Behavior and calculation on concrete-filled steel CHS (circular hollow section) beam-columns

被引：57
|
作者：
Han, LH
Yao, GH
Zhao, XL
机构：
[1] Fuzhou Univ, Coll Civil Engn & Architecture, Fuzhou 350002, Fujian Province, Peoples R China
[2] Monash Univ, Dept Civil Engn, Clayton, Vic 3168, Australia
来源：
STEEL AND COMPOSITE STRUCTURES | 2004年 / 4卷 / 03期
关键词：
composite columns; beam-columns; composite actions; constraining factor; concrete; design; hollow sections; columns; member capacity;
D O I：
10.12989/scs.2004.4.3.169
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A mechanics model is developed in this paper for concrete-filled steel CHS (circular hollow section) beam-columns. A unified theory is described where a confinement factor () is introduced to describe the composite action between the steel tube and the filled concrete. The predicted load versus deformation relationship is in good agreement with test results. The theoretical model was used to investigate the influence of important parameters that determine the ultimate strength of concrete-filled steel CHS beam-columns. The parametric and experimental studies provide information for the development of formulas for the calculation of the ultimate strength of the composite beam-columns. Comparisons are made with predicted beam-columns strengths using the existing codes, such as LRFD-AISC-1999, AIJ-1997, BS5400-1979 and EC4-1994.
引用
收藏
页码：169 / 188
页数：20
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