Behavior of rectangular concrete-filled high-strength steel tubular columns with different aspect ratio

被引：68
作者：
Du, Yansheng [2 ,3 ]
Chen, Zhihua [1 ,2 ]
Yu, Yujie [2 ]
机构：
[1] State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Dept Civil Engn, Tianjin 300072, Peoples R China
[3] Natl Univ Singapore, Dept Civil & Environm Engn, Singapore 117576, Singapore
来源：
THIN-WALLED STRUCTURES | 2016年 / 109卷
基金：
中国国家自然科学基金;
关键词：
Rectangular CPT column; High-strength steel; Width-to-thickness ratio; Design method; Aspect ratio; BOX COLUMNS; COMPOSITE;
D O I：
10.1016/j.tws.2016.10.005
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
High-strength steel members are susceptible to local buckling. Rectangular concrete-filled tubular (CFT) columns could make full use of high-strength steel by restraining its buckling inward. This paper reports an experimental investigation of rectangular CFT columns using high-strength steel. Three current design codes are evaluated with the experiments both from this study and the previous literature. It indicates that EC4, AISC360 and GB50936 tend to be unsafe incorporating high-strength steel and high aspect (h/b) ratio. Design recommendations of the width-to-thickness (h/t) ratio are proposed to account for the different h/b ratio effects for rectangular CFT columns.
引用
收藏
页码：304 / 318
页数：15
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