Search found 6 matches

by ashtari
26 May 2017, 21:24
Forum: 03-Analytical/modelling capabilities
Topic: Problem with the Chang-Mander concrete model
Replies: 6
Views: 8546

Re: Problem with the Chang-Mander concrete model

The confinement factor in the plastic hinge region is 1.27 and it is automatically calculated. The stress points are fine too. I mentioned earlier, I am running the same model, the same stress-points, and I just change the material model type. The Chang-Mander model unlike the Mander model does not ...
by ashtari
23 May 2017, 23:20
Forum: 03-Analytical/modelling capabilities
Topic: Problem with the Chang-Mander concrete model
Replies: 6
Views: 8546

Re: Problem with the Chang-Mander concrete model

Dear Gronti,

I am aware of what SeismoStruct is supposed to do. But, for this material model (Chang-Mander), if you check the stress-strain of confined and unconfined concrete they both are similar to unconfined concrete, while using Mander model they are different. Could you check this problem ...
by ashtari
09 May 2017, 01:10
Forum: 03-Analytical/modelling capabilities
Topic: Problem with the Chang-Mander concrete model
Replies: 6
Views: 8546

Problem with the Chang-Mander concrete model

It seems that when using Chang-Mander concrete model in SeismoStruct, it does not apply the confining effects to the concrete core fibers. Therefore, the stress-strain response of the cover concrete is the same as the outer fibers of the core concrete. There is no such issue with the Mander model ...
by ashtari
25 Oct 2016, 21:33
Forum: 03-Analytical/modelling capabilities
Topic: Cracked section properties for inelastic elements in RSA
Replies: 4
Views: 8172

Cracked section properties for inelastic elements in RSA

I have utilized inelastic displacement-based fibre section frame elements in my model. I am running response spectrum analysis, which is basically elastic analysis. I was wondering if Seismostruct uses the elastic section properties, how I can modify the stiffness values to account for the cracked ...
by ashtari
08 Jul 2016, 01:28
Forum: 04-Unexpected behaviour/errors
Topic: Issue with the Response Spectrum Analysis in SeismoStruct
Replies: 4
Views: 7768

Issue with the Response Spectrum Analysis in SeismoStruct

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 ...
by ashtari
14 Mar 2016, 20:22
Forum: 04-Unexpected behaviour/errors
Topic: Batch mode output text file problem
Replies: 10
Views: 19412

Batch mode output text file problem

I have been running SeismoStruct in the batch mode and I wanted to extract the results of non-linear time history analysis from the application. However, the text file it generates contains irrelevant displacement values. I checked each model responses in the post-processor and they were all fine ...

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