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Earthquake structure

Posted Aug 19, 2021, 1:14 p.m. EDT Structural & Acoustics, Structural Mechanics Version 5.6 1 Reply

Enrico Borellini
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Hi. I tried to use the example (in the library). If I plot the axial stress on the column, all pillar are in traction (not in compression). Why ? Is there a problem into the model ?

1 Reply Last Post Aug 20, 2021, 2:48 a.m. EDT
Henrik Sönnerlind COMSOL Employee

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Posted: 3 years ago Aug 20, 2021, 2:48 a.m. EDT

By definition, all result quantities from a response spectrum analysis are without sign. They are computed by ‘square root of sum of squares’ type expressions. You can see the math on our Cyclopedia page, https://www.comsol.com/multiphysics/response-spectrum-analysis

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Henrik Sönnerlind
COMSOL
By definition, all result quantities from a response spectrum analysis are without sign. They are computed by ‘square root of sum of squares’ type expressions. You can see the math on our Cyclopedia page,

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