湖南大学学报（自然科学版）2017，Vol.44Issue(11)：31-37,7.DOI:10.16339/j.cnki.hdxbzkb.2017.11.004
端部带肋方钢管混凝土柱抗震试验研究
Experimental Study on Seismic Behavior of Square Concrete-filled Steel Tube Column with End Ribs
摘要
Abstract
In order to improve the bearing capacity and ductility of square concrete-filled steel tube (CFST ) column ,this paper proposed a new structure scheme ,adding ribs at the end of CFST column . Three CFST columns with end ribs were designed and produced .Pseudo static test was conducted ,and seis-mic behaviors including the bearing capacity ,hysteresis curves ,skeleton curves and displacement ductility were obtained .Compared with the conventional CFT columns ,experimental results indicated that the hys-teretic loop curve of the test specimens dissipated large energy ,and the decline of the skeleton curve was not significant .The ultimate displacement increased obviously by 44 .4% ,65 .3% and 29 .3% ,respectively . The ductility increased by 27 .0% ,51 .3% and 6 .7% ,respectively .The CFST columns with ribs exhibited good energy dissipation capacity and their seismic performance was significantly improved with larger duc-tility .关键词
方钢管混凝土柱/端部带肋/拟静力试验/抗震性能Key words
square concrete-filled steel tube column/end ribs/pseudo static test/seismic behavior分类
建筑与水利引用本文复制引用
汪梦甫,杨冕..端部带肋方钢管混凝土柱抗震试验研究[J].湖南大学学报（自然科学版）,2017,44(11):31-37,7.基金项目
国家自然科学基金资助项目(51278181,51578225),National Natural Science Foundation of China(51278181,51578225) （51278181,51578225）
高等学校博士学科点专项科研基金资助项目(20120161110022),Research Fund for the Doctoral Program of Higher Education of China(20120161110022) （20120161110022）
