Seismosoft | Earthquake Engineering Solutions

I have recently used SeismoStruct to perform Response Spectrum Analysis (RSA). It seems to me that there is a problem with the RSA. I was modelling a single circular column, symmetric in all directions. The problem is that the software does not apply the response spectrum in the Y direction. I thought first that the problem is with the Eigenvalue analysis, but the mode shapes and the participation factors seemed fine. I have also checked that both horizontal directions are considered from the analysis options. However, the deformation values for the Y direction is zero!!
I am not sure what is the problem. Please help me with that.

Thanks

Indeed there was a bug in the Response Spectrum Analysis of SeismoStruct 2016, which is already fixed in the new version of the software, SeismoStruct 2016, Release-2.

Best Regards,
Seismosoft Support

I am currently using SeismoStruct 2016, Release-6 that I just downloaded from your website and I am having the exact same issue. The model is struggling to compute the deformations in the Y direction.

Is this problem recurrent?

Thanks

Dear brmgirod,

I cannot reproduce the problem you mentioned. Could you send me your model at z.gronti@seismosoft.com to check it?

Hi,

I found the issue, the deformed shape viewer doesn't show the right deformed shape, but the global displacement tab indeed work. I'm sending you my model in order for you to see the issue.