不同类型钢板剪力墙抗震性能的数值模拟
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摘要
为了给钢板剪力墙在实际工程中的应用提供理论支持,在试验研究的基础上,通过ANSYS模拟了薄钢板、十字加劲及开缝钢板剪力墙在低周往复荷载作用下的抗震性能,并与试验数据进行了对比,分析了滞回曲线、骨架曲线、内填板应力及变形等指标。结果表明:有限元分析与试验数据吻合较好,屈服荷载最大误差为10.9%,峰值荷载最大误差仅为1.4%;加劲肋使得内填板应力在小区格范围内发展更充分,但加载后期,加劲肋失效,对内填板面外约束作用微弱;柱脚和梁柱节点以下部位发生局部屈曲,导致整个结构失效。
In order to provide theory support for the use of steel plate shear walls in actual engineering,the seismic performance of the thin steel plate shear wall,the cross stiffener steel plate shear wall and the steel plate shear wall with slits,based on experiments,was simulated under the low cycle reciprocating loading via ANSYS and compared with the test data.The hysteresis curve,skeleton curve,the stress and deformation of infill plate were analyzed.The results indicate that the finite element model data agrees well with the experimental ones.The maximum error of yield load is 10.9%,and that of peak load is only 1.4%.The stress of infill plates gets full development within dividers,while the disabled cross stiffener just gives a weak restraint on the out plane deformation of an infill plate in the later loading period.The local instability below the beam-column joints and column base lead to the failure of the whole structure.
In order to provide theory support for the use of steel plate shear walls in actual engineering,the seismic performance of the thin steel plate shear wall,the cross stiffener steel plate shear wall and the steel plate shear wall with slits,based on experiments,was simulated under the low cycle reciprocating loading via ANSYS and compared with the test data.The hysteresis curve,skeleton curve,the stress and deformation of infill plate were analyzed.The results indicate that the finite element model data agrees well with the experimental ones.The maximum error of yield load is 10.9%,and that of peak load is only 1.4%.The stress of infill plates gets full development within dividers,while the disabled cross stiffener just gives a weak restraint on the out plane deformation of an infill plate in the later loading period.The local instability below the beam-column joints and column base lead to the failure of the whole structure.
引文
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[2]张文强,郝际平,解琦,等.半刚接框架-非加劲钢板墙体系抗震实验研究[J].世界地震工程,2010,26(4):107-133.ZHANG Wenqiang,HAO Jiping,XIE Qi et al.Experimental study on seismic behavior of semi-rigid steel frame non-stiffened thin steel plateshear wall structure[J].World Earthquake Engineering,2010,26(4):107-133.
[3]魏德敏,温沛纲.新型钢板剪力墙钢框架结构的地震响应分析[J].地震工程与工程振动,2004,24(1):63-67WEI Demin,WEN Peigang.Seismic response analyses of frame structure with slit steel shear walls[J].Earthquake Engineering and EngineeringVibration,2004,24(1):63-67.
[4]陈国栋,郭彦林.非加劲板抗剪极限承载力[J].工程力学,2003,20(4):49-54.CHEN Guodong,GUO Yanlin.Ultimate shear-carryingcapacity of unstiffened panels[J].Engineering Mechanics,2003,20(4):49-54.
[5]陈国栋,郭彦林,范珍,等.钢板剪力墙低周反复荷载试验研究[J].建筑结构学报,2004,25(2):19-26.CHEN Guodong,GUO Yanlin,FAN Zhen,et al.Cyclic test of steel plate shear walls[J].Journal of Building Structures,2004,25(2):19-26.
[6]Toko Hitaka and Chiaki Matsui.Experimental study on steel shear wall with slits[J].Journal of Structure Engineering,ASCE,2003,129(5):586-595.
[7]邵建华,顾强,申永康.钢板剪力墙抗震性能的有限元分析[J].华南理工大学学报(自然科学版),2008,36(1):128-133.SHAO Jianhua,GU Qiang,SHEN Yongkang.Finite element analysis of seismic performance of steel plate shear walls[J].Journal of South ChinaUniversity of Technology(Natural Science Edition),2008,36(1):128-133.
[8]GB/T228-2002,金属拉伸试验方法.GB/T228-2002,Standard Test Methods for Tension Testing of Metallic Materials[S].
[9]GB/T2975-1998,钢材力学及工艺性能试验取样.GB/T2975-1998,Steel?mechanical and technological?properties?of test samples[S].
[10]JTG101-96,建筑抗震试验方法规程[S].JTG101-96,Specification of Testing Methods for Earthquake Resistant Building[S].
[11]Mohamed Elgaaly,Yinbo Liu.Hysteresis model of thin infill plate for cyclic nonlinear analysis of steel plate shear walls[J].Journal of structuralengineering,2010,11:1423-1434.
[2]张文强,郝际平,解琦,等.半刚接框架-非加劲钢板墙体系抗震实验研究[J].世界地震工程,2010,26(4):107-133.ZHANG Wenqiang,HAO Jiping,XIE Qi et al.Experimental study on seismic behavior of semi-rigid steel frame non-stiffened thin steel plateshear wall structure[J].World Earthquake Engineering,2010,26(4):107-133.
[3]魏德敏,温沛纲.新型钢板剪力墙钢框架结构的地震响应分析[J].地震工程与工程振动,2004,24(1):63-67WEI Demin,WEN Peigang.Seismic response analyses of frame structure with slit steel shear walls[J].Earthquake Engineering and EngineeringVibration,2004,24(1):63-67.
[4]陈国栋,郭彦林.非加劲板抗剪极限承载力[J].工程力学,2003,20(4):49-54.CHEN Guodong,GUO Yanlin.Ultimate shear-carryingcapacity of unstiffened panels[J].Engineering Mechanics,2003,20(4):49-54.
[5]陈国栋,郭彦林,范珍,等.钢板剪力墙低周反复荷载试验研究[J].建筑结构学报,2004,25(2):19-26.CHEN Guodong,GUO Yanlin,FAN Zhen,et al.Cyclic test of steel plate shear walls[J].Journal of Building Structures,2004,25(2):19-26.
[6]Toko Hitaka and Chiaki Matsui.Experimental study on steel shear wall with slits[J].Journal of Structure Engineering,ASCE,2003,129(5):586-595.
[7]邵建华,顾强,申永康.钢板剪力墙抗震性能的有限元分析[J].华南理工大学学报(自然科学版),2008,36(1):128-133.SHAO Jianhua,GU Qiang,SHEN Yongkang.Finite element analysis of seismic performance of steel plate shear walls[J].Journal of South ChinaUniversity of Technology(Natural Science Edition),2008,36(1):128-133.
[8]GB/T228-2002,金属拉伸试验方法.GB/T228-2002,Standard Test Methods for Tension Testing of Metallic Materials[S].
[9]GB/T2975-1998,钢材力学及工艺性能试验取样.GB/T2975-1998,Steel?mechanical and technological?properties?of test samples[S].
[10]JTG101-96,建筑抗震试验方法规程[S].JTG101-96,Specification of Testing Methods for Earthquake Resistant Building[S].
[11]Mohamed Elgaaly,Yinbo Liu.Hysteresis model of thin infill plate for cyclic nonlinear analysis of steel plate shear walls[J].Journal of structuralengineering,2010,11:1423-1434.
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