设置局部粘滞消能支撑的框架节点抗震试验研究  

Experimental study on RC beam-column joint equipped with partially energy dissipating braces

作　　者：吴波[1] 蒋小青[1] 林少书[2] 钟秀葵[2] 

机构地区：[1]华南理工大学亚热带建筑科学国家重点实验室,广东广州510640 [2]香港理工大学土木与结构工程系

出　　处：《地震工程与工程振动》2007年第6期223-229,共7页Earthquake Engineering and Engineering Dynamics

基　　金：Hong Kong Research Grants Council资助(BQ-576)

摘　　要：提出了具有位移放大效应的局部粘滞消能支撑的构成及工作原理,开展了设置该类支撑的钢筋混凝土梁-柱节点的反复加载试验,初步考察了节点的抗震性能,并通过对比试验与常规钢筋混凝土梁-柱节点进行了比较。研究结果表明,安装该类支撑后节点的耗能能力明显提高,梁端位移幅值较大时提高幅度可达200%以上,大大改善了节点的抗震性能。The composition and work principle of a new kind of partially energy dissipating brace （PEDB） are presented. A seismic test is carried out for a beam-column joint model equipped with PEDBs, and the seismic properties of this joint model are discussed. For comparison, one beamcolumn joint model without PEDB is also tested, and the influence of PEDBs on the seismic performance of beam-column joints is analyzed. Test results show that the energy dissipating capacity of the joint model with PEDBs increases significantly （e. g. , more than 200% ） in comparison with that of the joint model without PEDB, so the seismic performance of the former joint is much better than that of the latter joint.

关 键 词：位移放大 粘滞消能器 支撑 节点 抗震 

分 类 号：P315.976[天文地球—地震学]