框架-预应力摇摆墙结构抗震性能试验研究
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摘要
该文提出了一种框架-预应力摇摆墙新型结构形式,其中摇摆墙脚部混凝土采用橡胶块替代,并通过墙内预埋的无粘结预应力筋与基础进行贯穿连接,摇摆墙与主体框架则采用耗能连接件相连。通过一榀框架试件和一榀框架-预应力摇摆墙试件的拟静力试验,研究了试件的破坏形态、承载能力、刚度退化和耗能能力等抗震性能。结果表明:框架-预应力摇摆墙结构的破坏有效地集中在耗能连接件上,梁端、柱端以及梁柱节点区的破坏相对较轻;极限承载能力提升显著,相较对比框架提高了112.4%;耗能能力较对比框架大幅提升,且各层层间变形趋于均匀;耗能连接件发挥出了良好的延性变形能力,且施工方便、造价低,实现了可更换构件与摇摆结构的有机结合。
A new frame-prestressed rocking wall structure was presented in this paper, in which the foot area of the rocking wall was replaced by two rubber blocks. The wall was connected with the foundation by the embedded unbonded tendons and was connected to the columns of the frame with six I-shaped steel connectors.The seismic behavior of specimens including the failure mode, strength, stiffness degradation and energy dissipation capacity was studied through quasi-static tests of a frame specimen and a frame-prestressed rocking wall specimen. The results show that the deformation of the frame-prestressed rocking wall was effectively concentrated in the energy consumption connectors, while the damage to the ends of the beams and columns and the core area of beam-column joints was relatively light. The ultimate strength was greatly increased by 112.4%compared to the control frame. The hysteretic energy dissipation capacity was increased significantly, and the deformation of each story tended to be uniform to avoid story yielding mechanism. The I-type energy dissipation connectors had shown good ductility and deformability, which were replaceable and cheap. The combination of the replaceable components and the rocking wall structure was realized.
A new frame-prestressed rocking wall structure was presented in this paper, in which the foot area of the rocking wall was replaced by two rubber blocks. The wall was connected with the foundation by the embedded unbonded tendons and was connected to the columns of the frame with six I-shaped steel connectors.The seismic behavior of specimens including the failure mode, strength, stiffness degradation and energy dissipation capacity was studied through quasi-static tests of a frame specimen and a frame-prestressed rocking wall specimen. The results show that the deformation of the frame-prestressed rocking wall was effectively concentrated in the energy consumption connectors, while the damage to the ends of the beams and columns and the core area of beam-column joints was relatively light. The ultimate strength was greatly increased by 112.4%compared to the control frame. The hysteretic energy dissipation capacity was increased significantly, and the deformation of each story tended to be uniform to avoid story yielding mechanism. The I-type energy dissipation connectors had shown good ductility and deformability, which were replaceable and cheap. The combination of the replaceable components and the rocking wall structure was realized.
引文
[1]吕西林,周颖,陈聪.可恢复功能抗震结构新体系研究进展[J].地震工程与工程振动,2014,34(4):130-139.Lu Xilin,Zhou Ying,Chen Cong.Research progress on innovative earthquake-resilient structural systems[J].Earthquake Engineering and Engineering Dynamics,2014,34(4):130-139.(in Chinese)
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[4]吴守君,潘鹏,张鑫.框架-摇摆墙结构受力特点分析及其在抗震加固中的应用[J].工程力学,2016,33(6):54-60.Wu Shoujun,Pan Peng,Zhang Xin.Characteristics of frame rocking wall structure and its application in a seismic retrofit[J].Engineering Mechanics,2016,33(6):54-60.(in Chinese)
[5]曲哲,和田章,叶列平.摇摆墙在框架结构抗震加固中的应用[J].建筑结构学报,2011,32(9):11-19Qu Zhe,Wada Akira,Ye Lieping.Seismic retrofit of frame structures using rocking wall system[J].Journal of Building Structures,2011,32(9):11-19.(in Chinese)
[6]Zibaei H,Mokari J.Evaluation of seismic behavior improvement in RC MRFs retrofitted by controlled rocking wall systems[J].The Structural Design of Tall and Special Buildings,2014,23(13):995-1006.
[7]Grigorian C,Grigorian M.Performance control and efficient design of rocking-wall moment frames[J].Journal of Structural Engineering,2016,142(2):04015139.
[8]Grigorian M,Tavousi S.Innovations in rocking wall-frame systems-theory and development[J].International Journal of Advanced Structural Engineering,2017,9(3):205-217.
[9]Wu S,Pan P,Nie X,et al.Experimental investigation on reparability of an infilled rocking wall frame structure[J].Earthquake Engineering&Structural Dynamics,2017,46(15):2777-2792.
[10]曹海韵,潘鹏,吴守君,等.框架-摇摆墙结构体系中连接节点试验研究[J].建筑结构学报,2012,33(12):38-46.Cao Haiyun,Pan Peng,Wu Shoujun,et al.Experimental study of connections of frame-rocking wall system[J].Journal of Building Structures,2012,33(12):38-46.(in Chinese)
[11]曹海韵.框架摇摆墙结构抗震性能研究[D].北京:清华大学,2012.Cao Haiyun.Study on seismic performance of Frame-rocking wall structure[D].Beiing:Tsinghua University,2012.(in Chinese)
[12]杨树标,谢波涛,余丁浩,等.内嵌式框架-摇摆墙结构振动台试验研究分析[J].建筑科学,2014,30(9):31-35.Yang Shubiao,Xie Botao,Yu Dinghao,et al.Shaking table test analysis of frame structure with built-in rocking Wall[J].Building Science,2014,30(9):31-35.(in Chinese)
[13]杨树标,闫路路,贾剑辉,等.摇摆墙刚度对框架摇摆墙结构抗震性能的影响分析[J].世界地震工程,2014,30(4):27-33.Yang Shunbiao,Yan Lulu,Jia Jianhui,et al.Influence of rocking wall stiffness on seismic behavior of frame rocking wall structure[J].World Earthquake Engineering,2014,30(4):27-33.(in Chinese)
[14]杨树标,赵国琴,贾剑辉,等.内嵌式摇摆墙刚度对框架结构抗震性能的影响[J].山西建筑,2015,41(29):34-35.Yang Shubiao,Zhao Guoqin,Jia Jianhui,et al.The influence of the stiffness of the embedded rocking wall on the seismic performance of the frame structure[J].Shanxi Architecture,2015,41(29):34-35.(in Chinese)
[15]张富文,李向民,许清风,等.框架-摇摆墙结构抗震性能试验研究[J].建筑结构学报,2015,36(8):73-81.Zhang Fuwen,Li Xiangmin,Xu Qingfeng,et al.Experimental study on seismic behavior of framerocking wall structure[J].Journal of Building Structures,2015,36(8):73-81.(in Chinese)
[16]张富文,李向民,陈玲珠,等.一种框架摇摆墙结构的实现形式及其有限元分析[J].振动与冲击,2016,35(17):213-217.Zhang Fuwen,Li Xiangmin,Chen Lingzhu,et al.Design and finite element analysis for a new frame-rocking wall structure[J].Journal of Vibration and Shock,2016,35(17):213-217.(in Chinese)
[17]JGJ/T 101―2015,建筑抗震试验规程[S].北京:中国建筑工业出版社,2015.JGJ/T 101―2015,Specification of testing methods for earthquake resistant building[S].Beijing:China Architecture&Building Press,2015.(in Chinese)
[18]GB/T 50152―2012,混凝土结构试验方法标准[S].北京:中国建筑工业出版社,2012.GB/T 50152―2012,Testing methods of concrete structure[S].Beijing:China Architecture&Building Press,2012(in Chinese)
[2]周颖,吕西林.摇摆结构及自复位结构研究综述[J].建筑结构学报,2011,32(9):1-10.Zhou Ying,Lu Xilin.State-of-the-art on rocking and self-centering structures[J].Journal of Building Structures,2011,32(9):1-10.(in Chinese)
[3]张富文,许清风,李向民.摇摆墙结构体系研究进展[J].结构工程师,2015,31(6):224-231.Zhang Fuwen,Xu Qingfeng,Li Xiangmin.State-of-the-art on rocking wall structures[J].Structural Engineers,2015,31(6):224-231.(in Chinese)
[4]吴守君,潘鹏,张鑫.框架-摇摆墙结构受力特点分析及其在抗震加固中的应用[J].工程力学,2016,33(6):54-60.Wu Shoujun,Pan Peng,Zhang Xin.Characteristics of frame rocking wall structure and its application in a seismic retrofit[J].Engineering Mechanics,2016,33(6):54-60.(in Chinese)
[5]曲哲,和田章,叶列平.摇摆墙在框架结构抗震加固中的应用[J].建筑结构学报,2011,32(9):11-19Qu Zhe,Wada Akira,Ye Lieping.Seismic retrofit of frame structures using rocking wall system[J].Journal of Building Structures,2011,32(9):11-19.(in Chinese)
[6]Zibaei H,Mokari J.Evaluation of seismic behavior improvement in RC MRFs retrofitted by controlled rocking wall systems[J].The Structural Design of Tall and Special Buildings,2014,23(13):995-1006.
[7]Grigorian C,Grigorian M.Performance control and efficient design of rocking-wall moment frames[J].Journal of Structural Engineering,2016,142(2):04015139.
[8]Grigorian M,Tavousi S.Innovations in rocking wall-frame systems-theory and development[J].International Journal of Advanced Structural Engineering,2017,9(3):205-217.
[9]Wu S,Pan P,Nie X,et al.Experimental investigation on reparability of an infilled rocking wall frame structure[J].Earthquake Engineering&Structural Dynamics,2017,46(15):2777-2792.
[10]曹海韵,潘鹏,吴守君,等.框架-摇摆墙结构体系中连接节点试验研究[J].建筑结构学报,2012,33(12):38-46.Cao Haiyun,Pan Peng,Wu Shoujun,et al.Experimental study of connections of frame-rocking wall system[J].Journal of Building Structures,2012,33(12):38-46.(in Chinese)
[11]曹海韵.框架摇摆墙结构抗震性能研究[D].北京:清华大学,2012.Cao Haiyun.Study on seismic performance of Frame-rocking wall structure[D].Beiing:Tsinghua University,2012.(in Chinese)
[12]杨树标,谢波涛,余丁浩,等.内嵌式框架-摇摆墙结构振动台试验研究分析[J].建筑科学,2014,30(9):31-35.Yang Shubiao,Xie Botao,Yu Dinghao,et al.Shaking table test analysis of frame structure with built-in rocking Wall[J].Building Science,2014,30(9):31-35.(in Chinese)
[13]杨树标,闫路路,贾剑辉,等.摇摆墙刚度对框架摇摆墙结构抗震性能的影响分析[J].世界地震工程,2014,30(4):27-33.Yang Shunbiao,Yan Lulu,Jia Jianhui,et al.Influence of rocking wall stiffness on seismic behavior of frame rocking wall structure[J].World Earthquake Engineering,2014,30(4):27-33.(in Chinese)
[14]杨树标,赵国琴,贾剑辉,等.内嵌式摇摆墙刚度对框架结构抗震性能的影响[J].山西建筑,2015,41(29):34-35.Yang Shubiao,Zhao Guoqin,Jia Jianhui,et al.The influence of the stiffness of the embedded rocking wall on the seismic performance of the frame structure[J].Shanxi Architecture,2015,41(29):34-35.(in Chinese)
[15]张富文,李向民,许清风,等.框架-摇摆墙结构抗震性能试验研究[J].建筑结构学报,2015,36(8):73-81.Zhang Fuwen,Li Xiangmin,Xu Qingfeng,et al.Experimental study on seismic behavior of framerocking wall structure[J].Journal of Building Structures,2015,36(8):73-81.(in Chinese)
[16]张富文,李向民,陈玲珠,等.一种框架摇摆墙结构的实现形式及其有限元分析[J].振动与冲击,2016,35(17):213-217.Zhang Fuwen,Li Xiangmin,Chen Lingzhu,et al.Design and finite element analysis for a new frame-rocking wall structure[J].Journal of Vibration and Shock,2016,35(17):213-217.(in Chinese)
[17]JGJ/T 101―2015,建筑抗震试验规程[S].北京:中国建筑工业出版社,2015.JGJ/T 101―2015,Specification of testing methods for earthquake resistant building[S].Beijing:China Architecture&Building Press,2015.(in Chinese)
[18]GB/T 50152―2012,混凝土结构试验方法标准[S].北京:中国建筑工业出版社,2012.GB/T 50152―2012,Testing methods of concrete structure[S].Beijing:China Architecture&Building Press,2012(in Chinese)