Compressive stiffness and strength of concrete filled double skin (CHS inner & CHS outer) tubes
Source abstract
Abstract
This paper investigated the stiffness and capacity of concrete filled double skin tubes (CFDST) column under axial compression. The column has circular hollow section (CHS) as both outer skin and inner skin. Stiffness of CFDST columns under small displacement was analyzed by the energy method. The modified elastic modulus of the between concrete and steel tubes were deduced respectively to calculate the composite stiffness of the CFDST stub column. According to the unified theory of concrete filled steel tube (CFST), the bearing capacity of the stub column was predicted by presenting the equivalent confinement coefficient of CFDST. The composite modulus and ultimate strength of the stub columns were calculated in comparison with corresponding test value, and it was found that there was good agreement between theoretical and experimental results.
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Research context
OpenAlex topics: Structural Load-Bearing Analysis · Structural Behavior of Reinforced Concrete · Fire effects on concrete materials
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References (13)
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1. Chen, H.T.: Theoretical study on continuity of basic behavior of every-sectioned CFT stub columns under axial loads. Doctoral Thesis, Harbin Institute of Technology, Harbin, China, 2001
2. Han, L.H., Tao, Z., Huang, H., Zhao, X.L.: Concrete-filled double skin (SHS outer and CHS inner) steel tubular beam-columns. Thin Walled Struct. 42(9), 1329–1355 (2004)10.1016/j.tws.2004.03.017 ↗
3. Sugimoto, M., Yokota, S., Sonoda, K., Yagishita, F.: A basic consideration on double skin tube-concrete composite columns. In: Osaka City University and Monash University Joint Seminar on Composite Tubular Structures, Osaka (1997)
4. Tao, Z., Han, L.H., Zhao, X.L.: Behaviour of concrete-filled double skin (CHS inner and CHS outer) steel tubular stub columns and beam-columns. J. Construct. Steel Res. 60, 1129–1158 (2004)10.1016/j.jcsr.2003.11.008 ↗
5. Wei, S., Mau, S.T., Vipulanandan, C., Mantrala, S.K.: Performance of new sandwich tube under axial loading: experiment. J. Struct. Eng. 121(12), 1806–1814 (1995)10.1061/(ASCE)0733-9445(1995)121:12(1806) ↗
6. Wright, H., Oduyemi, T., Evans, H.R.: The design of double skin composite elements. J. Construct. Steel Res. 19, 111–132 (1991)10.1016/0143-974X(91)90037-2 ↗
7. Yagishita, F., Kitoh, H., Sugimoto, M., Tanihira, T., Sonoda, K.: Double skin composite tubular columns subjected to cyclic horizontal force and constant axial force. In: Proceedings of the 6th International Conference on Steel and Concrete Composite Structures. USA, April, pp. 497–503 (2000)
8. Yang, J.J., Xu, H.Y., Peng, G.J.: A study on the behavior of concrete-filled double skin steel tubular columns of octagon section under axial compression. China Civil Eng. J. 37(10), 33–38 (2004). (in Chinese)
9. Zhao, X.L., Grzebieta, R.H.: Void-filled SHS beams subjected to large deformation cyclic bending. J. Struct. Eng. ASCE 125(9), 1020–1027 (1999)10.1061/(ASCE)0733-9445(1999)125:9(1020) ↗
10. Zhao, X.L., Grzebieta, R.: Strength and ductility of concrete filled double skin (SHS Inner and SHS Outer) tubes. Thin Walled Struct. 40, 199–213 (2002)10.1016/S0263-8231(01)00060-X ↗
11. Zhao, X.L., Grzebieta, R.H., Wong, P., Lee, C.: Void-filled RHS sections subjected to cyclic axial tension and compression. In: Chan, S.L., Teng, J.G. (eds.) Advances in Steel Structures, pp. 429–436. Elsevier, London (1999)
12. Zhong, S.T.: Unified Theory of Concrete Filled Steel Tubular Structure. Tsinghua University Press, Beijing, China (2006)
13. Zhong, S.T.: New concept and development of research on concrete-filled steel tube (CFST). In: Proceedings of the 2nd International Symposium on Civil Infrastructure Systems, Hong Kong, China, 9–12 December 1996