汉口地区长周期设计地震反应谱

英文篇名：Long-period seismic design spectra in Hankou area
中文刊名：武汉大学学报(工学版)
英文刊名：Engineering Journal of Wuhan University
作者：李恒 ; 冯谦 ; 蔡永建 ; 郑水明 ; 雷东宁
英文作者：LI Heng1 ; 2 ; FENG Qian1 ; 2 ; CAI Yongjian1 ; 2 ; ZHENG Shuiming1 ; 2 ; LEI Dongning1 ; 2(1.Institute of Seismology ; China Earthquake Administration ; Wuhan 430071 ; China ; 2.Wuhan Institute of Earthquake Engineering ; Wuhan 430071 ; China)
中文关键词：长周期反应谱 ; 强地面运动 ; 地震地质环境 ; 场地条件 ; 抗震设计
英文关键词：long-period response spectra ; strong ground motion ; seismic geological environment ; site condition ; aseismatic design
出版日期：2011-08-28
机构：中国地震局地震研究所;武汉地震工程研究院;
年：2011
期：04
出版单位：武汉大学学报(工学版)

摘要

从分析汉口地区所处的地震地质环境与场地岩土条件入手,考虑不同震级的潜在地震对场地长周期加速度反应谱的贡献,强调强地面运动记录长周期信号的可靠性,选用了102条水平向强地震动加速度记录.通过统计分析强震记录的平均加速度反应谱,建立了适用于柔性结构抗震设计的长周期地震加速度反应谱.
In this paper,102 strong ground motion acceleration records are used to calculate the average acceleration response spectra.According to the basic forms and characteristics of the average spectrum of strong motion records,the seismic design response spectra in long-period for flexible structures are established.In order to select representative strong ground motion records,the following factors are considered:1) seismic geological environment of Hankou and site soil condition;2) the reliability of strong ground motion records in long-period phase;3) influence to long-period response spectra of potential earthquakes with different magnitudes.

引文

[1]俞言祥.长周期地震动研究综述[J].国际地震动态,2004,307(7):1-5.
    [2]谢礼立,周雍年.地震动反应谱的长周期特性[J].地震工程与工程振动,1990,10(1):1-20.
    [3]汪素云,俞言祥.利用中国数字地震台网宽频带记录研究长周期地震动反应谱特性[J].地震学报,1998,20(5):481-488.
    [4]王君杰,范立础.规范反应谱长周期部分修正方法的探讨[J].土木工程学报,1998,31(6):49-55.
    [5]Boore D M.Effect of baseline corrections on displace-ments and response spectra for several recordings ofthe 1999Chi-Chi,Taiwan,earthquake[J].Bulletin ofthe Seismological Society of America,2001,91:1199-1211.
    [6]Faccioli E,Paolucci R,Rey J.Displacement spectra forlong periods[J].Earthquake Spectra,2004,20:347-376.
    [7]Paolucci R,Rovelli A.On the reliability of long-periodresponse spectral ordinates from digital accelerograms[J].Earthquake Engineering and Structural Dynamics,2008,37:697-710.
    [8]Akkar S,Bommer J J.Influence of long-period filtercut-off on elastic spectral displacements[J].Earth-quake Engineering and Structural Dynamics,2006,35:1145-1165.