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Modal response spectrum analysis

thread487-213763

Modal response spectrum analysis

Modal response spectrum analysis

(OP)
Hi everybody,
I'm working with a FEM software.
I'd like to know the procedure to performe a modal response spectrum analysis of a 3story building.
I've already modelled the structure and calculated the design spectrum.

Thanks for any help!  
Replies continue below

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RE: Modal response spectrum analysis

One approach is to synthesize a time history to satisfy the shock response spectrum.

Then use the time history as a base input to modal transient analysis.

Tom Irvine
www.vibrationdata.com

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