高强钢筋高强混凝土框架结构非线性地震反应分析
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摘要
研究配有高强钢筋的高强混凝土框架结构的抗震性能。采用OpenSees开放式软件对配有高强钢筋的高强混凝土框架结构进行了地震作用下的非线性有限元分析,并将计算结果与同等参数条件下的结构拟动力试验进行了对比。得到不同峰值加速度情况下的结构层间反应时程曲线,层间位移滞回曲线,以及破坏模式等,数值计算结果与试验吻合程度较好。研究结果表明利用基于OpenSees的有限元分析方法,能够有效地分析配有高强钢筋的高强混凝土框架结构的地震响应,可以辅助研究该结构的抗震性能。
The nonlinear seismic response analysis of a two-story high-strength concrete frame structure is completed by using OpenSees software,which installed high-strength transverse and partly longitudinal reinforcement.The placement of the high-strength bars is to increase the ductility of the frame by effectively confining the core concrete to a three dimensional compression state.The results of the FEM simulation are compared with those of pseudo-dynamic model test with the same parameters,so the relative time history responses for the stories,hysteretic loops and failure modes of the frame under different peak acce leration are obtained,results between numerical computation and test are matched well.The FEM based on OpenSees software can effectively analyze the seismic responses of the high-strength concrete frame structure reinforced with high-strength bars and can additionally study the seismic performance of the kind of structures.
The nonlinear seismic response analysis of a two-story high-strength concrete frame structure is completed by using OpenSees software,which installed high-strength transverse and partly longitudinal reinforcement.The placement of the high-strength bars is to increase the ductility of the frame by effectively confining the core concrete to a three dimensional compression state.The results of the FEM simulation are compared with those of pseudo-dynamic model test with the same parameters,so the relative time history responses for the stories,hysteretic loops and failure modes of the frame under different peak acce leration are obtained,results between numerical computation and test are matched well.The FEM based on OpenSees software can effectively analyze the seismic responses of the high-strength concrete frame structure reinforced with high-strength bars and can additionally study the seismic performance of the kind of structures.
引文
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[5]阎石,肖萧,阚立新,等.高强钢筋高强混凝土柱恢复力模型[J].沈阳建筑大学学报,2005,21(2):81-85.YAN Shi,XIAO Xiao,KAN Lixin,et al.Resilience model of high-strength reinforcement and high-strength columns[J].Journal of ShenyangJianzhu University(Natural Science),2005,21(2):81-85.
[6]阎石,张曰果,王旭东.圆形截面高强混凝土柱抗震性能试验研究[J].沈阳建筑大学学报:(自然科学版),2006,22(4):538-542.YANShi,ZHANG Yueguo,WANG Xudong.Seismic performance test study on circular HSC columns confined with high-strength rebar[J].Jour-nal of Shenyang Jianzhu University(Natural Science),2006,22(4):538-542.
[7]Mazzoni S,McKenna F,Scott MH,et al.OpenSees users manual[R].Berkeley:PEER,University of California,2004.
[8]王瑾,蔡新江,田石柱.基于OpenSees的CFRP加固RC短柱抗震性能数值模拟[J].世界地震工程,2009,25(4):108-111.WANG Jin,CAI Xinjiang,TIAN Shizhu.Numerical simulation on seismic behavior of CFRP retrofitted RC short column based on OpenSees[J].World Earthquake Engineering,2009,25(4):108-111.
[9]凌炯.面向对象开放程序OpenSees在钢筋混凝土结构非线性分析中的应用与初步开发[D].重庆:重庆大学,2004.LING Jiong.Applications and redevelopments of object-oriented and open-sourced program OpenSees on RC structure nonlinear analysis[D].Chongqing:Chongqing University,2004.
[10]Mazzoni S,McKenna F,Gregory L F,et al.Open system for earthquake engineering simulation examples manual[R].Berkeley:Pacific Earth-quake Engineering Research Center University of California,2006.
[11]白国良,刘志钦,康灵果.型钢混凝土框排架结构主厂房拟动力实验研究[J].世界地震工程,2009,25(3):55-60BAI Guoliang,LIUZhiqin,KANG Lingguo.Pseudodynamic test study on the main building of a section steel concrete frame-bent structure[J].World Earthquake Engineering,2009,25(3):55-60.
[2]陈滔,黄宗明.钢筋混凝土框架非弹性地震反应分析模型研究进展[J].世界地震工程,2002,18(1):91-97.CHEN Tao,HUANG Zhongming.A review of inelastic dynamic analysis models of reinforced concrete frames under earthquake ground motions[J].World Earthquake Engineering,2002,18(1):91-97.
[3]Hutchinson TC,Raychowdhury P,Chang B.Nonlinear structure and foundation response during seismic loading:Dual-lateral load resisting sys-tems[C]//Proceedings of the 8th US National Conference on Earthquake Engineering,2006,No 320.
[4]阎石,肖潇,张曰果.高强钢筋约束混凝土矩形截面柱的抗震性能试验研究[J].沈阳建筑大学学报:(自然科学版),2006,22(1):7-10.YAN Shi,XIAO Xiao,ZHANG Yueguo.Seismic performances of square HSC columns confined with high-strength PC rebar[J].Journal of Shen-yang Jianzhu University(Natural Science),2006,22(1):8-10.
[5]阎石,肖萧,阚立新,等.高强钢筋高强混凝土柱恢复力模型[J].沈阳建筑大学学报,2005,21(2):81-85.YAN Shi,XIAO Xiao,KAN Lixin,et al.Resilience model of high-strength reinforcement and high-strength columns[J].Journal of ShenyangJianzhu University(Natural Science),2005,21(2):81-85.
[6]阎石,张曰果,王旭东.圆形截面高强混凝土柱抗震性能试验研究[J].沈阳建筑大学学报:(自然科学版),2006,22(4):538-542.YANShi,ZHANG Yueguo,WANG Xudong.Seismic performance test study on circular HSC columns confined with high-strength rebar[J].Jour-nal of Shenyang Jianzhu University(Natural Science),2006,22(4):538-542.
[7]Mazzoni S,McKenna F,Scott MH,et al.OpenSees users manual[R].Berkeley:PEER,University of California,2004.
[8]王瑾,蔡新江,田石柱.基于OpenSees的CFRP加固RC短柱抗震性能数值模拟[J].世界地震工程,2009,25(4):108-111.WANG Jin,CAI Xinjiang,TIAN Shizhu.Numerical simulation on seismic behavior of CFRP retrofitted RC short column based on OpenSees[J].World Earthquake Engineering,2009,25(4):108-111.
[9]凌炯.面向对象开放程序OpenSees在钢筋混凝土结构非线性分析中的应用与初步开发[D].重庆:重庆大学,2004.LING Jiong.Applications and redevelopments of object-oriented and open-sourced program OpenSees on RC structure nonlinear analysis[D].Chongqing:Chongqing University,2004.
[10]Mazzoni S,McKenna F,Gregory L F,et al.Open system for earthquake engineering simulation examples manual[R].Berkeley:Pacific Earth-quake Engineering Research Center University of California,2006.
[11]白国良,刘志钦,康灵果.型钢混凝土框排架结构主厂房拟动力实验研究[J].世界地震工程,2009,25(3):55-60BAI Guoliang,LIUZhiqin,KANG Lingguo.Pseudodynamic test study on the main building of a section steel concrete frame-bent structure[J].World Earthquake Engineering,2009,25(3):55-60.
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