小跨高比连梁混合暗支撑高阻尼混凝土联肢剪力墙试验研究
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摘要
混合暗支撑高阻尼混凝土联肢剪力墙是一种新型延性双肢剪力墙,它将暗支撑引入双肢墙的两个墙肢,将内置带剪力钉钢板连梁作为剪力墙洞口连梁,墙身由高阻尼混凝土浇筑而成。本文对这种新型联肢剪力墙结构进行了低周反复加载实验与数值模拟,较系统地分析了该新型剪力墙结构的承载力、延性、耗能、破坏机制、破坏特征以及刚度衰减过程等性能。结果表明:与现有暗支撑混凝土联肢剪力墙相比,混合暗支撑高阻尼混凝土联肢剪力墙开裂强度、极限承载力、耗能能力及变形能力均有一定程度的提高,显示了良好的抗震性能;当剪力墙连梁跨高比越小,混合暗支撑高阻尼混凝土剪力墙的抗震性能越好。
High damping concrete coupled shear wall with mixed concealed bracings is a new type of energy dissipation shear wall.This shear wall consists of three parts: shear walls with concealed bracings,coupling beams with concealed steel plate with shear stud,and cast-in-situ high damping concrete wall limb.In this paper,experimental study and numerical simulation of seismic performance of the proposed shear wall are carried out,and also the bearing capacity,ductility,energy dissipation,failure mechanism,failure characteristics and stiffness attenuation performance of the proposed shear wall are analyzed systematically.It is shown that,compared with the existing concrete coupled shear wall with concealed bracings,the cracking load,the ultimate bearing capacity,the energy dissipation capacity and the deformation capacity of the new type of coupled shear wall have been improved to a certain extent,and the effectiveness of the innovative coupled shear wall is increased with the reduction of span depth ratios of coupling beams.
High damping concrete coupled shear wall with mixed concealed bracings is a new type of energy dissipation shear wall.This shear wall consists of three parts: shear walls with concealed bracings,coupling beams with concealed steel plate with shear stud,and cast-in-situ high damping concrete wall limb.In this paper,experimental study and numerical simulation of seismic performance of the proposed shear wall are carried out,and also the bearing capacity,ductility,energy dissipation,failure mechanism,failure characteristics and stiffness attenuation performance of the proposed shear wall are analyzed systematically.It is shown that,compared with the existing concrete coupled shear wall with concealed bracings,the cracking load,the ultimate bearing capacity,the energy dissipation capacity and the deformation capacity of the new type of coupled shear wall have been improved to a certain extent,and the effectiveness of the innovative coupled shear wall is increased with the reduction of span depth ratios of coupling beams.
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.WANG Mengfu,SONG Xingyu.Coupled shear wall with enhanced concealed bracings,China,ZL2008200535764(P),2009.(in Chinese)
[2]ACI(2002).ACI 318-02.Building Code Requirements for Structural Concrete and Commentary[S].American Concrete Institute Committee318,Farmington Hill,Michigan,U.S.A.
[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.JGJ3-2010 Technical specification for concrete structures of tall building[S].Beijing:China Architecture&Building Press,2011.(in Chinese)
[4]欧进萍,关新春.土木工程的智能结构体系研究与发展[J].地震工程与工程振动,1999,19(2):21-28.OU Jinping,GUAN Xinchun.State-of-the-art of smart structural systems in civil engineering[J].Journal of Earthquake Engineering and Engineer-ing Vibration.1999,19(2):21-28.(in Chinese)
[5]Wong W Cz,Fang Ping,Pan J K.Polymer effects on the vibration damping behavior of cement[J].Journal of Materals in Civil Engineering.ASCE,2003,554-556.
[6]董宏英,曹万林,胡国振,等.不同连梁跨高比带暗支撑双肢剪力墙抗震性能试验研究[J].地震工程与工程振动,2005,25(1):92-96.DONG Hongying,CAO Wanlin,HU Guozhen,et al.Experimental study on seismic performance of RC coupled shear wall with concealed bracings indifferent span-height-ratio of lintel beam[J].Journal of Earthquake Engineering and Engineering Vibration,2005,25(1):92-96.(in Chinese)
[7]董宏英.带暗支撑双肢剪力墙抗震性能试验及设计理论研究[D].北京:北京工业大学,2002.DONG Hongying.Design theory and experiment study on seismic behavior of RC coupled shear wall with Concealed Bracings[D].Beijing:BeijingUniversity of Technology,2002.(in Chinese)
[8]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 Mengfu,SONG Xingyu.Experimental research on damping property of high damping concrete members[J].Journal of Vibration andShock,2012,31(11):173-179.(in Chinese)
[9]梁兴文,钱磊,谭丽娜.基于ABAQUS的混凝土损伤塑性本构关系研究[A].第八届全国地震工程学术会议论文集(Ⅱ)[C].2010.LIANG Xingwen,QIAN Lei,TAN Lina.Investigation on the constitutive models of elastoplasticity coupled with damage for concrete based onABAQUS[A].Proceedings of the 8th China Conference on Earthquake Engineering(Ⅱ)[C].2010.(in Chinese)
[2]ACI(2002).ACI 318-02.Building Code Requirements for Structural Concrete and Commentary[S].American Concrete Institute Committee318,Farmington Hill,Michigan,U.S.A.
[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.JGJ3-2010 Technical specification for concrete structures of tall building[S].Beijing:China Architecture&Building Press,2011.(in Chinese)
[4]欧进萍,关新春.土木工程的智能结构体系研究与发展[J].地震工程与工程振动,1999,19(2):21-28.OU Jinping,GUAN Xinchun.State-of-the-art of smart structural systems in civil engineering[J].Journal of Earthquake Engineering and Engineer-ing Vibration.1999,19(2):21-28.(in Chinese)
[5]Wong W Cz,Fang Ping,Pan J K.Polymer effects on the vibration damping behavior of cement[J].Journal of Materals in Civil Engineering.ASCE,2003,554-556.
[6]董宏英,曹万林,胡国振,等.不同连梁跨高比带暗支撑双肢剪力墙抗震性能试验研究[J].地震工程与工程振动,2005,25(1):92-96.DONG Hongying,CAO Wanlin,HU Guozhen,et al.Experimental study on seismic performance of RC coupled shear wall with concealed bracings indifferent span-height-ratio of lintel beam[J].Journal of Earthquake Engineering and Engineering Vibration,2005,25(1):92-96.(in Chinese)
[7]董宏英.带暗支撑双肢剪力墙抗震性能试验及设计理论研究[D].北京:北京工业大学,2002.DONG Hongying.Design theory and experiment study on seismic behavior of RC coupled shear wall with Concealed Bracings[D].Beijing:BeijingUniversity of Technology,2002.(in Chinese)
[8]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 Mengfu,SONG Xingyu.Experimental research on damping property of high damping concrete members[J].Journal of Vibration andShock,2012,31(11):173-179.(in Chinese)
[9]梁兴文,钱磊,谭丽娜.基于ABAQUS的混凝土损伤塑性本构关系研究[A].第八届全国地震工程学术会议论文集(Ⅱ)[C].2010.LIANG Xingwen,QIAN Lei,TAN Lina.Investigation on the constitutive models of elastoplasticity coupled with damage for concrete based onABAQUS[A].Proceedings of the 8th China Conference on Earthquake Engineering(Ⅱ)[C].2010.(in Chinese)
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