anyone else think that when a company says they have incorporated a new design code into their software, they should probably update their code references at that time? Seem reasonable to anyone else? Instead, Bentley still references the 2005 seismic…
  • "RAM Structural System" modal analysis load combinations

    Hi, I am working on RAM Structural System. I looking to do a modal analysis on the building. Is there a way automatically generating the load combination for modal analysis? The way RAM does for direct analysis method? Or do I have to manually…
  • Please do check my design (steel design parameters specially)

    Dear sir, Greetings!! Please help me out from this as i am design a peb structure in staad pro its showing fail on 16 mm of web and flange thickness, but my seniors are saying (as per their experience basis only) that the column and rafter will…
  • OpenSTAAD function for notional load

    StaadPro Version: 20.07.11.82 I'd like to creat new load combination for direct analysis, Now it's possible to add repeat load by openstaad function, but function for adding notional load is not found. Can you provide the openstaad function…
  • Checkcode for back-to-back channel section

    In our last version of Staad V8i, serie 6, version 20.07.11.82, we can't make a checkcode for back-to-back channel section. In older version, we used to make checkcode for these section without any problem. Do you have any solutions about that? Thanks…
  • “Kc” (see Notes in Table B5.1 and Equation F1-4 of AISC 9th Edition)

    I am using STAAD PRO Version 20.07.11.70 I have noticed that when using “Wide Flange” and “ISection” from the Created User Tables, STAAD does not consider “Kc” (see Notes in Table B5.1 and Equation F1-4 of AISC 9th Edition) in the calculations of the…
  • Design of complex connections

    Hello all, For any of you that might be interested to know how you can design complex connections that are not covered by the codes, you are more than welcome to follow our webinar tomorrow for IDEA StatiCa, a unique software that links with STAAD.Pro…
  • RE: BCF - Seismic provision - max bolt Gage?

    AISC 358 Section 6.9.1 indicates, "The gage, g, is as defined in Figures 6.2 through 6.4. The maximum gage dimension is limited to the width of the connected beam flange." Furthermore, commentary C6.9 repeats this as the limit. Is your interpretation…
  • STAAD Design Sections

    Good day. I am having some trouble with my design of an office/warehouse. The model may have more issues than I'm aware of but for now my concern is with the designed sections. The steel sections that STAAD recommends are too large and are similar for…
  • Bechmark Problem in STAAD(X)

    I tried the benchmark problem, case 1, shown in AISC 13th edition, page 16.1-435 in STAAD(X). I was unable to get the correct answer. I used P-Delta analysis with P-large delta and P-small delta. I've done the same problem in STAAD.Pro and got the correct…
  • RE: Ram Connection SMF Doubler Weld Design

    It's probably best to check with the AISC Solution Center . If you are not sure how or don't get an answer we can try asking the question on your behalf. But for now the program does not evaluate the double plate welds. I added an enhancement request…
  • RAM SBeam v3.0

    Hello - My office still uses version 3.0 of RAM SBeam. When analyzing composite beams, I notice in the output that phi factor of 0.85 and 0.9 are used for flexure and shear, respectively. RAM SBeam v3.0 uses the 3rd Edition of AISC LRFD; however,…
  • Tension members in Staad

    Good Day, I have attempted the direct analysis method on a steel structure I have to design, however I have the following queries as it relates to the effect tension only members will have on the analysis (the structure has tension rods in the form…
  • direct analysis with tension members

    Good day I have modeled a structural steel frame building and analyzed it using the direct analysis method, however I have received a few warnings and I would like to know the relevant of these as well as their potential effect on my analysis results…
  • BUILD 20.07.11.70 SELECT SERIES 6 REVISION HISTORY

    new build select series 6 20.07.11.70, wherein what are the updates related to AISC steel design and IS 800-2007. COULD YOU SHARE REVISION HISTORY
  • STAAD Direct Analysis Method FLEX and AXIAL Parameters

    Which members are intended to be included in the parameters FLEX and AXIAL for a braced bay when using Direct Analysis Method? Does this include just the braced columns, beams and bracing or the entire frame (including gravity only beams/columns)? I'm…