| 常规土类动剪切模量阻尼比超越概率计算方法 |
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| 引用本文： | 孙锐,袁晓铭,陈红娟.常规土类动剪切模量阻尼比超越概率计算方法[J].西北地震学报,2010,32(3):209-214. |
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| 作者姓名： | 孙锐 袁晓铭 陈红娟 |
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| 作者单位： | 哈尔滨工程大学;中国地震局工程力学研究所;北京工业大学建筑工程学院; |
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| 基金项目： | 黑龙江省自然科学基金，国家科技支撑计划，国家重点基础研究发展计划(973计划) |
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| 摘 要： | 土的动剪切模量比和阻尼比是土层地震反应分析、工程场地地震安全性评价和地震小区划工作中的必备参数,但其不确定性显著,对地震动和抗震设计影响很大。本文以我国常规土类动剪切模量比和阻尼比与剪应变非线性关系试验为基础,研究考虑这两个动力参数变异性下其超越概率的计算方法。方法包括了试验数据的整理、超越概率的计算以及两个动力参数和超越概率关系模拟等几个步骤,最后给出了我国常规土类动剪切模量比和阻尼比超越概率的计算公式,为我国基于概率和可靠度思想的工程地震安全风险评估提供了一定基础。
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| 关 键 词： | 常规土类 动剪切模量比 阻尼比 超越概率 计算方法 |
Calculation Method for the Exceedance Probabilities of Dynamic Shear Modulus Ratio and Damping Ratio of Conventional Soils |
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| SUN?Rui,YUAN?Xiao-ming and CHEN?Hong-juan.Calculation Method for the Exceedance Probabilities of Dynamic Shear Modulus Ratio and Damping Ratio of Conventional Soils[J].Northwestern Seismological Journal,2010,32(3):209-214. |
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| Authors: | SUN?Rui YUAN?Xiao-ming and CHEN?Hong-juan |
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| Institution: | SUN Rui1,2,YUAN Xiao-ming2,CHEN Hong-juan3(1.Harbin Engineering University,Harbin 150001,China,2.Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,3.The College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | 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.But the uncertainty of two parameters is great and have remarkable effects on the ground motion and design spectrum.In this paper,basing 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 probabiliti... |
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| Keywords: | Conventional soil Dynamic shear modulus ratio Damping ratio Exceedance probability Calculation method |
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