水平荷载下框架-密肋复合墙体的力法位移方程
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摘要
目的研究框架-密肋复合墙体的构造形式与受力特点及在水平荷载作用下其顶部位移的简化计算方法.方法以框架与复合墙的并联机制为协同工作模型,以框架结构的位移计算方法为依据,考虑弹性状态中后期填充砌块开裂情况,根据材料力学和结构力学基本理论提出框架-复合墙体的力法位移方程,并利用型钢混凝土外框柱-密肋复合墙的试验结果对位移方程进行验证.结果框架-复合墙体的力法位移方程与一般框架、混凝土墙位移方程有着良好的相容性;框架-复合墙体的剪切变形在总变形中所占比重较大,中高层框架-复合墙结构侧移曲线呈现明显的弯剪型特征.结论提供了一种框架-密肋复合墙体位移计算方法,可供该结构体系的实际工程设计参考.
According to the special forms and mechanical behavior of frame-composite walls,displacement calculation method for frame-composite walls under horizontal loads is proposed in this paper.The model of frames and composite walls in parallel is adopted for considering working together of them.Cracking of filling blocks at middle and end elastic stages is taken into account.Based on material and structure mechanics theories,the displacement calculation method of frame-composite walls is derived from that of frame structures.The calculation results of the proposed method agree well with the test results of multi-ribbed composite wall with edge frame columns reinforced by steel.The displacement calculation method of frame-composite walls is compatible with that of frames and that of RC shear walls.The shear deformation of the framecomposite wall contributes most to the whole deformation.And the lateral displacement curves of middle to high-rise frame-composite wall structures are characterized by flexure-shear deformation.The proposed displacement calculation method for frame-composite wall structures can be used as a reference for structural design.
According to the special forms and mechanical behavior of frame-composite walls,displacement calculation method for frame-composite walls under horizontal loads is proposed in this paper.The model of frames and composite walls in parallel is adopted for considering working together of them.Cracking of filling blocks at middle and end elastic stages is taken into account.Based on material and structure mechanics theories,the displacement calculation method of frame-composite walls is derived from that of frame structures.The calculation results of the proposed method agree well with the test results of multi-ribbed composite wall with edge frame columns reinforced by steel.The displacement calculation method of frame-composite walls is compatible with that of frames and that of RC shear walls.The shear deformation of the framecomposite wall contributes most to the whole deformation.And the lateral displacement curves of middle to high-rise frame-composite wall structures are characterized by flexure-shear deformation.The proposed displacement calculation method for frame-composite wall structures can be used as a reference for structural design.
引文
[1]郭猛,姚谦峰.框架-密肋复合墙结构新体系研究[J].地震工程与工程振动,2009,29(5):73-78.(Guo Meng,Yao Qianfeng.Research on the new system of frame-multi-ribbed composite wall struc-ture[J].Earthquake Engineering and Engineering Vibration,2009,29(5):73-78.)
[2]Yao Qianfeng,Zhang Xufeng,Huang Wei.Study on thermal-insulating and link details of a new energy-saving composite wall structure[J].Journal of Har-bin Institute of Technology,2007,14(s):435-438.
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[6]Zhang Yin,Yao Qianfeng,Ding Yonggang.Study onenergy-saving residential building structures of multi-ribbed composite walls with high performance con-crete[C].New York:EETC,2005:444-450.
[7]姚谦峰,黄炜,田洁,等.密肋复合墙体受力机理及抗震性能试验研究[J].建筑结构学报,2004,25(6):67-74.(Yao Qianfeng,Huang Wei,Tian Jie,et at.Experi-mental analyses of mechanical characteristics and seismic performance of multi-ribbed panel wall[J].Journal of Building Structures,2004,25(6):67-74.)
[8]包世华,张铜生.高层建筑结构设计和计算[M].北京:清华大学出版社,2005.(Bao Shihua,Zhang Tongsheng.Design and analysis of tall-building structure[M].Beijing:Tsinghua Uni-versity Press,2005.)
[9]Chaker A A,Cherifati A.Influence of masonry infill panels on the vibration and stiffness characteristics of RC frame buildings[J].Earthquake Engineering and Structural Dynamics,1999,28(10):1061-1065.
[10]Asteris P G.Lateral stiffness of brick masonry in-filled plane frames[J].Journal of Structural Engi-neering,2003,129(8):1071-1079.
[11]Ghassan A C,Mohsen L,Steve S.Behavior of ma-sonry infilled nonductile reinforced concrete frames[J].ACI Structure Journal,2002,136(4):347-356.
[12]刘玉姝,李国强.带填充墙钢框架结构抗侧力性能试验及理论研究[J].建筑结构学报,2005,26(3):78-84.(Liu Yushu,Li Guoqiang.Experimental and theoreti-cal research on lateral load resistance of steel frames with infilled walls[J].Journal of Building Struc-tures,2005,26(3):78-84.)
[2]Yao Qianfeng,Zhang Xufeng,Huang Wei.Study on thermal-insulating and link details of a new energy-saving composite wall structure[J].Journal of Har-bin Institute of Technology,2007,14(s):435-438.
[3]Xia Lei,Yao Qianfeng,Chang Peng,et al.Seismic safety evaluation analysis of a new building structure with multi-ribbed composite wall structure[C].In-ternational Conference on Earthquake Engineering:the1st Anniversary of Wenchuan Earthquake,Cheng-du,China,2009:325-328.
[4]郭猛,姚谦峰,黄炜,等.水平荷载作用下密肋复合墙结构的变形计算[J].世界地震工程,2009,25(4):12-17.(Guo Meng,Yao Qianfeng,Huang Wei,et al.The calculation of deformation for a multi-ribbed com-posite wall structure under the horizontal loads[J].World Earthquake Engineering,2009,25(4):12-17.)
[5]何明胜.型钢混凝土边框柱密肋复合墙体抗震性能及设计理论研究[D].西安:西安建筑科技大学土木工程学院,2008.(He Mingsheng.Research of seismic performance and design theory of multi-ribbed slab wall with SRC outer column[D].Xi'an:School of Civil Engineering and Hydraulic Engineering,Xi'an University of Ar-chitecture and Technology,2008.)
[6]Zhang Yin,Yao Qianfeng,Ding Yonggang.Study onenergy-saving residential building structures of multi-ribbed composite walls with high performance con-crete[C].New York:EETC,2005:444-450.
[7]姚谦峰,黄炜,田洁,等.密肋复合墙体受力机理及抗震性能试验研究[J].建筑结构学报,2004,25(6):67-74.(Yao Qianfeng,Huang Wei,Tian Jie,et at.Experi-mental analyses of mechanical characteristics and seismic performance of multi-ribbed panel wall[J].Journal of Building Structures,2004,25(6):67-74.)
[8]包世华,张铜生.高层建筑结构设计和计算[M].北京:清华大学出版社,2005.(Bao Shihua,Zhang Tongsheng.Design and analysis of tall-building structure[M].Beijing:Tsinghua Uni-versity Press,2005.)
[9]Chaker A A,Cherifati A.Influence of masonry infill panels on the vibration and stiffness characteristics of RC frame buildings[J].Earthquake Engineering and Structural Dynamics,1999,28(10):1061-1065.
[10]Asteris P G.Lateral stiffness of brick masonry in-filled plane frames[J].Journal of Structural Engi-neering,2003,129(8):1071-1079.
[11]Ghassan A C,Mohsen L,Steve S.Behavior of ma-sonry infilled nonductile reinforced concrete frames[J].ACI Structure Journal,2002,136(4):347-356.
[12]刘玉姝,李国强.带填充墙钢框架结构抗侧力性能试验及理论研究[J].建筑结构学报,2005,26(3):78-84.(Liu Yushu,Li Guoqiang.Experimental and theoreti-cal research on lateral load resistance of steel frames with infilled walls[J].Journal of Building Struc-tures,2005,26(3):78-84.)
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