I'm getting bizarre diaphragm displacement, as seen in the snapshots below in the upper right corner of the plan view. This is only happening on Response Spectra Y- analyses. Y+ looks correct, along with both X-direction analyses. There is no issue with…

Dear all, Error found during the seismic definition analysis. Found the error "no unsupported masses found - check densities" . Kindly help me out from this . COLLEGE PROKECT.STD

Hello community, I am designing steel structure as per Eurocode EN 1993-1-1 (without any National Annex) with custom response spectra (elastic) for seismic loading. Now due to erection reasons, I have to make/assign pinned connection to beam 1320 &…

Given below is my STAAD input for a simple portal subject to forces at joints. I am trying to run a seismic analysis using response spectra in STAAD V8i. Please go through the input file below suggest what i might be doing to get the following error messages…

Hi, I am curious about a couple of things on the way STAAD handles response spectrum analysis, and below are my questions. I would be very glad if you can provide me some answers . I'm using build 20.07.05.15, by the way. Due to the client…

My question is regarding carrying out a response spectrum analysis in STAAD Pro. This is what I have done so far. I have set up the model in kN and METERS units. I have allowed for the joint weights in the form of udl loads on the beams in all three…

I would like to know how to accomodate response modification factor R while designing the members of the structure and also the importance factor with this method of dynamic analysis

I'm performing a response spectrum analysis on a plate structure. When specifying masses for the analysis, the help file says to use a mass reference load. The hiccup is that you can only apparently define one mass reference load. I have mass from several…

The option of saving the accelerations file used in the response spectrum command will generate a file with the extension ".acc" listing the accelerations of all the joints in the structure. Question: Is the information provided in the ".acc" file accessible…

Dear friends, Please guide me to calculate linear scale factor for response spectrum analysis (As per IS 1893). Value for f4 as per STAAD syntax.

Hi, I have two questions. 1) RAM SS has response spectra input window and I need to input X and Y Scale factor(default =1.0). Should I input I(importance f)/R there as starting point? or I/R is already reflected? In other words, 1.0 is ok to…