基于MARC的一字形短肢剪力墙结构抗震性能有限元分析
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摘要
采用有限元软件MSC.MARC,对一字形短肢剪力墙结构进行了低周往复水平荷载下的数值模拟试验.主要通过一字形短肢剪力墙的应变云图、滞回曲线和骨架曲线等分析,研究了不同轴压比对一字短肢剪力墙结构抗震性能的影响.对本研究的一字形短肢剪力墙结构不同轴压比下抗震能力的结果进行比较可知,虽然轴压比越小,延性越好,抗震能力越强,但从综合因素来看,设计轴压比为0.15的短肢剪力墙的抗震效果明显.分析结果可为一字形短肢剪力墙基于性能的抗震设计时提供参考,推动一字形短肢剪力墙在实际工程中的运用.
The finite element software MSC.MARC is used for a glyph short limb shear wall structure under low cycle reciprocating horizontal load of the numerical simulation experiment.The seismic performance of different axial compression ratio on a glyph short limb shear wall is researched,mainly through analysis of a glyph short limb shear wall strain cloud,structure hysteresis curvers and skeleton curves,etc.After seismic performance result comparison of different axial compression ratio about a glyph short limb shear wall structure of this paper,it is shown that Axial compression ratio is smaller,the better the ductility and aseismic ability,but from the comprehensive factors comparison,design of axial compression ratio of 0.15short limb shear wall seismic effect is obvious.The results of the analysis provide reference data about a glyph short limb shear wall in the performance of seismic design,and promote a glyph short limb shear wall in the practical engineering application.
The finite element software MSC.MARC is used for a glyph short limb shear wall structure under low cycle reciprocating horizontal load of the numerical simulation experiment.The seismic performance of different axial compression ratio on a glyph short limb shear wall is researched,mainly through analysis of a glyph short limb shear wall strain cloud,structure hysteresis curvers and skeleton curves,etc.After seismic performance result comparison of different axial compression ratio about a glyph short limb shear wall structure of this paper,it is shown that Axial compression ratio is smaller,the better the ductility and aseismic ability,but from the comprehensive factors comparison,design of axial compression ratio of 0.15short limb shear wall seismic effect is obvious.The results of the analysis provide reference data about a glyph short limb shear wall in the performance of seismic design,and promote a glyph short limb shear wall in the practical engineering application.
引文
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[2]周云,刘自力,刘丰.一字形短肢剪力墙抗震性能的模型试验研究[J].建筑结构学报,2008,28(4):81-88.ZOU Yun,LIU Zi-li,LIU Feng.Experimental study on seismic performance of the short pier shear wall(SPW)with rectangular section[J].Journal of Building Structures,2008,28(4):81-88.
[3]韦宏,龚正为,方小丹.一字形短肢剪力墙结构抗震性能试验研究[J].建筑结构,2010(3):71-74.WEI Hong,GONG Zheng-wei,FANG Xiao-dan.Experimental research on seismic performance of shortpier shear wall structure with rectangular section[J].Building Structures,2010(3):71-74.
[4]肖良丽,陈萌,孟会英.ANSYS分析短肢剪力墙抗震性能[J].世界地震工程,2007(6):171-175.XIAO Liang-li,CHEN Meng,MENG Hui-ying.Analysis of earthquake-resistant behavior of shortlimbed walls[J].World Earthquake Engineering,2007(6):171-175.
[5]唐雨虹.带暗支撑“一字形”截面短肢剪力墙抗震性能分析[D].兰州:兰州理工大学,2012.TANG Yu-hong.Seismic behavior analysis of I-shape short pier shear wall with concealed bracings[D].Lanzhou:Civil Engineering of Lanzhou University of Technology,2012.
[6]左晓明,叶献国.基于MARC的钢筋混凝土桥墩非线性有限元分析[J].合肥工业大学学报,2007(8):1020-1024.ZUO Xiao-ming,YE Xian-guo.Nonlinear finite element analysis of RC bridge piers based on MARC[J].Journal of Hefei University of Technology,2007(8):1020-1024.
[7]缪志伟,吴耀辉,马千里,等.框架-核心筒高层混合结构的三维空间弹塑性抗震分析[J].建筑结构学报,2009(8):119-128.MIAO Zhi-wei,WU Yao-hui,MA Qian-li,et al.Seismic performance evaluation using nonlinear time history analysis with three-dimensional structural model for a hybrid frame core tube structure[J].Journal of Building Structures,2009(8):119-128.
[8]林旭川,陆新征,缪志伟,等.基于分层壳单元的R C核心筒结构有限元分析和工程应用[J].土木工程学报,2009(3):49-54.LIN Xu-chuan,LU Xin-zheng,MIAO Zhi-wei,et al.Finite element analysis and engineering application of RC core-tube structure based on the multi-layer shell element[J].China Civil Engineering Journal,2009(3):49-54.
[9]汪训流,陆新征,叶列平.往复荷载下钢筋混凝土柱受力性能的数值模拟[J].工程力学,2007(12):76-81.WANG Xun-liu,LU Xin-zheng,YE Lie-ping.Nu-merical simulation for the hysteresis behavior of rc columns under cycle loads[J].Engineering Mechanics,2007(12):76-81.
[10]GB 50010-2010,混凝土结构设计规范[S].北京:中国建筑工业出版社,2010.GB 50010-2010,Code for design of concrete structure[S].Beijing:China Architecture and Building Press,2010.
[11]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003.GUO Zhen-hai,SHI Xu-dong.Reinforced concrete theory and analyse[M].Beijin:Tsinghua University Press,2003.
[12]陆新征,叶列平,缪志伟,等.建筑抗震弹塑性分析[M].北京:中国建筑工业出版社,2009.LU Xin-zheng,YE Lie-ping,MIU Zhi-wei,et al.Elatsto-plastic analysis of building against earthquake[M].Beijing:Building Industry Press of China,2009.
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