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RISA to sway or not to sway

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I have modeled a 2-story, 4-bay (60’ 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?




Sharon Robertson, P.E.

Arcon Engineers 
5625 Ruffin Rd, Ste 130 
San Diego, CA  92123

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