填充墙框架结构在地震作用下的滞回特性与损伤分析
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摘要
填充墙采用基于光滑滞回模型的等效斜压杆模拟,建立了填充墙与框架协同工作的非线性地震反应分析模型.基于疲劳损伤模型,分析了填充墙框架结构的滞回反应和损伤特性及结构的屈服机制.计算结果表明,由于填充墙和框架能够分阶段释放地震能量,填充墙框架在罕遇地震作用下具有良好的耗能能力、塑性破坏机制和抗倒塌能力;填充墙设置的位置的不同对结构地震反应的影响是不容忽视的.
Considering the infill panels and frame work together,a nonlinear seismic analysis model of masonry infilled frames is established.An analytical macromodel based on an equivalent strut approach integrated with a smooth hysteretic model is used for representing masonry infill panels in nonlinear analysis of frame structures.The hysteretic model uses degrading control parameters for stiffness and strength degradation and slip pinching. Based on the fatigue damage model, hysteretic energy dissipation and damage performance of the masonry infilled frames as well as the overall yield mechanism and the sequence and the location of the yield plastic hinge are analyzed by means of a nonlinear structural analysis program IDARC2D Version 6.1. Results show that masonry infilled frame has good energy dissipation capacity , reasonable yield mechanism and earthquake collapse resistance capacity.
Considering the infill panels and frame work together,a nonlinear seismic analysis model of masonry infilled frames is established.An analytical macromodel based on an equivalent strut approach integrated with a smooth hysteretic model is used for representing masonry infill panels in nonlinear analysis of frame structures.The hysteretic model uses degrading control parameters for stiffness and strength degradation and slip pinching. Based on the fatigue damage model, hysteretic energy dissipation and damage performance of the masonry infilled frames as well as the overall yield mechanism and the sequence and the location of the yield plastic hinge are analyzed by means of a nonlinear structural analysis program IDARC2D Version 6.1. Results show that masonry infilled frame has good energy dissipation capacity , reasonable yield mechanism and earthquake collapse resistance capacity.
引文
[1]史庆轩,童岳生,钱国芳.砖填充墙钢筋混凝土框架的地震反应分析[J].西安建筑科技大学学报:自然科学版,1996,28(4):423-427.SHI Qing-xuan,TONG Yue-sheng,QIAN Guo-fang.Analysis of seismic responses of frame structures with masonry infilled walls[J].J.Xi'an Univ.of Arch.&Tech.(Nataral Science Edition),1996,28(4):423-427.
[2]刘建新.填充墙框架结构的一种新的结构计算模型[J].工程抗震,1994(1):22-25.LI UJian-xin.A newcalculating model of frames with infilled walls[J].Earthquake Resistant Engineering,1994(1):22-25.
[3]刘玉姝,李国强.带填充墙钢框架结构抗侧力性能试验及理论研究[J].建筑结构学报.2005,26(3):78-84.LI U Yu-shu,LI Guo-qiang.Experi mental and theoretical research on lateral load resistance of steel frames with in-filled walls[J].Journal of Building Structures,2005,26(3):78-84.
[4]FEMA-273,FEMA-274,NEHRP guidelines for the seismic rehabilitation of buildings[R].Washhington D.C.;Fed-eral Emergency Managerent Agency,1996.
[5]A Seismic Evaluation and Retrofit of Concrete Buildings[R],ATC-40.Applied Technology Council,Redwood City,Californnia,1996.
[6]MADAN A,REINHORN A M,MANDER J B,et al.Modeling of masonry infill panels for structural analysis[J].Journal of Strctural Engineering,1997,123(10):1295-1302.
[7]VALLES R E,REINHORN A M,KUNNATH S K,et al.IDARC2D version4.0:a programfor the inelastic damage analysis of buildings[CP].State University of New York at Buttalo,1996.
[8]REINHORN A M,VALLES R E,KUNNATHS K.IDARC2Dversion6.1:inelastic damage analysis of reinforced concrete structures[M].State University of New York at Buttalo,1996.
[9]REINHORN A M,VALLES R E,KUNNATH S K.IDARC2D version6.1:user's guide[M].State University of New York at Buffalo,2006.
[10]SIVASELVAN M V,REINHORN A M.Hysteretic models for cyclic behavior of deterioratinginelastic structures[R].1999.
[11]PARK YJ,ANG A HS.Mechanistic seismic damage model for reinforced concrete[J].Journal of Strctural Engi-neering,1985,111(4):722-739.
[12]PARK YJ,ANG A HS,WEN Y K.Seismic damage analysis of reinforced concrete buildings[J].Journal of Strc-tural Engineering,1985,111(4):740-757.
[2]刘建新.填充墙框架结构的一种新的结构计算模型[J].工程抗震,1994(1):22-25.LI UJian-xin.A newcalculating model of frames with infilled walls[J].Earthquake Resistant Engineering,1994(1):22-25.
[3]刘玉姝,李国强.带填充墙钢框架结构抗侧力性能试验及理论研究[J].建筑结构学报.2005,26(3):78-84.LI U Yu-shu,LI Guo-qiang.Experi mental and theoretical research on lateral load resistance of steel frames with in-filled walls[J].Journal of Building Structures,2005,26(3):78-84.
[4]FEMA-273,FEMA-274,NEHRP guidelines for the seismic rehabilitation of buildings[R].Washhington D.C.;Fed-eral Emergency Managerent Agency,1996.
[5]A Seismic Evaluation and Retrofit of Concrete Buildings[R],ATC-40.Applied Technology Council,Redwood City,Californnia,1996.
[6]MADAN A,REINHORN A M,MANDER J B,et al.Modeling of masonry infill panels for structural analysis[J].Journal of Strctural Engineering,1997,123(10):1295-1302.
[7]VALLES R E,REINHORN A M,KUNNATH S K,et al.IDARC2D version4.0:a programfor the inelastic damage analysis of buildings[CP].State University of New York at Buttalo,1996.
[8]REINHORN A M,VALLES R E,KUNNATHS K.IDARC2Dversion6.1:inelastic damage analysis of reinforced concrete structures[M].State University of New York at Buttalo,1996.
[9]REINHORN A M,VALLES R E,KUNNATH S K.IDARC2D version6.1:user's guide[M].State University of New York at Buffalo,2006.
[10]SIVASELVAN M V,REINHORN A M.Hysteretic models for cyclic behavior of deterioratinginelastic structures[R].1999.
[11]PARK YJ,ANG A HS.Mechanistic seismic damage model for reinforced concrete[J].Journal of Strctural Engi-neering,1985,111(4):722-739.
[12]PARK YJ,ANG A HS,WEN Y K.Seismic damage analysis of reinforced concrete buildings[J].Journal of Strc-tural Engineering,1985,111(4):740-757.
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