RE: RAM Frame Drift Control Module: Question about Virtual Loads and Load Pairs
I have only used virtual load cases with lateral force on a single diaphragm. The program allows you to enter other loads, but I've never had a good reason to do so.I ran a simple test here and I don't...
View ArticleRAM Frame Drift Control Module: Question about Virtual Loads and Load Pairs
My question concerns the Drift Control Module and the loads used for this analysis.With the understanding that this Module follows Castigliano's Theorem, under what circumstances would it make sense to...
View ArticleRE: Analysis and design of large mat foundations supported on soil using FEM...
Indu I agree with what Seth posted. One should analyze the foundation with strength level loads to find out the true strength level demand. Talking in terms of STAAD.Pro, one needs to create REPEAT...
View ArticleRE: Analysis and design of large mat foundations supported on soil using FEM...
Seth, thanks a lot for your response. I am responding to Sye's answer to both of you together. It will be my pleasure to see more and more experienced people joining in this discussion and share their...
View ArticleRE: Analysis and design of large mat foundations supported on soil using FEM...
Saikat Great to hear from you!! Responding to both of you (Seth and you as well). 1. Of course, we do use reference loads / repeat load commands to analyse such nonlinear problems. That is the correct...
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RE: RAM SS - Response Spectrum Analysis according to AS1170.4
Also, it seems that shear distribution along the building is in different directions! See below:
View ArticleRAM SS - Response Spectrum Analysis according to AS1170.4
Hi,I have 2 questions:1. If in the input for RSA we have Structural ductility, Structural performance, Importance factor then I presume scale X and Y shall be calculated automatically? So Scale x and y...
View Articlewind
In wind analysis we have to provide building natural frequency and building damping ratio kindly explain how we can calculate this.kindly answer me
View ArticleSeismic load
How to define seismic load definition and load cases in all 3 directions . And how to define load combinations as per IS 1893 the default load combinations in staad are confusing.
View ArticleRE: Eurocode / ANSI Steel design with constant temperature
You can always edit the value of E in the material constants and also change the value of FY in the Design Parameter to run the analysis and design as per the changed value of E and FY.
View ArticleEurocode / ANSI Steel design with constant temperature
Hello,I would like answer you about the steel design with a constant temperature of 300ºCWhere can I get the mechanical properties for S235/S275/S355 materials (fy / E) ?Where can I get the mechanical...
View ArticleRE: WIND
I calculated the frequencies by using your help but I'm still confused which frequency suited for wind analysis out of 65. I attached the staad file . (Please visit the site to view this file)
View ArticleRE: WIND
Your modal analysis looks correct. The only change I would suggest is to use positive values for all the loads when you are doing a modal calculation, as these loads are only used to calculate the...
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RE: Help with STAAD.Pro duplicating or splitting Loads and Properties
Here are a couple of pointersFrom the start up screen of STAAD.Pro, click on Configuration and ensure that the check boxes, highlighted below, are NOT checked.Go to the STAAD.Pro input editor and...
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Help with STAAD.Pro duplicating or splitting Loads and Properties
I am running an analysis on a large structure and STAAD keeps splitting up my loads and properties into numerous sets. For example when I assign Self weight to the model it works fine as one item but...
View ArticleRE: WIND
I am very thankful to you for the quick response. I worked on a lot of software but every company making money they don,t think about their customers. Bentley is the best company ever I see in my life....
View ArticleRE: asARE THESE LOAD COMBINATIONS CORRECT AS PER IS 1893 IN STAAD PRO
These combinations are as per the guidelines provided in section 6.3.1.2 of IS 1893 ( Part 1 ) : 2002 specifications and appear to be correct. Just ensure that you include the cases with negative signs...
View ArticleRE: Seismic load
Seems like this is the same question that has been answered at communities.bentley.com/.../118916
View ArticleRE: Problem in Response Spectrum Analysis by using IS 1893:1984
Scale factor is a factor by which the input spectrum data is multiplied when carrying out a response spectrum analysis. Typically when the acceleration spectrum is in terms of “g” ( normalized values),...
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RE: RAM SS - Response Spectrum Analysis according to AS1170.4
Thanks Seth,1. Why shall we apply I/R if in Australian code there are no such values? I-value related to Kp-value so that's ok but R-value simply doesn't exist in Australian standard. I would presume R...
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