Flexural behavior of concrete-filled aluminum alloy circular hollow section tubes

被引：40

作者：

Chen, Yu ^{[1
,2
]}

Feng, Ran ^{[3
]}

Gong, Wenzhi ^{[4
]}

机构：

[1] Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R China

[2] Yangtze Univ, Sch Urban Construct, Jingzhou 434023, Peoples R China

[3] Harbin Inst Technol, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China

[4] Huaqiao Univ, Coll Civil Engn, Xiamen 361021, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 165卷

基金：

中国国家自然科学基金;

关键词：

Aluminum alloy; Circular hollow section (CHS); Concrete-filled; Experimental investigation; Flexural behavior; Flexural stiffness; Strain distribution;

D O I：

10.1016/j.conbuildmat.2017.12.104

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents an experimental investigation on flexural behavior of concrete-filled aluminum alloy circular hollow section (CHS) tubes under pure in-plane bending. A total of 28 circular concrete-filled aluminum alloy tubes (CFAT) with nominal concrete cube strengths of 30 MPa and 50 MPa were tested. The flexural strengths, failure modes, flexural stiffness, ductility, bending moment versus mid-span deflection curves, overall vertical deflection curves, bending moment versus longitudinal strain curves and longitudinal strain distribution curves of circular CFAT beams are reported. It is demonstrated that the comparatively large wall thickness of aluminum alloy CHS tube enhanced the bearing capacity, the bending deformation capacity and the ductility of circular CFAT beams. Whereas, the concrete strength generally has insignificant influence on the flexural strength, flexural stiffness and ductility of circular CFAT beams. The current design specifications for the CFST are generally inappropriate for circular CFAT beams under pure in-plane bending with high scatter of predictions. Further research is still required to propose accurate design rules for circular CFAT beams. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：173 / 186

页数：14

共 18 条

[1]

AIJ, 1997, Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures

[2]

[Anonymous], 1994122005 EC4 CEN

[3]

[Anonymous], 2005, Load and resistance factor design specification for structural steel buildings

[4]

[Anonymous], 2005, BS 5400-5

[5]

[Anonymous], 2010, Metallic MaterialsTensile TestingPart 1: Method of Test at Room Temperature

[6]

Chinese Standard, 2002, GBT 50081 2002

[7] Flexural behaviour of concrete-filled aluminium alloy thin-walled SHS and RHS tubes [J].

Feng, Ran ;

Chen, Yu ;

Gong, Wenzhi .

ENGINEERING STRUCTURES, 2017, 137 :33-49

[8]

Furlong R.W., 1967, J STRUCT ENG, V93, P113

[9]

Galambos T.V., 1998, GUIDE STABILITY DESI, V5th

[10] Behaviour of high-strength concrete filled steel tubes under transverse impact loading [J].

Han, Lin-Hai ;

Hou, Chuan-Chuan ;

Zhao, Xiao-Ling ;

Rasmussen, Kim J. R. .

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2014, 92 :25-39

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