Abstract
The calculation of ultimate bearing capacity is a significant issue in the design of Concrete Filled Steel Tubular (CFST) arch bridges. Based on the space beam theory, this paper provides a calculation method for determining the ultimate strength of CFST structures. The accuracy of this method and the applicability of the stress-strain relationships were validated by comparing different existing confined concrete uniaxial constitutive relationships and experimental results. Comparison of these results indicated that this method using the confined concrete uniaxial stress-strain relationships can be used to calculate the ultimate strength and CFST behavior with satisfactory accuracy. The calculation results are stable and seldom affected by concrete constitutive relationships. The method is therefore valuable in the practice of engineering design. Finally, the ultimate strength of an arch bridge with span of 330 m was investigated by the proposed method and the nonlinear behavior was discussed.
Similar content being viewed by others
References
Cai, S.H., 2003. Modern Steel Tube Confined Concrete Structures. China Communications Press, Bejing (in Chinese).
Chen, B.C., 2000. Experimental study on mechanic behaviors of concrete-filled steel tubular rib arch under in-plane loads.Engineering Mechanics,17(2):44–50.
Fujii, K., 2003. An analysis on Concrete Filled Steel Tubular circular column under cyclic horizontal loads.Journal of Structural Engineering,49:1041–1050 (in Japanese).
Han, L.H., 2000. Steel Tube Confined Concrete Structures. Science Press, Beijing (in Chinese).
Nosaki, K., 1996. Research on bending performance of steel tube confined concrete column.Journal of Japan Concrete,18(2):1289–1294 (in Japanese).
Pan, Y.G., 1989. The constitutive relationship of the core concrete in concrete filled steel tubes.Journal of Harbin Architectural and Civil Engineering Institute,22(1):37–47 (in Chinese).
Susantha, K.A.S., Ge, H.B., 2001. Uniaxial stress-strain relationship of concrete confined by various shaped steel tubes.Engineering Structures,23:1331–1347.
Tang, J.L., Hino, S.I., 1996. Modeling of stress-strain relationships for steel and concrete in concrete filled circular steel tubular columns.Journal of Steel Structure,3(11):35–46 (in Japanese).
Zhong, S.T., 1999, The Concrete-Filled Steel Tubular Structures. Heilongjiang Science and Technology Press, Harbin (in Chinese).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Xie, X., Heng-zhi, C., Hui, L. et al. Numerical analysis of ultimate strength of concrete filled steel tubular arch bridges. J. Zheijang Univ.-Sci. A 6, 859–868 (2005). https://doi.org/10.1631/jzus.2005.A0859
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1631/jzus.2005.A0859