Practices and Procedures for Site-Specific Evaluations of Earthquake Ground Motions (2012) / Chapter Skim
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Pages 77-80
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From page 77... ...
TABLE B30 SOIL MODELS FOR NONLINEAR TOTAL STRESS SITE RESPONSE ANALYSES Count Hyperbolic with Masing criteria 4 Modified Hyperbolic with Masing criteria (e.g., M-K-Z) 12 Modified Hyperbolic with non Masing criteria (e.g., 4 MRDF to match both modulus reduction and damping curves)
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From page 78... ...
ANALYSIS SEE NEXT PAGES FOR DETAILS Count Site class 12 Seismic hazard level 6 Structure type 10 When porewater pressure ratio exceeds a given value -- 10 please specify Other 16 Site class dependent -- please list site class: Site Class F, or sometimes even for E to lower the seismic design category F Sf F Site Class F for IBC projects and when liquefaction is predicted for DOT projects F, T > 0.5 sec F E,F F F, Liquefiable Table continued on p.69
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From page 79... ...
UBC Sand [ ] Other TABLE B32 SOIL MODELS AND POREWATER PRESSURE GENERATION MODELS IN NONLINEAR EFFECTIVE-STRESS SITE RESPONSE ANALYSES Value Count Dobry 3 Elgamal 3 Martin-Finn-Seed 5 Matasovic (modified Dobry et al.
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From page 80... ...
Other TABLE B33 THE TOP THREE UNCERTAINTIES IN THE INPUT TO A TYPICAL SEISMIC SITE RESPONSE ANALYSIS Value Count Low-strain stiffness (represented by Gmax or Vs) 11 Higher strain stiffness (represented by modulus reduction 15 or backbone curve)
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