Monday, November 24, 2008

RE: Progressive collapse

I believe the software PERFORM developed by Computers and Structures does Progressive Collapse Analysis. We are just beginning to use this Software but I have heard many good things about it specially with regard to non-linear analysis of structural performance in design offices and the support system. I have to disclose that this program is developed by my colleague and friend Professor Powell of UC Berkeley. You may want to try this site for more information http://www.csiberkeley.com/products_PERFORM.html.

Of course, more high end software, such as DYTRAN and NASTRAN (both from www.mscsoftware.com) can be used to investigate progressive collapse. We have used these extensively and for about 8 years and are very satisfied with their capabilities and the support system.

Hope this helps.

Abolhassan Astaneh-Asl, Ph.D., P.E.,
Professor and Consultant on Structural Engineering,
Earthquake Engineering and Protection of Structures against Impact and Blast
------------------------------------------------


From: "Conrad Harrison" <sch.tectonic@bigpond.com>
To: <seaint@seaint.org>
Subject: RE: Progressive collapse

As far as I am aware there is no commercial software at present for
progressive collapse, just research. Also progressive collapse is more a
qualitative issue than quantitative.

Any frame analysis software with a programmable interface would be helpful
for the analysis. Without the programmable interface simply copy the model,
delete the members and change the loads. With a programmable interface
automatically delete members and change loads using the one model, and
search for the critical condition.

Regards

Conrad Harrison

B.Tech (mfg & mech), MIIE, gradTIEAust

mailto:sch.tectonic@bigpond.com

Adelaide

South Australia


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