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http://dx.doi.org/10.12989/scs.2012.13.3.259

Parametric study on bearing capacity of CFST members considering the concrete horizontal casting effect  

Sun, Wenbo (Architect Design and Research Institute, South China University of Technology)
Luo, Yiqun (School of Civil and Traffic Engineering, South China University of Technology)
Zhou, Weijian (School of Civil and Traffic Engineering, South China University of Technology)
Huang, Wei (School of Science and Engineering, Jinan University)
Publication Information
Steel and Composite Structures / v.13, no.3, 2012 , pp. 259-275 More about this Journal
Abstract
Concrete filled steel tubular (CFST) member has been widely used in the construction of high-rise buildings for its high axial bearing capacity. It can also be applied on long-span structures such as spatial structures or bridges not only for its high bearing capacity but also for its construction convenience. Concrete casting effect of CFST member is considered in the study of its bearing capacity in this paper. Firstly, in order to authenticate the applicability of constitutive relationship and yield criterion of steel and concrete based on FEM, two ANSYS models are built to simulate and compared with other's test. Secondly, in order to find the huge difference in bearing capacity due to different construction processes, two full-size CFST models are studied when they are horizontally cast and axially compressed. Finally, the effects of slenderness ratio (L/D) and confining parameter (D/t) of CFST members are studied to reveal the intrinsic links between bearing capacity and slenderness ratio or confining parameter.
Keywords
CFST; bearing capacity; the nonlinear finite element method; concrete horizontal casting effect;
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1 ANSYS Element Reference. (1998), Electronic Release [M], SAS IP, INC.
2 ANSYS Theory Reference. (1998), Electronic Release, SAS IP, Inc.
3 Attard, M. M. and Setunge, S. (1996), "Stress-strain relationship of confined and unconfined concrete", ACI Materials Journal, 93(5), 432-442.
4 Choi, K. and Xiao, Y. (2010), "Analytical model of circular CFRP confined concrete-filled steel tubular columns under axial compression", Journal of Composites for Construction, 14(1), 125-133.   DOI   ScienceOn
5 Furlong, R. W. (1967), "Strength of steel-encased concrete beam-columns", J. Struct. Engrg., 94(1), 267-281.
6 Jiang, L., Zhou, W. and Qi, J. (2011), "Numerical method and experimental study on the ultimate load carrying capacity of four tube CFST latticed columns", 2011 International Conference on Structures and Building Materials, Guangzhou, China, January.
7 Han, L. (2007), Concrete Filled Steel Tubular Structures from Theory to Practice. Beijing: China Science Press. (in Chinese)
8 Hatzigeorgiou, G. D. (2008), "Numerical model for the behavior and capacity of circular CFT columns, Part I: Theory", Eng. Struct., 30(6), 1573-1578.   DOI   ScienceOn
9 Knowles, R. B., and Park, R. (1969). "Strength of concrete filled steel tubular columns", J. Struct. Engrg., 95(12), 2565-2587.
10 Lee, J. and Fenves, G. L. (1998), "Plastic-damage model for cyclic loading of concrete structures". J. Eng. Mech., 124(8), 892-900.   DOI   ScienceOn
11 Lu, H., Han, L. and Zhao, X. (2009), "Analytical behavior of circular concrete-filled thin-walled steel tubes subjected to bending", Thin-Walled Structures, 47(3), 346-358.   DOI   ScienceOn
12 Lubliner, J., Oliver, J., Oller, S. and Onate, E. (1989), "A plastic-damage model for concrete", International Journal of Solids and Structures, 25(3), 229-326.
13 Luo, H., Yan, Z. G. and An, M. Z. (2011), "Finite element analysis of RPC-filled steel tube stub columns", 2nd International Conference on Manufacturing Science and Engineering, Guilin, China, April.
14 Masmoudi, R., et al. (2010), "Experimental investigation on the behaviour of concrete-filled FRP tubes under flexural load", Annual Conference of the Canadian Society for Civil Engineering 2010, Winnipeg, MB, Canada, June.
15 Mohamed, H. M. and Masmoudi, R. (2010), "Flexural strength and behavior of steel and FRP-reinforced concrete-filled FRP tube beams", Eng. Struct., 32(11), 3789-3800.   DOI   ScienceOn
16 Probst, A. D., et al. (2010), "Composite flexural behavior of full-scale concrete-filled tubes without axial loads", J. Struct. Eng., 136(11), 1401-1412.   DOI   ScienceOn
17 Schneider, S. P. (1998), "Axially Loaded Concrete-Filled Steel Tubes," J. Struct. Eng., 124 (10), 1125-1138   DOI   ScienceOn
18 Sun, G. et al. (2009), "Simulation calculation research of long span CFST arch bridge based on optimization algorithm", 2009 2nd International Conference on Intelligent Computing Technology and Automation, Changsha, Hunan, China, October.
19 Valipour, H. R. and Foster, S. J. (2010), "Nonlinear static and cyclic analysis of concrete-filled steel columns", J. Constr. Steel Res., 66(6), 793-802.   DOI   ScienceOn
20 Yang, Y. and Han, L. (2011), "Behaviour of concrete filled steel tubular (CFST) stub columns under eccentric partial compression", Thin-Walled Structures, 49(2), 379-395.   DOI   ScienceOn
21 Zha Xiaoxiong and ZHONG Shantong (1997), "The behavior effect on concrete filled steel tubular members subjected to compression under the initial stress of steel tube based on the finite element method", Journal of Harbin University of Civil Engineering and Architecture. (in Chinese)
22 Sundarraja, M. C. and GaneshPrabhu, G. (2011), "Finite element modelling of CFRP jacketed CFST members under flexural loading", Thin-Walled Structures, 49, 1483-1491.   DOI   ScienceOn
23 Shaat Amr and Fam Amir (2007), "Finite element analysis of slender HSS columns strengthened with high modulus composites". Steel. Compos. Struct., 7, 19-34.   DOI
24 JIANG Shao-fei, HAN Lin-hai and QIAO Jing-chuan. (2000), "Initial discussion on the bond problems of steel and concrete in Concrete Filled Steel Tubes (CFST)", Journal of Harbin University of C. E. & Architecture, 33(2), 24-28. (in Chinese)