Nonlinear shear mass participation factor (r(d)) for cyclic shear stress ratio evaluation

Date

2004-02-01

Author

Çetin, Kemal Önder

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Most methods for assessment of in situ seismic soil liquefaction potential require evaluation of the earthquake-induced cyclic shear stress ratio (CSR). Estimates of the in situ CSR can be developed directly, using dynamic response analyses, but it is common in 'simplified' analysis methods to develop estimates of the in situ CSR using empirical relationships. Unfortunately, the most widely used existing empirical relationships are based on limited response analyses and do not take full advantage of current knowledge of factors affecting this response problem. As a result, they are both biased and unnecessarily imprecise. This paper presents the results of a relatively comprehensive suite of site response studies (2153 site response analyses), performed using carefully selected suites of site conditions and input time histories, to provide an improved basis for development of estimates of in situ CSR using the r(d)-approach. The resulting empirical correlations, developed using the Bayesian updating method, provide a much improved basis for simplified empirical evaluation of CSR as a function of (1) depth; (2) earthquake magnitude; (3) intensity of shaking; and (4) site stiffness.

Subject Keywords

Geotechnical Engineering and Engineering Geology, Soil Science, Civil and Structural Engineering

URI

https://hdl.handle.net/11511/36732

Journal

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING

DOI

https://doi.org/10.1016/j.soildyn.2003.10.008

Collections

Department of Civil Engineering, Article

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Citation Formats

K. Ö. Çetin, “Nonlinear shear mass participation factor (r(d)) for cyclic shear stress ratio evaluation,” SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, pp. 103–113, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36732.