Role of concrete confinement of wide-flange structural steel shape in steel reinforced concrete columns under cyclic loading

被引：39

作者：

Chen, Cheng-Cheng ^{[1
]}

Chen, Chien-Chung ^{[2
]}

Thu Thuy Hoang ^{[3
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Construct Engn, Taipei 10607, Taiwan

[2] Purdue Univ Calumet, Dept Mech Engn, Hammond, IN 46323 USA

[3] Meinhardt Grp, 09-01 Surbana One, Singapore 150168, Singapore

来源：

ENGINEERING STRUCTURES | 2016年 / 110卷

关键词：

Encased composite member; SRC column; Plastic hinge rotation; Confinement reinforcement; Cyclic loading;

D O I：

10.1016/j.engstruct.2015.12.002

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this study, effects of wide-flange structural steel shapes on concrete confinement of steel reinforced concrete (SRC) columns were examined by conducting structural testing on six large-scale SRC columns under cyclic loading. Specifically, effects of the major- and minor-axis bending relative to the steel shape on the ductility and confinement effectiveness of SRC columns were investigated. Experimental results showed that concrete confinement of SRC columns were highly influenced by the bending direction. Details of the underlying confining mechanisms of SRC columns were uncovered. Findings from this study indicated that the required confinement reinforcement for the SRC columns subjected to major axis bending could be significantly reduced, compared to that of the SRC columns subjected to minor axis bending. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：79 / 87

页数：9

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