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Practices and Procedures for Site-Specific Evaluations of Earthquake Ground Motions (2012) / Chapter Skim
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Pages 27-33

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From page 27...
... , and also to select domestic and 1 General Practice international researchers and software developers identified 2 Criteria and Programs Used in Site Response Analysis by PIs. 3 Dimensions, Analysis, and Model Type 4 Seismic Hazard Motion Input Required for Site Response It should be noted that the list of participants was not Analysis developed with any explicit consideration of strict statisti- 5 Soil Profile Input Required for Site Response Analysis cal concepts.
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From page 28...
... site response analyses in-house and researchers that were contacted primarily to obtain relevant information about the programs and/or models they developed. This study does not further identify the respondents to preserve the prom- SURVEY RESPONSES ised anonymity.
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From page 29...
... empirically derived site factors and (2) computer strong levels of shaking where their inherent assumptions software for site response analysis.
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From page 30...
... Selection of spectrally compatible ground motion time histories is the next important step in developing input for A number of respondents said that they performed laborasite response analysis. Many of the respondents selected nat- tory tests on soil samples to develop dynamic soil properties; ural time histories; significantly fewer used synthetic ground however, more respondents indicated that they used modulus motions.
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From page 31...
... Nonlinear Total Stress Analysis SITE RESPONSE ANALYSIS The survey responses reflect a broad range of opinions as to when a nonlinear (NL) site response analysis is needed.
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From page 32...
... For the simplified method of soil liquefaction assessment, most respondents reported that they use surface PGA from The survey listed a series of input parameters to typical equivalent-linear analysis. Few respondents, though, indisite response analyses and asked which were considered most cated that they use computed surface PGA from nonlinear important.
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From page 33...
... 23 response, (2) SFSI analysis, (3)
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Key Terms

  • simplified method
  • site response
  • site class
  • input motions
  • response analysis

  • earthquake engineering
  • time histories
  • rigorous spectral
  • modified hyperbolic
  • ground motions

  • soil models
  • nonlinear total
  • soft soils
  • site factors
  • seismic hazard

  • ground motion
  • hazard level
  • response analyses
  • input ground
  • slope stability

  • spectral matching
  • seismic site
  • geotechnical earthquake
  • stability analysis
  • total stress

  • damping curves
  • masing rules
  • shear wave
  • modulus reduction
  • surface response


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