半刚性连接钢框架-非加劲钢板剪力墙结构性能研究
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摘要
半刚性连接钢框架-非加劲钢板剪力墙结构弥补了传统抗弯钢框架侧向刚度不足的缺点,为采用更加经济的半刚性节点提供了可能。为研究不同梁柱连接刚度对双体系结构抗震性能的影响,完成了3个单跨两层不同梁柱连接刚度试件的水平低周往复加载试验研究,系统分析了三者的整体性能和破坏模态,拟从承载力、刚度、延性、耗能、整体性能和节点性能六个方面对双体系的节点刚度与墙体的匹配效果进行评价。结果表明:在半刚性框架内设置钢板墙能较大程度提高结构的极限承载力与侧向刚度;结构具有理想的屈服顺序,内填板在加载初期非常有效。屈服区域延伸至整个墙体时,附加荷载将基本上由边缘构件承担,试件破坏主要由内填板的屈服和框架柱的弯扭失稳控制;节点刚度退化小,且内填板的设置缓解了节点区自身的延性要求,梁柱连接形式对试件的抗侧刚度和整体强度的影响不大,降低连接刚度有利于提高试件延性和耗能能力。
Steel plate shear walls increase the lateral stiffness of steel frames,provides the opportunity to use semi rigid connections which is more economical.In order to study the seismic behavior of the dual system,a two-storey one bay steel frame with varying beam-to-column connections and steel plate shear wall structure specimens was tested under cyclic load,general behavior and failure mode of the structure were obtained,and the strength,stiffness,ductility and energy dissipation,general behavior and joint response of the model were analyzed.The interactive effect of the joint stiffness and steel plate of the structure were analyzed.The analytical results show that the steel plate shear wall could improve the lateral bearing capacity,lateral stiffness and high safety factor of the semi-rigid composite steel frame.The dual systems should have desirable sequences of yielding.The infill plates in the structure are very effective in the initial stages of loading,and when yield zones spread throughout the wall,additional applied loads are essentially carried by the frame members.Joint connection stiffness impact on the overall strength and lateral stiffness can be ignored,and reduction of rotational stiffness of the connections would improve performance of the whole structure.
Steel plate shear walls increase the lateral stiffness of steel frames,provides the opportunity to use semi rigid connections which is more economical.In order to study the seismic behavior of the dual system,a two-storey one bay steel frame with varying beam-to-column connections and steel plate shear wall structure specimens was tested under cyclic load,general behavior and failure mode of the structure were obtained,and the strength,stiffness,ductility and energy dissipation,general behavior and joint response of the model were analyzed.The interactive effect of the joint stiffness and steel plate of the structure were analyzed.The analytical results show that the steel plate shear wall could improve the lateral bearing capacity,lateral stiffness and high safety factor of the semi-rigid composite steel frame.The dual systems should have desirable sequences of yielding.The infill plates in the structure are very effective in the initial stages of loading,and when yield zones spread throughout the wall,additional applied loads are essentially carried by the frame members.Joint connection stiffness impact on the overall strength and lateral stiffness can be ignored,and reduction of rotational stiffness of the connections would improve performance of the whole structure.
引文
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[18]JGJ 82—1991钢结构高强度螺栓连接的设计、施工及验收规程[S]
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[2]Abolmaali A,Kukreti A,Motahari A,et al.Energy dissipationcharacteristics of semi-rigid connections[J].Journal ofConstructional Steel Research,2009,65(5):1187-1197
[3]Bernuzzi C,Zandonini R,Zanon P.Experimental analysisand modelling of semi-rigid steel joints under cyclic reversalloading[J].Journal of Constructional Steel Research,1996,38(2):95-123
[4]Elgaaly M,Liu Yinbo.Analysis of thin-steel-plate shearwalls[J].Journal of Structural Engineering,1997,123(11):1487-1496
[5]解琦,郝际平,于金光.半刚性框架-钢板剪力墙体系性能研究[J].建筑结构学报,2010,31(增1):12-17(XieQi,Hao Jiping,Yu Jinguang.Behavior of semi-rigid framewith steel plate shear wall[J].Journal of BuildingStructures,2010,31(S1):12-17(in Chinese))
[6]郝际平,郭宏超,解崎,等.半刚性连接钢框架-钢板剪力墙结构抗震性能试验研究[J].建筑结构学报,2011,32(2):33-40(Hao Jiping,Guo Hongchao,Xie Qi,et al.Seismic performance of composite steel frame withsteel plate shear walls[J].Journal of Building Structures,2011,32(2):33-40(in Chinese))
[7]Vian D,Bruneau M,Tsai K C,et al.Special perforatedsteel plate shear walls with reduced beam section anchorbeams.I:experimental investigation[J].Journal ofStructural Engineering,2009,135(3):211-220
[8]Qu B,Bruneau M,Lin C H,et al.Testing of full-scaletwo-story steel plate shear wall with reduced beam sectionconnections and composite floors[J].Journal of StructuralEngineering,2008,134(3):364-373
[9]Habashi H R,Alinia M M.Characteristics of the wall-frame interaction in steel plate shear walls[J].Journal ofConstructional Steel Research,2010,66(2):150-158
[10]郭彦林,陈国栋,缪友武.加劲钢板剪力墙弹性抗剪屈曲性能研究[J].工程力学,2006,23(2):84-91,59(GuoYanlin,Chen Guodong,Miao Youwu.Elastic bucklingbehavior of steel plate shear wall with cross or diagonalstiffeners[J].Engineering Mechanics,2006,23(2):84-91,59(in Chinese))
[11]Caccese V,Elgaaly M,Chen R.Experimental study ofthin steel-plate shear walls under cyclic load[J].Journalof Structural Engineering,1993,119(2):573-587
[12]Alinia M M,Dastfan M.Behaviour of thin steel plate shearwalls regarding frame members[J].Journal ofConstructional Steel Research,2006,62(7):730-738
[13]Sabouri-Ghomi S,Gholhaki M.Tests of two three-storyductile steel plate shear walls[C]//Proceedings of the2008 Structures Congress.US:ASCE,2008
[14]于金光,郝际平,张文强,等.无侧移半刚性框架柱的稳定分析[J].世界地震工程,2010,26(3):102-108(YuJinguang,Hao Jiping,Zhang Wenqiang,et al.Stabilityanalysis for semi-rigid jointed and braced steel frames[J].World Earthquake Engineering,2010,26(3):102-108(inChinese))
[15]JGJ 101—1996建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997(JGJ 101—1996 Specification oftesting methods for earthquake resistant building[S].Beijing:China Architecture&Building Press,1997(inChinese))
[16]GB/T 228—2002金属材料室温拉伸试验方法[S].北京:中国标准出版社,2002(GB/T 228—2002 Metallicmaterials-tensile testing at ambient temperature[S].Beijing:Standards Press of China,2002(in Chinese))
[17]GB/T 2975—1998钢及钢产品力学性能试验取样位置及试样制备[S].北京:中国标准出版社,1999(GB/T2975—1998 Steel and steel products—localtion andpreparation of test pieces for mechanical testing[S].Beijing:Standards Press of China,1999(in Chinese))
[18]JGJ 82—1991钢结构高强度螺栓连接的设计、施工及验收规程[S]
[19]JGJ 99—1998高层民用建筑钢结构技术规程[S].北京:中国建筑工业出版社,1998(JGJ 99—1998 Technicalspecification for steel structure of tall buildings[S].Beijing:China Architecture&Building Press,1998(inChinese))
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