Calculation Method for the Exceedance Probabilities of Dynamic Shear Modulus Ratio and Damping Ratio of Conventional Soils
详细信息
- 责任者：Sun Rui (Harbin Engineering University ; Harbin 150001 ; China) ; Yuan Xiaoming
- 刊名：Northwestern Seismological Journal
- 出版年：2010
- 卷期：32(3)
- 关键词：原状土样 ; undisturbed soil sample ; 共振柱试验 ; resonant column tests
- 页码：p.209-214
- 图表：4 illus., 4 tables, 11 refs.
- 分类号：1702
- issnNo：ISSN1000-0844
- isbnNo：CN62-1048/P
摘要
The dynamic shear modulus ratio and damping ratio are the necessary parameters for analysis of ground motion,seismic safety evaluation of engineering sites,and seismic microzonation. In this paper, based on the testing results of nonlinear relationship between shear strain and dynamic shear modulus ratio,damping ratio for conventional soils, the calculation method of their exceedance probabilities is presented. The method includes the statistics of testing data,calculation of the exceedance probability and the curve fitting process.The calculation equation for the exceedance probabilities of the dynamic shear modulus ratio and damping ratio are proposed and the results may lay the foundation for seismic safety risk assessment basing on probability and reliability theory.