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http://dx.doi.org/10.7843/kgs.2017.33.12.45

Case Study on Influential Factors of Nonlinear Response History Analysis - Focused on 1989 Loma Prieta Earthquake -  

Liu, Qihang (Dept. of Civil and Environmental Eng., Wonkwang Univ.)
Lee, Jin-Sun (Dept. of Civil and Environmental Eng., Wonkwang Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.33, no.12, 2017 , pp. 45-58 More about this Journal
Abstract
As many seismic codes for various facilities are changed into a performance based design code, demand for a reliable nonlinear response-history analysis (RHA) arises. However, the equivalent linear analysis has been used as a standard approach since 1970 in the field of site response analysis. So, the reliability of nonlinear RHA should be provided to be adopted in replace of equivalent linear analysis. In this paper, the reliability of nonlinear RHA is reviewed for a layered soil layer using Loma Prieta earthquake records in 1989. For this purpose, the appropriate way for selecting nonlinear soil models and the effect of base boundary condition for 3D analysis are evaluated. As a result, there is no significant differences between equivalent linear and nonlinear RHA. In case of 3D analysis, absorbing boundary condition should be applied at base to prevent rocking motion of the whole model.
Keywords
Site response analysis; Site amplification; Equivalent linear analysis; Response history analysis; Performance-based design; Nonlinear analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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