型钢高强混凝土短肢剪力墙节点抗震性能非线性有限元分析
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摘要
在实验的基础上,通过设置合理的几何参数和材料本构模型,建立了型钢高强混凝土短肢剪力墙节点的ABAQUS非线性有限元模型,并对配钢形式、连梁线刚度、轴压比和混凝土强度等参数对构件抗震性能的影响进行了讨论。结果表明:ABAQUS软件能够准确地完成对型钢高强混凝土短肢剪力墙节点构件受力过程的模拟,峰值承载力和位移的模拟值和试验值吻合较好。参数分析显示,实腹式配钢构件受力性能优于格构式配钢构件;随着轴压比的提高,构件的峰值承载力增大而延性变差;采用高强混凝土可大幅提高构件承载力,但也会导致其延性下降,因此,建议采用强度为C50-C60的混凝土以获得较好的综合效益。
Based on experimental data,nonlinearity finite element models of steel reinforced high strength concrete(SRHC) short-leg shear wall joints were developed using ABAQUS by reasonably setting geometric parameters and material constitutive models.Parametric analysis was also carried out for different types of steel reinforcement,stiffness of couple beams,axial compressive ratio and concrete strength value.The results indicate that ABAQUS software is capable of simulating the bearing process of SRHC short-leg shear walls,and the peak bearing capacity and displacement values agree well with test results.Parametric analysis shows that mechanical performance of solid steel reinforced specimens is better than that of lattice steel reinforced specimens;with the increase of axial compression ratio,the loading capacity gets higher while the ductility gets worse;high strength concrete can dramatically increase the loading capacity meanwhile decrease the ductility,therefore,concrete strength of C50-C60 is recommended for better combined revenues.
Based on experimental data,nonlinearity finite element models of steel reinforced high strength concrete(SRHC) short-leg shear wall joints were developed using ABAQUS by reasonably setting geometric parameters and material constitutive models.Parametric analysis was also carried out for different types of steel reinforcement,stiffness of couple beams,axial compressive ratio and concrete strength value.The results indicate that ABAQUS software is capable of simulating the bearing process of SRHC short-leg shear walls,and the peak bearing capacity and displacement values agree well with test results.Parametric analysis shows that mechanical performance of solid steel reinforced specimens is better than that of lattice steel reinforced specimens;with the increase of axial compression ratio,the loading capacity gets higher while the ductility gets worse;high strength concrete can dramatically increase the loading capacity meanwhile decrease the ductility,therefore,concrete strength of C50-C60 is recommended for better combined revenues.
引文
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[6](JGJ3-2010)《高层民用建筑混凝土结构技术规程》[S].北京:中国建筑工业出版社,2010.(JGJ3-2010)Technical specification for concrete structures of tall building[S].Beijing:China Construction Press,2010
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[9]杨其伟,范源,王献云.型钢混凝土短肢剪力墙抗震性能的试验研究[J],世界地震工程,2009,25(2):106-110.YANG Qiwei,FAN Yuan,WANG Xianyun.Experimental studies on seismic behavior of shape steel concrete short-leg shear walls[J].Worldearthquake engineering,2009,25(2):106-110
[10]Dan D,Fabian A,Stoian V.Theoretical and experimental study on composite steel–concrete shear walls with vertical steel encased profiles[J].Journal of Constructional Steel Research 67(2011)800-813.
[11]肖良丽,彭少民.对称短肢剪力墙抗震性能试验研究[J].武汉科技大学学报(自然科学版),2007,30(3):286-288.Xiao Liangli,Peng Shaomin.Seismic resistance of short-limb wall of symmetrical flange:an experimental study[J].Journal of Wuhan Universi-ty of Sci.&Tech.(Natural Science Edition),2007,30(3):286-288.
[12]刘肖凡.钢筋混凝土短肢剪力墙抗震性能试验及应用[J].武汉大学学报(工学版),2009,42(2):236-239.LIU Xiaofan.Experimental research on aseismic behavior of RC short-leg shear wall and application[J].Engineering Journal of Wuhan Univer-sity,2009,42(2):36-239.
[13]黄东升,程文襄,彭飞.对称双肢短肢剪力墙的低周反复荷载试验研究[J].建筑结构学报,2005,23(3):51-56.HUANG Dongsheng,CHENG Wenrang,PENG Fei.Low-cycle loading experiment study on symmetric double short-pier shear walls[J].Journalof Building Structures,2005,23(3):51-56.
[14]戴绍斌,黄俊,肖良丽.钢筋混凝土短肢剪力抗震性能试验研究[J].世界地震工程,2005,21(2):48-51.DAI Shaobin,XIAO Liangli,HUANG Jun,et al.Experimental research on seismic performance of RC short-limb shear wall[J].World Earth-quake Engineering,2005,21(2):48-51.
[15]柯晓军.型钢高强混凝土短肢剪力墙节点抗震性能研究[D].南宁:广西大学,2011.KE Xiaojun.Research on seismic behavior of steel reinforced high-strength concrete short-leg shear wall joints[D].Nan ning:Guang xi Univer-stty,2011
[16]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,2000.GUO Zhenhai,SHI Xudong.Reinforced concrete theory and analyses[M].Beijing:Tsinghua University Press,2000.
[17]江见鲸,陆新征,叶列平.混凝土结构有限元分析[M].北京:清华大学出版社,2005.JIANG Jianjing,LU Xinzheng,YE Lieping.Finite element analysis on concrete structure[M].Beijing:Tsinghua University Press,2005.
[2]彭飞,程文襄,陆和燕,等.短肢剪力墙的定义[J].东南大学学报(自然科学版),2007,37(2):186-189.PENG Fei,Cheng Wenrang,Lu Heyan,et al.Definition of short-limb shear walls[J].Journal of Southeast University(Natural Science Edi-tion),2007,37(2):186-189.
[3]张品乐,李青宁,李晓蕾.L形截面短肢剪力墙抗震性能的模型试验研究[J].地震工程与工程振动,2010,30(4):52-56ZHANG Pinle,LI Qingning,LI Xiaolei.Experimenta research on seismic performance of short pier shear wall with L-shaped section[J],Jour-nal of Earthquake Engineering and Engineering Vibration,2010,30(4):52-56
[4]周云,刘自力,刘丰,等.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,2008,29(4):81-88.ZHOU Yun,L IU Zili,L IU Feng,et al.Experimental study on seismic performance of the short-pier shear wall(SPW)with rectangular section[J].Journal of Building Structures,2008,29(4):81-88.
[5]赵斌,卢文胜,吕西林等.超高层剪力墙(短肢剪力墙)简体结构整体模型振动台试验研究[J].建筑结构学报,2004,25(3):14-21.ZHAO Bin,LU Wensheng,LV Xilin etc.Shaking table experimental study of super-highrise building with shear wall(shor limb shear wall)-tube structure system[J].Journal of Building Structures,2004,25(3):14-21.
[6](JGJ3-2010)《高层民用建筑混凝土结构技术规程》[S].北京:中国建筑工业出版社,2010.(JGJ3-2010)Technical specification for concrete structures of tall building[S].Beijing:China Construction Press,2010
[7]吴敏哲,杨玉东,郭棣.T形型钢短肢剪力墙低周反复荷载试验研究[J].西安建筑科技大学学报(自然科学版),2009,41(4):461-466WU Mi nz he,YANG Yudong,GUO Di.An experiment study on the behavior of steel reinforced concrete short-limbed shear wall structure underdifferent directional cyclic loading[J].Journal of Xi’an University of Arch.&Tech.(Natural Science Edition)2009,41(4):461-466
[8]苗亚州,陈宗平,苏益声.型钢高强混凝土短肢剪力墙抗震性能试验研究[J],建筑结构,2010,40(8):99-102Miao Yazhou,Chen Zongping,Su Yisheng.Experimental study on seismic behavior of steel reinforced high strength concrete short pier shear wall[J].Building Structures,2010,40(8):99-102
[9]杨其伟,范源,王献云.型钢混凝土短肢剪力墙抗震性能的试验研究[J],世界地震工程,2009,25(2):106-110.YANG Qiwei,FAN Yuan,WANG Xianyun.Experimental studies on seismic behavior of shape steel concrete short-leg shear walls[J].Worldearthquake engineering,2009,25(2):106-110
[10]Dan D,Fabian A,Stoian V.Theoretical and experimental study on composite steel–concrete shear walls with vertical steel encased profiles[J].Journal of Constructional Steel Research 67(2011)800-813.
[11]肖良丽,彭少民.对称短肢剪力墙抗震性能试验研究[J].武汉科技大学学报(自然科学版),2007,30(3):286-288.Xiao Liangli,Peng Shaomin.Seismic resistance of short-limb wall of symmetrical flange:an experimental study[J].Journal of Wuhan Universi-ty of Sci.&Tech.(Natural Science Edition),2007,30(3):286-288.
[12]刘肖凡.钢筋混凝土短肢剪力墙抗震性能试验及应用[J].武汉大学学报(工学版),2009,42(2):236-239.LIU Xiaofan.Experimental research on aseismic behavior of RC short-leg shear wall and application[J].Engineering Journal of Wuhan Univer-sity,2009,42(2):36-239.
[13]黄东升,程文襄,彭飞.对称双肢短肢剪力墙的低周反复荷载试验研究[J].建筑结构学报,2005,23(3):51-56.HUANG Dongsheng,CHENG Wenrang,PENG Fei.Low-cycle loading experiment study on symmetric double short-pier shear walls[J].Journalof Building Structures,2005,23(3):51-56.
[14]戴绍斌,黄俊,肖良丽.钢筋混凝土短肢剪力抗震性能试验研究[J].世界地震工程,2005,21(2):48-51.DAI Shaobin,XIAO Liangli,HUANG Jun,et al.Experimental research on seismic performance of RC short-limb shear wall[J].World Earth-quake Engineering,2005,21(2):48-51.
[15]柯晓军.型钢高强混凝土短肢剪力墙节点抗震性能研究[D].南宁:广西大学,2011.KE Xiaojun.Research on seismic behavior of steel reinforced high-strength concrete short-leg shear wall joints[D].Nan ning:Guang xi Univer-stty,2011
[16]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,2000.GUO Zhenhai,SHI Xudong.Reinforced concrete theory and analyses[M].Beijing:Tsinghua University Press,2000.
[17]江见鲸,陆新征,叶列平.混凝土结构有限元分析[M].北京:清华大学出版社,2005.JIANG Jianjing,LU Xinzheng,YE Lieping.Finite element analysis on concrete structure[M].Beijing:Tsinghua University Press,2005.
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