高阻尼混凝土钢板暗支撑双肢剪力墙数值分析
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摘要
在试验研究的基础上,用非线性有限元分析软件MSC.Marc对高阻尼混凝土带钢板暗支撑双肢剪力墙进行了低周反复荷载下的数值模拟,并分析了轴压比、配钢率、高宽比和连梁刚度等对高阻尼混凝土带钢板暗支撑双肢剪力墙承载力和变形性能的影响规律.分析结果表明,数值模拟结果和试验结果吻合较好,当轴压比大于0.4时,高阻尼混凝土钢板暗支撑双肢剪力墙的延性显著下降,相对暗支撑配钢率为0.96~6.73时,能较好地改善双肢剪力墙的极限承载力.连梁跨高比、高宽比主要影响双肢剪力墙的承载力和变形性能.研究结果对高阻尼混凝土暗支撑双肢剪力墙的地震弹塑性计算具有一定的参考价值.
Based on the existing experimental data,a finite model of HDCSW with steel plate concealed bracing under low-cycle load was established reasonably with nonlinear finite element analysis software MSC.Marc.The influence of axial compression,steel ratio,height-width ratio and span-depth ratio on the capacity and deformation performance of HDCSW with steel plate concealed bracing was analyzed systemically.If the axial compression ratio is greater than 0.4,the ductility of HDCSW with steel plate concealed bracing will be obviously decreased.When the relative ratio of the steel plate concealed bracing is between0.96 and 6.73,it will improve the ultimate bearing capacity of HDCSW with steel plate concealed bracing.The height-width ratio and span-depth ratio have a major effect on the capacity and deformation performance.The research results of HDCSW with steel plate concealed bracings have a certain reference value with elastic-plastic calculation under seismic.
Based on the existing experimental data,a finite model of HDCSW with steel plate concealed bracing under low-cycle load was established reasonably with nonlinear finite element analysis software MSC.Marc.The influence of axial compression,steel ratio,height-width ratio and span-depth ratio on the capacity and deformation performance of HDCSW with steel plate concealed bracing was analyzed systemically.If the axial compression ratio is greater than 0.4,the ductility of HDCSW with steel plate concealed bracing will be obviously decreased.When the relative ratio of the steel plate concealed bracing is between0.96 and 6.73,it will improve the ultimate bearing capacity of HDCSW with steel plate concealed bracing.The height-width ratio and span-depth ratio have a major effect on the capacity and deformation performance.The research results of HDCSW with steel plate concealed bracings have a certain reference value with elastic-plastic calculation under seismic.
引文
[1]汪梦甫,宋兴禹.混合暗支撑耗能双肢剪力墙:中国,ZL2008200535764[P].2009-03-25.WANG Meng-fu,SONG Xing-yu.Coupled shear wall with enhanced concealed bracing;China,ZL2008200535764[P].2009-03-25.(In Chinese)
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[8]汪梦甫,宋兴禹.小高跨比连梁混合暗支撑高阻尼混凝土联肢剪力墙试验研究[J].地震工程与工程震动,2013,33(3):125-132.WANG Meng-fu,SONG Xing-yu.Experimental study on seismic performance of high damping concrete coupled shear wall with mixed concealed bracings and coupling beams of small span-depth ratios[J].Journal of Earthquake Engineering and Engineering Vibration,2013,33(3):125-132.(In Chinese)
[9]MSC Software.Volume A:Theroy and user information[M].Los Angeles:MSC Software Corporation,2007:336-341.
[10]MSC Software.Volume B:Element library[M].Los Angeles:MSC Software Corporation,2007:421-426.
[11]林旭川,陆新征,缪志伟,等.基于分层壳单元的RC核心筒结构有限元分析和工程应用[J].土木工程学报,2009,42(3):49-54.LIN Xu-chuan,LU Xin-zheng,MIAO Zhi-wei,et al.Finite element analysis and engineering application of RC core-tube structures based on the multi-layer shell elements[J].China Civil Engineering Journal,2009,42(3):49-54.(In Chinese)
[12]缪志伟,陆新征,叶列平.分层壳单元在剪力墙结构有限元计算中的应用[J].建筑结构学报,2006,27(S2):932-935.MIAO Zhi-wei,LU Xin-zheng,YE Lie-ping.Applications of the multi-layer shell element in the finite element analysis of shear wall structure[J].Journal of Building Structures,2006,27(S2):932-935.(In Chinese)
[13]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,2013:21-24.GUO Zhen-hai,SHI Xu-dong.Reinforced concrete theory[M].Beijing:Tsinghua University Press,2013:21-24.(In Chinese)
[14]LEGERON F,PAULTRE P.Uniaxial confinement model for normal and high-strength concrete columns[J].Journal of Structural Engineering,ASCE,2003,192(2):241-252.
[15]ZHAO J,SRITHARAN S.Modeling of strain penetration effects in fiber-based analysis of reinforced concrete structures[J].ACI Structural Journal,2007,104(2):133-141.
[2]ACI(2002),ACI 318-02 Building code requirements for structural concrete and commentary[S].Farmington:American Concrete Institute Committee,2002:50-63.
[3]JGJ3-2010高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2011:107-108.JGJ3-2010 Technical specification for concrete structures of tall buildings[S].Beijing:China Architecture&Building Press,2011:107-108.(In Chinese)
[4]汪梦甫,宋兴禹.高阻尼混凝土构件阻尼性能研究[J].振动与冲击,2012,31(11):173-179.WANG Meng-fu,SONG Xing-yu.Experimental research on damping property of high damping concrete members[J].Journal of Vibration and Shock,2012,31(11):173-179.(In Chinese)
[5]汪梦甫,陈文龙,宋兴禹.新型低剪力墙非线性有限元分析与试验研究[J].湖南大学学报:自然科学版,2013,40(11):6-12.WANG Meng-fu,CHEN Wen-long,SONG Xing-yu.Nonlinear finite element analysis and experimental study on a new type of low-rise shear wall[J].Journal of Hunan University:Natural Sciences,2013,40(11):6-12.(In Chinese)
[6]宋兴禹,汪梦甫.高阻尼混凝土混合暗支撑双肢剪力墙试验研究[J].湖南大学学报:自然科学版,2013,40(4):15-19.SONG Xing-yu,WANG Meng-fu.Experimental study on seismic performance of high damping concrete coupled shear wall with enhanced concealed bracings[J].Journal of Hunan University:Natural Sciences,2013,40(4):15-19.(In Chinese)
[7]汪梦甫,宋兴禹.高阻尼混凝土带暗支撑剪力墙抗震性能试验研究[J].地震工程与工程震动,2013,33(5):153-161.WANG Meng-fu,SONG Xing-yu.Experimental study on seismic performance of high damping concrete shear wall with concealed bracings[J].Journal of Earthquake Engineering and Engineering Vibration,2013,33(5):153-161.(In Chinese)
[8]汪梦甫,宋兴禹.小高跨比连梁混合暗支撑高阻尼混凝土联肢剪力墙试验研究[J].地震工程与工程震动,2013,33(3):125-132.WANG Meng-fu,SONG Xing-yu.Experimental study on seismic performance of high damping concrete coupled shear wall with mixed concealed bracings and coupling beams of small span-depth ratios[J].Journal of Earthquake Engineering and Engineering Vibration,2013,33(3):125-132.(In Chinese)
[9]MSC Software.Volume A:Theroy and user information[M].Los Angeles:MSC Software Corporation,2007:336-341.
[10]MSC Software.Volume B:Element library[M].Los Angeles:MSC Software Corporation,2007:421-426.
[11]林旭川,陆新征,缪志伟,等.基于分层壳单元的RC核心筒结构有限元分析和工程应用[J].土木工程学报,2009,42(3):49-54.LIN Xu-chuan,LU Xin-zheng,MIAO Zhi-wei,et al.Finite element analysis and engineering application of RC core-tube structures based on the multi-layer shell elements[J].China Civil Engineering Journal,2009,42(3):49-54.(In Chinese)
[12]缪志伟,陆新征,叶列平.分层壳单元在剪力墙结构有限元计算中的应用[J].建筑结构学报,2006,27(S2):932-935.MIAO Zhi-wei,LU Xin-zheng,YE Lie-ping.Applications of the multi-layer shell element in the finite element analysis of shear wall structure[J].Journal of Building Structures,2006,27(S2):932-935.(In Chinese)
[13]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,2013:21-24.GUO Zhen-hai,SHI Xu-dong.Reinforced concrete theory[M].Beijing:Tsinghua University Press,2013:21-24.(In Chinese)
[14]LEGERON F,PAULTRE P.Uniaxial confinement model for normal and high-strength concrete columns[J].Journal of Structural Engineering,ASCE,2003,192(2):241-252.
[15]ZHAO J,SRITHARAN S.Modeling of strain penetration effects in fiber-based analysis of reinforced concrete structures[J].ACI Structural Journal,2007,104(2):133-141.
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