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Zero Interstory drift for story 1 - Etabs

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Star321

Star321

Structural
Joined
Jul 15, 2024
Messages
3
Location
CA
Hello,

I appreciate some help for the following problem. I am running response spectrum analysis for a 3-story shear wall building. The story drift calculated is 0 for story 1, even though there is a value for the deflection at story 1. Could you clarify what could be some reasons for this issue?
Thanks.
 
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Do you have a diaphragm tag D1 assigned to that story? Drift required.
 
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There is no reason for a storey to have zero drift other than some errors in the calculation.
Unlike diaphgram drifts, storey drifts should be calculated independent from drift assignemnt and should never be zero.
I'd suggest you to import the $et file and re-run the model
 
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