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http://dx.doi.org/10.12989/scs.2012.13.5.437

Experimental study on shear capacity of circular concrete filled steel tubes  

Xiao, Congzhen (China Academy of Building Research)
Cai, Shaohuai (China Academy of Building Research)
Chen, Tao (China Academy of Building Research)
Xu, Chunli (China Academy of Building Research)
Publication Information
Steel and Composite Structures / v.13, no.5, 2012 , pp. 437-449 More about this Journal
Abstract
Concrete filled steel tube (CFST) structures have recently seen wide use in China, but studies of the shear problem of CFST are inadequate. This paper presents an experimental study on the shear capacity of circular concrete filled steel tube (CCFT) specimens with and without axial compression force. Shear capacity, ductility, and damage modes of CCFTs were investigated and compared. Test results revealed the following: 1) CCFTs with a small shear span ratio may fail in shear in a ductile manner; 2) Several factors including section size, material properties, shear span ratio, axial compression ratio, and confinement index affect the shear capacity of CCFTs. Based on test results and analysis, this paper proposes a design formula for the shear capacity of CCFTs.
Keywords
CFST; CCFT; shear capacity; shear span ratio; axial compression ratio; confinement index;
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  • Reference
1 AISC (2010), Specification for Structural Steel Buildings, ANSI/AISC 360-10, Chicago, IL.
2 American Concrete Institute ACI. (2008), Building code requirements for structural concrete and commentary, Farmington Hills, Mich.
3 Cai. S.-H. (2003), Modern Concrete Filled Steel Tube Structures, China Communications Press, Beijing, China, (in Chinese).
4 Eurocode 4, European Standard (2007), Design of composite steel and concrete structures, Part 1-1: General rules and rules for buildings, EN 1994-2.
5 Goode, C.D. (2008), "Concrete-filled steel tube columns-tests compared with Eurocode 4", Proceedings of the sixth International Conference on Composite Construction in Steel and Concrete, Tabernash, Colorado, July.
6 Han, L.-H., Yao, G.-H. and Tao, Z.(2007), "Performance of concrete filled thin-walled steel tubes under pure torsion", Thin-Walled Struct., 45(1), 24-36.   DOI   ScienceOn
7 Han, L.-H. and Zhong, S.-T.(1992), "The Behavior Studies for CFST Shearing Problem", J. Harbin Archit. & Civ. Eng. Inst., 25(4), 32-38.
8 Lee, E.T., Yun, B.H., Shim, H.J., Chang, K.H. and Lee, G.C. (2009), "Torsional Behavior of Concrete-Filled Circular Steel Tube Columns", ASCE J. Struct. Eng., 135(10), 1250-1258.   DOI   ScienceOn
9 Morino, S., Uchikoshi, M. and Yamaguchi, I. (2001), "Concrete-filled steel tube column system-its advantages", Inter. J. Steel Struct., 1(1), 33-44.   DOI
10 Roeder, C.W., Cameron, B. and Brown, C.B. (1999), "Composite action in concrete filled tubes", ASCE J. Struct. Eng., 125(5), 477-784.   DOI   ScienceOn
11 Roeder, C.W., Lehman, D.E. and Thody, R. (2009), "Composite action in CFT components and connections", AISC, Eng. J., 47(4), 229-242.
12 Roeder, C.W., Lehman, D.E. and Bishop, E. (2010), "Strength and stiffness of circular concrete-filled tubes", ASCE J. Struct. Eng., 136(12), 1545-1553.   DOI   ScienceOn
13 Standard of the Construction Standard Committee of China (1992), Specification for design and construction of concrete-filled steel tubular structures (CECS 28:90), Planning Press, Beijing, China, (in Chinese).
14 Tomii, M., Yoshimura, K. and Morishita, Y. (1977), "Experimental studies on concrete filled steel tubular columns under concentric loading", Proceedings of International Colloquium on Stability of Structures Under Static and Dynamic Loads, 718-741.
15 Yang, W.-H. and Zhong, S.-T. (1994), "A research on the shear modulus of concrete filled steel tubes with simple beam experiments", J. Harbin Archit. & Civ. Eng. Inst., 27(6), 28-34.