Seismosoft | Earthquake Engineering Solutions

Dear sir,
Recently I was doing an IDA analysis,and of course i encounter a lot of problems, especially the "convergence" and "unable to apply",at last i figure out those problems at the help of this forum.Thanks very much!
I want to compare my results analysed by SeismoStruct with other nonlinear finite software,but it seems that SeismoStruct doesn't have the Kent-Scott -Park concrete constitutive model,is that true,and can i create the model by myself?

Xiang Chang,master student
Zhejiang University（Hangzhou,China）

Dear xiangc,

The refered concrete model is not available in SeismoStruct. If you carry out a search on this Forum for the term "user-defined" or "implement models" you should find a number of posts on this matter. The following topic might also help you:
http://www.seismosoft.com/forum/viewtopic.php?f=3&t=32

Dear Xiang Chang,

I assume you wish to compare SeismoStruct results with those obtained with OpenSees, where the Kent-Scott-Park concrete model is typically employed.

For what it might be worth, my experience on this front, based on many such comparisons, is that the impact on results stemming from the use of the aforementioned constitutive relationship, instead of that proposed by Mander et al., which is typically used in SeismoStruct, are not necessarily of major significance.

Best,

Rui