平面大尺度混凝土框架弹性侧移二维地震行波效应研究
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摘要
针对平面大尺度砼框架柱侧移地震行波效应研究缺乏的现状,本文借助建筑结构通用有限元软件Midas/Gen,采用时程分析方法,对受二维水平地震作用的平面大尺度混凝土框架柱弹性侧移进行了地震行波效应研究。采用非一致激励与一致激励下平面大尺度砼框架柱侧移比值β来描述地震行波效应影响。详细分析了结构平面尺度、地震波速等因素对β值的影响规律。给出了地震行波效应影响显著的结构平面区域以及β值随结构平面面积与波速平方之比值x变化关系的回归方程。根据这些回归方程,可确定应考虑地震行波效应影响的结构平面尺度、地震波速以及相应β值。
For the fact that the research on lateral displacement of planar large-scale concrete frames under seismic traveling wave is absent,using the general building structure finite element software Midas/Gen,the elastic lateral displacement of the planar large-scale concrete frames under the two dimensional seismic traveling wave is studied with time-history analysis method.Using the ratio β(the column lateral displacement under non-uniform excitation divide the column lateral displacement under consistent excitation),the effect of traveling wave on columns of planar large-scale concrete frames is described.The effect of the structure plane scale,the earthquake wave velocity,etc on β is analyzed indetail.The significant structure planar region of the traveling wave effect,and the regression equation between the β and the ratio x(the structure area divide wave velocity square) are put forward.According to the regression equation,the structure plane scale,earthquake wave velocity and the corresponding β value considering seismic traveling wave effect are determined.
For the fact that the research on lateral displacement of planar large-scale concrete frames under seismic traveling wave is absent,using the general building structure finite element software Midas/Gen,the elastic lateral displacement of the planar large-scale concrete frames under the two dimensional seismic traveling wave is studied with time-history analysis method.Using the ratio β(the column lateral displacement under non-uniform excitation divide the column lateral displacement under consistent excitation),the effect of traveling wave on columns of planar large-scale concrete frames is described.The effect of the structure plane scale,the earthquake wave velocity,etc on β is analyzed indetail.The significant structure planar region of the traveling wave effect,and the regression equation between the β and the ratio x(the structure area divide wave velocity square) are put forward.According to the regression equation,the structure plane scale,earthquake wave velocity and the corresponding β value considering seismic traveling wave effect are determined.
引文
[1]GB50011-2010,建筑抗震设计规范[S]GB50011-2010,Code for Seismic Design of Buildings[S](in Chinese)
[2]刘枫,肖从真,等.首都机场3号航站楼多维多点输入时程地震反应分析[J].建筑结构学报,2006,27(5):56～63Liu Feng,Xiao Cong-zhen,et al.Timehistory Analysis of Terminal3of the Capital Airport under Multisupport and Multidimension Seismic Excitation[J].Journal of Building Structures,2006,27(5):56～63(in Chinese)
[3]楼梦麟,黄明开.上海浦东机场(二期)候机楼水平地震行波效应时程分析[J].建筑结构,2009,29(2):8～11Lou Meng-lin,Huang Ming-kai.Timehistory Analysis of Effect of Horizontal Seismic Travelingwave of Shanghai Pudong Airport TerminalⅡ[J].Building Structure,2009,29(2):8～11(in Chinese)
[4]杨志,韩庆华,周全智,等.多维多点激励下老山自行车馆屋盖结构的地震反应分析[J].天津大学学报,2007,40(11):1277～1283Yang Zhi,Han Qing-hua,Zhou Quan-zhi,et al.Seismic Response of the Roof Structure of Laoshan Cycling Gymnasium Under Multi-dimensional and MultiPoint Excitation[J].Journal of Tianjin University,2007,40(11):1277～1283(in Chinese)
[5]周定松,肖克艰,等.成都双流国际机场T2航站楼大厅多点多维弹性地震反应分析[J]建筑结构,2010,40(9):14～19Zhou Ding-song,Xiao Ke-jian,et al.Time-history Analysis on the Hall Structure in Chengdu Shuangliu International Airport T2Terminal Building under Multisupport and Multi-dimension Seismic Excitation[J].Building Structure,2010,40(9):14～19(in Chinese)
[6]朱民伟,张巍,李珠,刘元珍.考虑行波效应的三维河谷场地长周期地震动响应分析[J].工程抗震与加固改造,2011,33(1):1～5Zhu Min-wei,Zhang Wei,Li Zhu,Liu Yuan-zhen.Traveling Wave Effect on the Seismic Response of3D Velley Topogrphy Site under Long-period Seismic Excitation[J].Earthquake Resistant Engineering and Retrofitting,2011,33(1):1～5(in Chinese)
[2]刘枫,肖从真,等.首都机场3号航站楼多维多点输入时程地震反应分析[J].建筑结构学报,2006,27(5):56～63Liu Feng,Xiao Cong-zhen,et al.Timehistory Analysis of Terminal3of the Capital Airport under Multisupport and Multidimension Seismic Excitation[J].Journal of Building Structures,2006,27(5):56～63(in Chinese)
[3]楼梦麟,黄明开.上海浦东机场(二期)候机楼水平地震行波效应时程分析[J].建筑结构,2009,29(2):8～11Lou Meng-lin,Huang Ming-kai.Timehistory Analysis of Effect of Horizontal Seismic Travelingwave of Shanghai Pudong Airport TerminalⅡ[J].Building Structure,2009,29(2):8～11(in Chinese)
[4]杨志,韩庆华,周全智,等.多维多点激励下老山自行车馆屋盖结构的地震反应分析[J].天津大学学报,2007,40(11):1277～1283Yang Zhi,Han Qing-hua,Zhou Quan-zhi,et al.Seismic Response of the Roof Structure of Laoshan Cycling Gymnasium Under Multi-dimensional and MultiPoint Excitation[J].Journal of Tianjin University,2007,40(11):1277～1283(in Chinese)
[5]周定松,肖克艰,等.成都双流国际机场T2航站楼大厅多点多维弹性地震反应分析[J]建筑结构,2010,40(9):14～19Zhou Ding-song,Xiao Ke-jian,et al.Time-history Analysis on the Hall Structure in Chengdu Shuangliu International Airport T2Terminal Building under Multisupport and Multi-dimension Seismic Excitation[J].Building Structure,2010,40(9):14～19(in Chinese)
[6]朱民伟,张巍,李珠,刘元珍.考虑行波效应的三维河谷场地长周期地震动响应分析[J].工程抗震与加固改造,2011,33(1):1～5Zhu Min-wei,Zhang Wei,Li Zhu,Liu Yuan-zhen.Traveling Wave Effect on the Seismic Response of3D Velley Topogrphy Site under Long-period Seismic Excitation[J].Earthquake Resistant Engineering and Retrofitting,2011,33(1):1～5(in Chinese)
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