场地条件对抗震设计反应谱最大值的影响

英文篇名：Effect of Site Condition on the Maximum Value of Seismic Design Response Spectrum
中文刊名：土木工程与管理学报
英文刊名：Journal of Civil Engineering and Management
作者：郭锋 ; 吴东明 ; 许国富 ; 伋雨林
英文作者：GUO Feng1 ; WU Dong-ming2 ; XU Guo-fu2 ; JI Yu-lin3(1.Central-south Architectural Design Institute Co Ltd ; Wuhan 430071 ; China ; 2.Hubei Research Institute of Geophycics Survey and Design ; Wuhan 430056 ; China ; 3.a.School of Civil Engineering and Mechanics ; b.Hubei Key Laboratory of Control Structure ; Huazhong University of Science and Technology ; Wuhan 430074 ; China)
中文关键词：场地分类 ; 地震动 ; 设计反应谱 ; 场地系数
英文关键词：site classification ; seismic ; design response spectrum ; site coefficient
出版日期：2011-03-15
机构：中南建筑设计院股份有限公司;湖北省地球物理勘察技术研究院;华中科技大学土木工程与力学学院;华中科技大学控制结构湖北省重点实验室;
年：2011
期：01
出版单位：土木工程与管理学报

摘要

本文利用日本KIK-NET台网85个台站242组强震记录,按照我国2001抗震规范进行场地分类,分别计算每个场地地下基岩与地表阻尼比为5%的加速度反应谱,并按照地下基岩输入地震动PGA的大小分为四个区间,研究每个区间场地条件对地表加速度反应谱的影响:Ⅱ类场地在短周期对地震动的放大作用最大,Ⅲ类场地次之,Ⅰ类场地最小。结果表明反应谱最大值应随场地类别进行调整,最后给出了不同类别场地设计反应谱最大值的场地系数建议值。
With the 242 group strong earthquake records of 85 stations at KIK-NET in Japan,the sites was classified as 01 seismic code,the acceleration response spectrum with 5% damping ratio of underground bedrock and surface at each site were calculated,and according to the size of the input ground motion of underground bedrock PGA was divided into four intervals.This article studied the effect of site condition on surface acceleration response spectrum at each site,and concluded Class Ⅱsite with the largest ground motion amplification in short period,ClassⅠwith the least,after Class Ⅲ site.The result shows the maximum response spectrum adjusted by site classification,proposes the maximum value of site coefficient of various sites design response spectrum.

引文

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