建筑结构学报2017，Vol.38Issue(6)：95-104,10.DOI:10.14006/j.jzjgxb.2017.06.011
Y形偏心支撑-高强钢框架结构抗震性能试验研究
Experimental study on seismic performance of high strength steel frames with Y-eccentric braces
摘要
Abstract
In order to research the seismic performance of high strength steel frames with Y-eccentric braces (Y-HSS-EBFs),the shake table test of a 1 ∶ 2 scaled 3-story Y-HSS-EBFs with redesigned links was carried out with El Centro wave,Taft wave and Lanzhou wave from frequent earthquake level of 7 degree intensity to rare earthquake level of 9 degree intensity.The dynamic properties,acceleration responses,displacement responses,strain responses and story shear force distribution,etc,were obtained from the test and compared with the pervious test results.The finite element model (FEM) of the test structure was established by ABAQUS and the numerical simulation of the test was carried out.The test results indicate that the structure is in elastic during the frequency earthquakes and only local damage appeares at the links.The lateral stiffness of the structure degrades obviously during the rare earthquakes but there is no dangerous collapse for the structure.The maximum inter-story drift ratio of the specimen during the frequent and rare earthquakes can meet the requirements on inter-story drift ratio limitation in the seismic design code of buildings.Links enter the plastic stage to dissipate earthquake energy while other structural members remain in elastic stage during rare earthquake.The results provided by the FE analysis show a good agreement with the test results.关键词
偏心支撑框架/高强钢/振动台试验/动力特性/抗震性能Key words
eccentrically braced frame/high strength steel/shake table test/dynamic property/seismic performance分类
建筑与水利引用本文复制引用
连鸣,苏明周..Y形偏心支撑-高强钢框架结构抗震性能试验研究[J].建筑结构学报,2017,38(6):95-104,10.基金项目
国家自然科学基金项目(51178382,51478380). （51178382,51478380）
