Experimental investigation and design of thin-walled concrete-filled steel tubes subject to bending

被引：54

作者：

Jiang, Ao-yu ^{[1
]}

Chen, Ju ^{[1
]}

Jin, Wei-liang ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Civil Engn, Hangzhou, Zhejiang, Peoples R China

来源：

THIN-WALLED STRUCTURES | 2013年 / 63卷

基金：

中国国家自然科学基金;

关键词：

Bending test; Design; Experimental investigation; Local buckling; Thin-walled concrete-filled steel tube; BOX COLUMNS; STRENGTH; BEHAVIOR;

D O I：

10.1016/j.tws.2012.10.008

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A series of bending tests of thin-walled concrete-filled steel tubes (CFST) were presented in this study. A total of 4 specimens were tested, two square specimens and two rectangular specimens, with width to wall thickness ratio ranging from 50 to 100. The load-displacement curves, failure mode and ultimate capacity of test specimens were obtained. An analytical model was developed for the thin-walled CFSTs subjected to bending. Material properties of confined concrete, corner strength enhancement of cold-formed steel sections, residual stresses and plate local buckling were considered in the developed model. The proposed model was able to predict the behavior and strengths of test specimens with reasonable accuracy. In addition, the suitability of current AISC standard, Eurocode 4 and Han's model for thin-walled CFSTs subjected to bending was also evaluated. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：44 / 50

页数：7

共 22 条

[1] Material properties models for analysis of cold-formed steel members [J].

AbdelRahman, N ;

Sivakumaran, KS .

JOURNAL OF STRUCTURAL ENGINEERING-ASCE, 1997, 123 (09) :1135-1143

[2]

[Anonymous], 2010, Specification for Structural Steel Buildings

[3]

[Anonymous], 1997, R755 DEP CIV ENG RES

[4]

*AS, 1991, 1391 AS STAND ASS AU

[5]

Bridge R., 1997, COMPOSITE CONSTRUCTI, P29

[6] Behaviour of thin-walled steel box sections with or without internal restraint [J].

Bridge, RQ ;

O'Shea, MD .

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 1998, 47 (1-2) :73-91

[7]

*BRIT STAND I, 1994, 1994112004 BS EN BRI

[8]

Bryan G.H., 1891, STABILITY PLANE PLAT

[9] Concrete-filled cold-formed circular steel tubes subjected to variable amplitude cyclic pure bending [J].

Elchalakani, Mohamed ;

Zhao, Xiao-Ling .

ENGINEERING STRUCTURES, 2008, 30 (02) :287-299

[10] STRENGTH OF CONCRETE-FILLED THIN-WALLED STEEL BOX COLUMNS - EXPERIMENT [J].

GE, HB ;

USAMI, T .

JOURNAL OF STRUCTURAL ENGINEERING-ASCE, 1992, 118 (11) :3036-3054

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