组合深梁低周反复荷载试验研究
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摘要
组合深梁作为一种新型的耗能构件,可以实现宽范围的刚度渐变调幅。通过两片跨高比分别为2.0和1.0的组合深梁低周反复荷载试验,研究了其破坏过程和破坏机理,得到了深梁的滞回曲线、承载力及承载力退化系数、延性系数和能量耗散系数。研究结果表明:组合深梁随着跨高比从2.0减小到1.0,承载力增加了190%;采用混凝土板限制钢板的平面外屈曲,可以充分利用钢材的性能;钢-混凝土组合深梁是一种理想的水平抗侧力构件。
As an innovative lateral energy-dissipation system,composite deep beams used in structural frames can achieve a wide range of stiffness adjustment.The tests were conducted on two composite deep beam specimens of onethird of full scale,which subjected to cyclic horizontal loads.These tests provided data on a detailed performance of the walls that formed the basis for the investigation on the lateral stiffness,ductility,energy absorption,load versus displacement envelope and hysteretic characteristics.The results show that the lateral resisting capacity of this type system can be increased 190% as the span-to-depth ratio changed from 2.0 to 1.0.The Experimental results also show that the structure has significant ductility and energy dissipation ability.Lateral pre-cast reinforced concrete plate can stop the buckling of steel plate to make full use of the materials.The composite deep beam can be an effective lateral load resisting element.
As an innovative lateral energy-dissipation system,composite deep beams used in structural frames can achieve a wide range of stiffness adjustment.The tests were conducted on two composite deep beam specimens of onethird of full scale,which subjected to cyclic horizontal loads.These tests provided data on a detailed performance of the walls that formed the basis for the investigation on the lateral stiffness,ductility,energy absorption,load versus displacement envelope and hysteretic characteristics.The results show that the lateral resisting capacity of this type system can be increased 190% as the span-to-depth ratio changed from 2.0 to 1.0.The Experimental results also show that the structure has significant ductility and energy dissipation ability.Lateral pre-cast reinforced concrete plate can stop the buckling of steel plate to make full use of the materials.The composite deep beam can be an effective lateral load resisting element.
引文
[1]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):19-26,38.(CHEN Guodong,GUO Yanlin,FAN Zhen,etal.Cyclic test of steel plate shear walls[J].Journal ofBuilding Structures,2004,25(2):19-26,38.(inChinese))
[2]郑宏,张维刚,杨飞颖.钢-混凝土组合深梁滞回性能分析[C]//宋玉普,贾金青.现代混凝土基本理论及工程应用:全国第十届混凝土结构基本理论及工程应用学术会议论文集.北京:中国建筑工业出版社,2008:284-288.(ZHENG Hong,ZHANG Weigang,YANG Feiying.Hysteretic behaviors of the steel-concrete composite deep beams[C]//SONG Yupu,JIA Jinqing.Basic Theory and Applications of ModernConcrete Structure.Beijing:China Architecture&Building Press,2008:284-288.(in Chinese))
[3]Zhao Q H,Astaneh A A.Cyclic behavior of traditionaland innovative composite shear walls[J].Journal ofStructural Engineering,2004,130(2):271-284.
[4]Kahn L F,Hanson R D.Infilled walls for earthquakestrengthening[J].Journal of Structural Engineering,1979,105(4):283-296.
[5]Kabele P,Takeuchi S,Inaba K.et al.Performance ofengineered cementitious composites in repair andretrofit:analytical estimates[C]//High PerformanceFiber Reinforced Composites(HPFRCC 3).Cachan,Cedex,France:RILEM Publications,1999:617-627.
[6]Kesner K E.Development of seismic strengthening andretrofit strategies for critical facilities using engineeredcementitious composite materials[D].Ithaca,NY:Cornell University,2003.
[7]郑宏.钢板-混凝土组合深梁:中国,ZL200620136074.9[P].2007-10-31.(ZHENG Hong.Steel plate deep beam:China,ZL 200620136074.9[P].2007-10-31.(in Chinese))
[8]GB 50010—2002混凝土结构设计规范[S].(GB50010—2002 Code for design of concrete structures[S].(in Chinese))
[9]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.
[2]郑宏,张维刚,杨飞颖.钢-混凝土组合深梁滞回性能分析[C]//宋玉普,贾金青.现代混凝土基本理论及工程应用:全国第十届混凝土结构基本理论及工程应用学术会议论文集.北京:中国建筑工业出版社,2008:284-288.(ZHENG Hong,ZHANG Weigang,YANG Feiying.Hysteretic behaviors of the steel-concrete composite deep beams[C]//SONG Yupu,JIA Jinqing.Basic Theory and Applications of ModernConcrete Structure.Beijing:China Architecture&Building Press,2008:284-288.(in Chinese))
[3]Zhao Q H,Astaneh A A.Cyclic behavior of traditionaland innovative composite shear walls[J].Journal ofStructural Engineering,2004,130(2):271-284.
[4]Kahn L F,Hanson R D.Infilled walls for earthquakestrengthening[J].Journal of Structural Engineering,1979,105(4):283-296.
[5]Kabele P,Takeuchi S,Inaba K.et al.Performance ofengineered cementitious composites in repair andretrofit:analytical estimates[C]//High PerformanceFiber Reinforced Composites(HPFRCC 3).Cachan,Cedex,France:RILEM Publications,1999:617-627.
[6]Kesner K E.Development of seismic strengthening andretrofit strategies for critical facilities using engineeredcementitious composite materials[D].Ithaca,NY:Cornell University,2003.
[7]郑宏.钢板-混凝土组合深梁:中国,ZL200620136074.9[P].2007-10-31.(ZHENG Hong.Steel plate deep beam:China,ZL 200620136074.9[P].2007-10-31.(in Chinese))
[8]GB 50010—2002混凝土结构设计规范[S].(GB50010—2002 Code for design of concrete structures[S].(in Chinese))
[9]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.
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