偏心水平荷载下内藏钢桁架开洞混凝土核心筒抗震研究
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摘要
对两个1/6缩尺的开洞核心筒结构模型进行了偏心水平荷载作用下的低周反复荷载试验研究,其中包括一个普通开洞混凝土核心筒和一个内藏钢桁架开洞混凝土组合核心筒。在试验的基础上,对比分析了两个试件的承载力、刚度、延性、滞回特性、耗能能力、破坏特征以及抗震机理。试验研究表明,在偏心水平荷载作用下,内藏钢桁架开洞混凝土组合核心筒比普通开洞混凝土核心筒抗震能力显著提高。
Two core walls on the scale of 1/6 including a normal reinforced concrete perforated core wall and a reinforced concrete composite perforated core wall with concealed steel truss were designed.The experimental study on the seismic behavior of two core walls subjected to eccentric horizontal loading was carried out.Load-carrying capacity,stiffness,ductility,hysteretic behavior,energy dissipation and failure mechanism of the core walls were discussed.The test results show that the seismic performance of the core walls is improved greatly by the concealed steel truss.
Two core walls on the scale of 1/6 including a normal reinforced concrete perforated core wall and a reinforced concrete composite perforated core wall with concealed steel truss were designed.The experimental study on the seismic behavior of two core walls subjected to eccentric horizontal loading was carried out.Load-carrying capacity,stiffness,ductility,hysteretic behavior,energy dissipation and failure mechanism of the core walls were discussed.The test results show that the seismic performance of the core walls is improved greatly by the concealed steel truss.
引文
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[2]曹万林,董宏英,胡振国,等.钢筋混凝土带暗支撑双肢剪力墙抗震性能试验研究[J].建筑结构学报,2004,25(3):22-28.
[3]曹万林,张建伟,田宝发.带暗支撑剪力墙体系抗震研究及应用[J].第十三届全国结构工程学术会议特邀报告,工程力学(增刊),2004,10:1-12.
[4]曹万林,黄选明,卢智成,等.钢筋混凝土带暗支撑核心筒体抗震性能试验研究[J].地震工程与工程振动,2005,25(3):81-86.
[5]龚炳年,郝锐坤.钢-混凝土混合结构模型动力特性的试验研究[J].建筑结构学报,1995,16(3):37-43.
[6]刘坚,黄襄云,李开禧.基于超级单元的钢-混凝土混合结构动力特性及地震反应研究[J].地震工程与工程振动,2003,23(l):54-58.
[7]Morino S.,Recent developments in hybrid structures in Japan-research,design and construction[J].Engineering Structures,1998,20(4-6):336-346.
[8]王志浩,方鄂华,钱稼如.钢骨混凝土剪力墙的抗弯性能[J].建筑结构,1998,28(2):13-16.
[9]方鄂华,叶列平.钢骨混凝土剪力墙设计[J].建筑结构,1999,12:57-59.
[10]Elgaaly M,Caccesse V.Steel plate walls[C]//Proc.of the 1990 Nat.Steel Construction Conf.Chicago:American Inst.of Steel Constr.(AISC),Chicago,III 44.1-4.26.
[11]Drive,Robert G,Kulak,Geoffrey L.et al.Cyclic test of four-story steel Plate shear wall[J].Journal of Structure Engineering,1998,124(2):112-120.
[12]Anwar Hossain,K M,Wright,HD.Experimental and theoretical behavior of composite walling under in-plane shear[J].Journal of Construc-tional Steel Research,2004,60(1):59-83.
[13]中国建筑科学研究院.JGJ3-2002,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,2002.
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