考虑节点模型的混凝土框架结构抗震性能分析
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摘要
利用OpenSEES有限元平台中的Beam-Column Joint节点单元和梁柱纵筋粘结滑移单元,建立了考虑梁柱节点模型的混凝土框架结构有限元计算模型,分析了国内研究者已完成的两榀两层双跨混凝土框架结构在低周反复荷载作用下的试验,计算得到的滞回曲线和骨架曲线与试验曲线吻合良好。在此基础上,还对国内研究者已完成的一榀两层双跨混凝土框架结构的拟动力试验进行了模拟分析,模拟得到的结构位移时程反应曲线和结构底层层间恢复力曲线与试验曲线基本一致。分析表明考虑梁柱节点模型的混凝土框架结构有限元计算模型能够较好地反映混凝土框架结构在低周反复荷载与地震荷载作用下梁柱节点处纵筋的粘结滑移特性和整体结构各阶段的滞回性能,从而验证了OpenSEES有限元平台中的Beam-Column Joint节点单元和梁柱纵筋粘结滑移单元在混凝土框架结构抗震性能分析中的适用性,为研究混凝土框架结构的抗震性能提供一条简便途径。
The author utilize the Beam-Column Joint element and bond-slip element of the finite element platform OpenSEES,establishing the concrete frame finite calculation model which considering beam-column joint models,analysing two Two-Bay Two-Storey concrete frames under low cycle loading which tested by domestic researchers,The calculated hysteresis curves and skeleton curves agree well with experiment results. The author also simulate pseudo-dynamic test of one Two-Bay Two-Storey concrete frame. The calculated displacement time histories and hysteresis loops of 1 ststory shear-story drift agree with test results. The analytic results indicate that the concrete frame finite calculation model which considering beam-column joint models can effectively reflect bond-slip of longitudinal reinforcement at joints and hysteretic performance of integral structure at every stages,which proving applicability of Beam Column Joint element and bond-slip element of OpenSEES in seismic performance analyse of concrete frames,providing a convenient way for the research on seismic performance of concrete frame structures.
The author utilize the Beam-Column Joint element and bond-slip element of the finite element platform OpenSEES,establishing the concrete frame finite calculation model which considering beam-column joint models,analysing two Two-Bay Two-Storey concrete frames under low cycle loading which tested by domestic researchers,The calculated hysteresis curves and skeleton curves agree well with experiment results. The author also simulate pseudo-dynamic test of one Two-Bay Two-Storey concrete frame. The calculated displacement time histories and hysteresis loops of 1 ststory shear-story drift agree with test results. The analytic results indicate that the concrete frame finite calculation model which considering beam-column joint models can effectively reflect bond-slip of longitudinal reinforcement at joints and hysteretic performance of integral structure at every stages,which proving applicability of Beam Column Joint element and bond-slip element of OpenSEES in seismic performance analyse of concrete frames,providing a convenient way for the research on seismic performance of concrete frame structures.
引文
[1]Sezen H,Whittaker A S,Elwood K J,et al.Performance of reinforced concrete buildings during the August 17,1999 Kocaeli,Turkey earthquake,and seismic design and construction practise in Turkey[J].Engineering Structures,2003,25(1):103-114.
[2]Alemdar F,Sezen H.Shear behavior of exterior reinforced concrete beam-column joints[J].Structural Engineering&Mechanics,2010,35(1).
[3]Zhao B,Taucer F,Rossetto T.Field investigation on the performance of building structures during the 12 May 2008 Wenchuan earthquake in China[J].Steel Construction,2009,31(8):1707-1723.
[4]Youssef M,Ghobarah A.Modelling of RC Beam-column Joints and Structural Walls[J].Journal of Earthquake Engineering,2001,5(1):93-111.
[5]Shiohara H.New Model for Shear Failure of RC Interior BeamColumn Connections[J].Journal of Structural Engineering,2001,127(2):152-160.
[6]Biddah A,Ghobarah A.Modelling of shear deformation and bond slip in reinforced concrete joints[J].Structural Engineering&Mechanics,1999,7(4):413-432.
[7]Elmorsi M,Kianoush M R,Tso W K.Nonlinear analysis of cyclically loaded reinforced concrete structures[J].Aci Structural Journal,1998,95(6):725-739.
[8]Lowes L N,Mitra N,Altoonrash A.A Beam-Column Joint Model for Simulating the Earthquake Response of Reinforced Concrete Frames[R].Berkeley:Pacific Earthquake Engineering Research Center,2003.
[9]Ghobarah A,Biddah A.Dynamic analysis of reinforced concrete frames including joint shear deformation[J].Engineering Structures,1999,21(11):971-987.
[10]Altoonrash A.Simulation and damage models for performance assessement of reinforced concrete beam-column joints[D].California:Stanford university,2004.
[11]袁军.考虑节点模型的钢筋混凝土框架抗震性能研究[D].哈尔滨:哈尔滨工业大学,2011.
[12]杜文晨.基于Bouc-Wen模型的RC框架梁-柱节点与结构抗震性能分析[D].哈尔滨:哈尔滨工业大学,2013.
[13]Mitra N.An Analytical Study of Reinforced Concrete Beam-Column Joint Behavior under Seismic Loading[D].Washington:University of Washington,2007.
[14]姜晓红.钢筋混凝土框架结构非线性分析研究[D].上海:同济大学,2003.
[15]钟益村,任富栋,田家骅.二层双跨钢筋混凝土框架弹塑性性能试验研究[J].建筑结构学报,1981,2(3):34-41.
[16]印文铎,冯世平,沈聚敏.两层钢筋混凝土框架结构拟动力地震反应试验研究[J].土木工程学报,1990(3):23-35.
[17]吴健秋.基于OpenSees的梁-柱节点单元的适用性和定参方法研究[D].重庆:重庆大学,2007.
[18]GB50011-2010,建筑抗震设计规范[S].
[19]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.
[2]Alemdar F,Sezen H.Shear behavior of exterior reinforced concrete beam-column joints[J].Structural Engineering&Mechanics,2010,35(1).
[3]Zhao B,Taucer F,Rossetto T.Field investigation on the performance of building structures during the 12 May 2008 Wenchuan earthquake in China[J].Steel Construction,2009,31(8):1707-1723.
[4]Youssef M,Ghobarah A.Modelling of RC Beam-column Joints and Structural Walls[J].Journal of Earthquake Engineering,2001,5(1):93-111.
[5]Shiohara H.New Model for Shear Failure of RC Interior BeamColumn Connections[J].Journal of Structural Engineering,2001,127(2):152-160.
[6]Biddah A,Ghobarah A.Modelling of shear deformation and bond slip in reinforced concrete joints[J].Structural Engineering&Mechanics,1999,7(4):413-432.
[7]Elmorsi M,Kianoush M R,Tso W K.Nonlinear analysis of cyclically loaded reinforced concrete structures[J].Aci Structural Journal,1998,95(6):725-739.
[8]Lowes L N,Mitra N,Altoonrash A.A Beam-Column Joint Model for Simulating the Earthquake Response of Reinforced Concrete Frames[R].Berkeley:Pacific Earthquake Engineering Research Center,2003.
[9]Ghobarah A,Biddah A.Dynamic analysis of reinforced concrete frames including joint shear deformation[J].Engineering Structures,1999,21(11):971-987.
[10]Altoonrash A.Simulation and damage models for performance assessement of reinforced concrete beam-column joints[D].California:Stanford university,2004.
[11]袁军.考虑节点模型的钢筋混凝土框架抗震性能研究[D].哈尔滨:哈尔滨工业大学,2011.
[12]杜文晨.基于Bouc-Wen模型的RC框架梁-柱节点与结构抗震性能分析[D].哈尔滨:哈尔滨工业大学,2013.
[13]Mitra N.An Analytical Study of Reinforced Concrete Beam-Column Joint Behavior under Seismic Loading[D].Washington:University of Washington,2007.
[14]姜晓红.钢筋混凝土框架结构非线性分析研究[D].上海:同济大学,2003.
[15]钟益村,任富栋,田家骅.二层双跨钢筋混凝土框架弹塑性性能试验研究[J].建筑结构学报,1981,2(3):34-41.
[16]印文铎,冯世平,沈聚敏.两层钢筋混凝土框架结构拟动力地震反应试验研究[J].土木工程学报,1990(3):23-35.
[17]吴健秋.基于OpenSees的梁-柱节点单元的适用性和定参方法研究[D].重庆:重庆大学,2007.
[18]GB50011-2010,建筑抗震设计规范[S].
[19]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.