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Application of Conditional Mean Spectra in Liquefaction Triggering Evaluation
Liquefaction triggering procedures use two methods to develop the earthquake-induced cyclic shear stress: 1) the simplified procedure and 2) site-specific response analysis. In both approaches, site response analyses are used to calculate site-specific seismic demands. A uniform hazard response spectrum (UHRS), which aggregates the ground motion from multiple seismic sources, can be used as the input motion into the site response analyses. Alternatively, a suite of conditional mean spectra (CMS) input motions can be used. In this paper, a procedure for using CMS input motions for liquefaction triggering evaluation is proposed. The proposed procedure uses realistically shaped input ground motions that are strongly associated with a specific earthquake scenario, and typically results in reduced seismic demands.
Application of Conditional Mean Spectra in Liquefaction Triggering Evaluation
Liquefaction triggering procedures use two methods to develop the earthquake-induced cyclic shear stress: 1) the simplified procedure and 2) site-specific response analysis. In both approaches, site response analyses are used to calculate site-specific seismic demands. A uniform hazard response spectrum (UHRS), which aggregates the ground motion from multiple seismic sources, can be used as the input motion into the site response analyses. Alternatively, a suite of conditional mean spectra (CMS) input motions can be used. In this paper, a procedure for using CMS input motions for liquefaction triggering evaluation is proposed. The proposed procedure uses realistically shaped input ground motions that are strongly associated with a specific earthquake scenario, and typically results in reduced seismic demands.
Application of Conditional Mean Spectra in Liquefaction Triggering Evaluation
Kottke, Albert R. (author) / Boone, Michael D. (author) / Gregor, Nick J. (author) / Galagoda, Mahi (author)
Geotechnical Earthquake Engineering and Soil Dynamics V ; 2018 ; Austin, Texas
2018-06-07
Conference paper
Electronic Resource
English
Application of Conditional Mean Spectra in Liquefaction Triggering Evaluation
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