改进加盖板法用于D型偏心支撑结构的抗震性能试验研究

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英文篇名：Experimental study on seismic behavior of adding cover-plate protocol for D-type eccentrically braced steel frames 中文刊名：建筑结构 英文刊名：Building Structure 作者：潘秀珍 ; 郝际平 ; 王德法 ; 高杰 英文作者：Pan Xiuzhen~(1 ; 2) ; Hao Jiping~1 ; Wang Defa~2 ; Gao Jie~3(1 School of Civil Engineering ; Xi'an University of Architecture & Technology ; Xi'an 710055 ; China ; 2 Institute of Water Resources and Hydraulic Power ; Xi' an University of Technology ; Xi'an 710048 ; China ; 3 China United Northwest Institute for Engineering Design & Research ; Xi'an 710082 ; China) 中文关键词：D型偏心支撑 ; 耗能梁段 ; 盖板 英文关键词：D-type eccentrically braced ; link beams ; cover-plate 出版日期：2009-08-25 机构：西安建筑科技大学土木工程学院;西安理工大学水利水电学院;中联西北工程设计研究院; 年：2009 期：08 出版单位：建筑结构

摘要

提出一种新型剪切型耗能梁段与柱连接节点——改进加盖板方案,在满足梁端抗弯、抗剪承载力的同时,放松对耗能梁段的约束,使其充分发展剪切塑性变形,耗散更多的地震能量。采用1∶3缩尺模型,将该新型方案用于D型偏心支撑结构中,与传统的D型偏心支撑结构进行了对比试验,结果表明,采用改进加盖板方案的单斜杆偏心支撑结构具有很好的抗侧移刚度和变形能力,并具有足够的抗侧移能力;可以将耗能梁段从柱边移开,从而允许耗能梁段有较大转动,耗散更多的地震能量。同时也给出了改进加盖板方案的设计方法。
A new connection protocol,adding cover-plate between shear links and column,is suggested.It was used to enhance moment and shear carrying capacity of beam,to relax the restriction and assure the sufficiency development of plastic deformation of the link,and dissipate more earthquake energy.Considering the scale ratio of 1:3,the experimental data of new protocol and conventional connection were achieved by two specimens under cyclic loading.Results indicate that the new type of eccentrically braced steel frame have enough stiffness and deformation capacity,draw link beam away from flange of column,and dissipate more earthquake energy.Meanwhile,some design and amended measures were recommended for the new type protocol.

引文

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