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Re: RISA to sway or not to sway

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Sharon,

It sounds like you won't be able to if you are using RISA-2D.  I don't think the model will show any results for the out-of-plane buckling or reactions...  I modeled a truss in Staad, put wind on it, but was getting no reactions because I chose "plane" and not "space."

In your case, you'll probably have to do a manual check of the frame (the beams and columns) for the out-of-plane behavior.  It sounds like a storefront.

HTH,
DT, SE
SF, CA

Sharon <sharon(--nospam--at)arconengineers.com> wrote:
Listers,
 
I have modeled a 2-story, 4-bay (60â?? long) moment frame in RISA-2D.  The frame is supported out-of-plane completely at the roof level but only at the 2 exterior columns at the floor level.
 
What is the best way to model the 3 interior columns and the floor level beams?
 
TIA 
 
Sharon Robertson, P.E.
Arcon Engineers 
5625 Ruffin Rd, Ste 130 
San Diego, CA  92123

858/503-7854
858/503-7858 fax
Visit us on the web at www.arconengineers.com
 


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