重庆大学学报2018，Vol.41Issue(1)：17-29,13.DOI:10.11835/j.issn.1000-582X.2018.01.003
变截面平缀管式钢管混凝土格构柱的抗震性能
Seismic performance of variable cross-sectional concrete filled steel tubular laced columns with flat lacing tubes
摘要
Abstract
A finite element analysis model of variable cross-sectional concrete-filled steel tubular(CFST) laced column with flat lacing tubes is built with universal program of OpenSEES,and the calculating results of specimen obtained by OpenSEES agree well with the quasi-static test results.The seismic performance of four-element variable cross-sectional CFST laced columns with flat lacing tubes is researched with calculation parameter of column slope,including the rules on energy dissipation capacity,skeleton curve,structure ductility,and stiffness degradation of elements,and these calculation results are compared with the research results of uniform cross-sectional CFST laced columns.And the influence of axial compression ratio,column height (slenderness ratio),vertical spacing of flat lacing tubes,steel ratio of longitudinal element,diameter ratio of lacing tubes to longitudinal tubes,yield strength of steel,concrete strength and other structural parameters on seismic performance of variable cross-sectional CFST laced columns with flat lacing tubes are investigated.It's hoped that the results can provide reference for the improvement of CFST calcalation theory and engineering application of variable cross-sectional CFST laced column piers.关键词
变截面/平缀管/钢管混凝土/格构柱/抗震性能Key words
variable cross-section/flat lacing tube/concrete-filled steel tube (CFST)/laced column/seismic performance分类
建筑与水利引用本文复制引用
欧智菁,陈盛富,袁辉辉,吴庆雄..变截面平缀管式钢管混凝土格构柱的抗震性能[J].重庆大学学报,2018,41(1):17-29,13.基金项目
国家自然科学基金资助项目(51408128,51508104) （51408128,51508104）
福建省高校新世纪优秀人才支持计划资助项目(GY-Z15108).Supported by National Natural Science Foundation of China (51408128,51508104) and Program for New Century Excellent Talents in Fujian Province University(GY-Z15108). （GY-Z15108）
