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Damping Ratio per ASCE 7-16 with ideCAD

How ideCAD defines the damping ratio according to ASCE 7-16?

  • Design acceleration spectra used within the framework of design rules are automatically calculated according to the 5% damping ratio according to C12.9.1.3.

  • If the designer wants to change the damping ratio, it can be changed from the response spectrum case tab.

Modal Response Spectrum Analysis per ASCE 7-16 §12.9.1

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