型钢高强混凝土短肢剪力墙-连梁节点抗震性能试验研究
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摘要
通过4个型钢高强混凝土短肢剪力墙-连梁节点试件和1个高强混凝土短肢剪力墙-连梁节点试件的低周反复荷载试验,主要研究配钢形式、轴压比和连梁结构类型对节点的滞回特性、变形能力及耗能能力等性能的影响。结果表明:型钢高强混凝土短肢剪力墙-连梁节点的滞回曲线饱满,承载力、刚度以及抗震性能较高强混凝土短肢剪力墙节点均有所改善,所有试件的延性均小于3,极限层间位移角均小于1/100,等效黏滞阻尼系数在0.17～0.24之间,表现出其延性和抗倒塌能力较差,耗能能力较好。
Four SRHC short-leg shear wall and coupling beam joints and one reinforced high-strength concrete(RHC) short-leg shear wall and coupling beam joint were designed for the low cyclic loading test.The influences of hysteretic behavior,deformability and energy dissipation capacity on the main variable parameters of steel type,axial compression ratio and beam type were studied.Results indicate that the hysteretic hoops of SRHC short-leg shear wall and coupling beam joints are plump,bearing capacity,stiffness and seismic performance are higher than RHC short-leg shear wall and coupling beam joint.But ductility is less than three,ultimate story drift is less than 1/100,and equivalent viscous damping coefficients vary from 0.17 to 0.24.It shows that all specimens have poor ductility,poor anti-collapse capacity,and higher energy dissipation capacity.
Four SRHC short-leg shear wall and coupling beam joints and one reinforced high-strength concrete(RHC) short-leg shear wall and coupling beam joint were designed for the low cyclic loading test.The influences of hysteretic behavior,deformability and energy dissipation capacity on the main variable parameters of steel type,axial compression ratio and beam type were studied.Results indicate that the hysteretic hoops of SRHC short-leg shear wall and coupling beam joints are plump,bearing capacity,stiffness and seismic performance are higher than RHC short-leg shear wall and coupling beam joint.But ductility is less than three,ultimate story drift is less than 1/100,and equivalent viscous damping coefficients vary from 0.17 to 0.24.It shows that all specimens have poor ductility,poor anti-collapse capacity,and higher energy dissipation capacity.
引文
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[9]凌湘.型钢高强混凝土T型截面短肢剪力墙受力性能研究[D].南宁:广西大学,2011.LING Xiang.Experimental research on mechanical behavior of steel reinforced high strength concrete T-shaped short pier shear wall[D].Nanning:Guangxi University,2011.(in Chinese)
[10]GB50011-2010建筑抗震设计规范[S].GB50011-2010 Code for Seismic Design of Buildings[S].(in Chinese)
[11]JGJ3-2002高层建筑混凝土结构技术规程[S].JGJ 3-2002Technical Specification for Concrete Structures of Tall Building[S].(in Chinese)
[2]陈孝堂.短肢剪力墙结构设计的常见问题及改进建议[J].建筑结构,2009,39(8):66-68.CHEN Xiaotang.Common problems and recommendations for improvement in the design of short shear wall structure[J].Building Structure,2009,39(8):66-68.(in Chinese)
[3]李惠.高强混凝土及组合结构[M].北京:科学出版社,2004.LI Hui.High-strength concrete and composition structure[M].Beijing:Science Press,2004.(in Chinese)
[4]赵鸿铁.钢与混凝土组合结构[M].北京:科学出版社,2001.ZHAO Hongtie.Steel and concrete composition structure[M].Beijing:Science Press,2001.(in Chinese)
[5]吕西林,董宇光,丁子文.截面中部配置型钢的混凝土剪力墙抗震性能研究[J].地震工程与工程振动,2006,26(6):101-107.LXilin,DONG Yuguang,DING Ziwen.Study on seismic behavior of steel reinforced concrete wall[J].Journal of Earthquake Engineering andEngineering Vibration,2006,26(6):101-107.(in Chinese)
[6]曹万林,范燕飞,张建伟,等.型钢混凝土剪力墙的抗震性能研究[J].地震工程与工程振动,2007,27(2):81-84.CAO Wanlin,FAN Yanfei,ZHANG Jianwei,et al.Research on seismic performance of steel reinforced concrete shear walls[J].Journal of Earth-quake Engineering and Engineering Vibration,2007,27(2):81-84.(in Chinese)
[7]苗亚州,陈宗平,苏益声,等.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):99-102.MIAO Yazhou,CHEN Zongping,SU Yisheng,et al.Experimental study on seismic behavior of steel reinforced high strength concrete short piershear wall[J].Building Structure,2010,40(8):99-1028.(in Chinese)
[8]伍依禄.型钢高强混凝土L型截面短肢剪力墙正截面承载力研究[D].南宁:广西大学,2011.WU Yilu.Study on bearing capacity of steel reinforced high strength concrete L-shaped short pier shear wall[D].Nanning:Guangxi University,2011.(in Chinese)
[9]凌湘.型钢高强混凝土T型截面短肢剪力墙受力性能研究[D].南宁:广西大学,2011.LING Xiang.Experimental research on mechanical behavior of steel reinforced high strength concrete T-shaped short pier shear wall[D].Nanning:Guangxi University,2011.(in Chinese)
[10]GB50011-2010建筑抗震设计规范[S].GB50011-2010 Code for Seismic Design of Buildings[S].(in Chinese)
[11]JGJ3-2002高层建筑混凝土结构技术规程[S].JGJ 3-2002Technical Specification for Concrete Structures of Tall Building[S].(in Chinese)
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