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Daniel Simpson, M.ASCE

Sage Geotechnical

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RE: Inquiry About MCER Design Spectra for Different Site Classes from ASCE Hazard Tool for ASCE 7-22

Posted By Daniel Simpson 04-13-2026 12:45 PM
Found In Egroup: Professional and Career Topics \ view thread
The ASCE 7 seismic site class descrbes the overall soil stiffness at the site, with A being most stiff and E being least stiff. Generally, soft sites de-amplify short period vibrations and ampify long-period vibrations. Stiff sites generally amplify short period vibrations and deamplify long period vibrations. ...