Behavior of circular thin-walled steel tube confined concrete stub columns

被引：21

作者：

Ding, Fa-xing ^{[1
]}

Tan, Liu ^{[1
]}

Liu, Xue-mei ^{[2
]}

Wang, Liping ^{[1
]}

机构：

[1] Cent S Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China

[2] Queensland Univ Technol, Sch Civil Engn & Built Environm, Brisbane, Qld 4000, Australia

来源：

STEEL AND COMPOSITE STRUCTURES | 2017年 / 23卷 / 02期

基金：

中国国家自然科学基金;

关键词：

circular steel tube; confinement; composite action; stress-strain relationship; elasto-plastic methods; ABAQUS; MECHANICAL-BEHAVIOR; STRENGTH;

D O I：

10.12989/scs.2017.23.2.229

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents a combined numerical and theoretical study on the composite action between steel and concrete of circular steel tube confined concrete (STCC) stub columns under axial compressive loading with a full theoretical elastoplastic model and finite element (FE) model in comparison with experimental results. Based on continuum mechanics, the elasto-plastic model for STCC stub columns was established and the analysis was realized by a FORTRAN program and the three dimensional FE model was developed using ABAQUS. The steel ratio of the circular STCC columns were defined in range of 0.5% to 2% to analyze the composite action between steel tube and concrete, and make a further study on the advantages of the circular STCC columns. By comparing the results using the elasto-plastic methods with the parametric analysis result of FE model, the appropriate friction coefficient between the steel tube and core concrete was defined as 0.4 to 0.6. Based on ultimate balance theory, the formula of ultimate load capacity applying to the circular STCC stub columns was developed.

引用

页码：229 / 238

页数：10

共 25 条

[1]

Aboutaha RS, 1998, STRUCT DES TALL BUIL, V7, P251

[2] Mechanical performance of eccentrically loaded pre-stressing concrete filled circular steel tube columns by means of expansive cement [J].

Chang, Xu ;

Huang, Cheng-Kui ;

Chen, Ya-Juan .

ENGINEERING STRUCTURES, 2009, 31 (11) :2588-2597

[3] Residual static strength of cracked concrete-filled circular steel tubular (CFCST) T-joint [J].

Cui, M. J. ;

Shao, Y. B. .

STEEL AND COMPOSITE STRUCTURES, 2015, 18 (04) :1045-1062

[4]

Ding F.X., 2011, J SHENZHEN U SCI ENG, V28, P202

[5] Composite action of hexagonal concrete-filled steel tubular stub columns under axial loading [J].

Ding, Fa-xing ;

Li, Zhe ;

Cheng, Shanshan ;

Yu, Zhi-wu .

THIN-WALLED STRUCTURES, 2016, 107 :502-513

[6] Mechanical behavior of circular and square concrete filled steel tube stub columns under local compression [J].

Ding, Fa-xing ;

Liu, Jing ;

Liu, Xue-mei ;

Yu, Zhi-wu ;

Li, Da-wen .

THIN-WALLED STRUCTURES, 2015, 94 :155-166

[7] Mechanical performance of stirrup-confined concrete-filled steel tubular stub columns under axial loading [J].

Ding, Fa-xing ;

Fang, Changjing ;

Bai, Yu ;

Gong, Yong-zhi .

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2014, 98 :146-157

[8] Elasto-plastic analysis of circular concrete-filled steel tube stub columns [J].

Ding, Fa-xing ;

Yu, Zhi-wu ;

Bai, Yu ;

Gong, Yong-zhi .

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 2011, 67 (10) :1567-1577

[9] Unified calculation method and its application in determining the uniaxial mechanical properties of concrete [J].

Ding F. ;

Ying X. ;

Zhou L. ;

Yu Z. .

Frontiers of Architecture and Civil Engineering in China, 2011, 5 (3) :381-393

[10] Experimental behaviours of steel tube confined concrete (STCC) columns [J].

Han, LH ;

Yao, GH ;

Chen, ZB ;

Yu, Q .

STEEL AND COMPOSITE STRUCTURES, 2005, 5 (06) :459-484

← 1 2 3 →