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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.8 P.859~868

10.1631/jzus.2005.A0859


Numerical analysis of ultimate strength of concrete filled steel tubular arch bridges


Author(s):  XIE Xu, CHEN Heng-zhi, LI Hui, SONG Shi-rui

Affiliation(s):  Department of Civil Engineering, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   xiexu@zju.edu.cn, chenhengzhi78@yahoo.com.cn

Key Words:  Concrete Filled Steel Tubular (CFST), Confined concrete, Stress-strain relationship, Ultimate strength


XIE Xu, CHEN Heng-zhi, LI Hui, SONG Shi-rui. Numerical analysis of ultimate strength of concrete filled steel tubular arch bridges[J]. Journal of Zhejiang University Science A, 2005, 6(8): 859~868.

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author="XIE Xu, CHEN Heng-zhi, LI Hui, SONG Shi-rui",
journal="Journal of Zhejiang University Science A",
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publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.A0859"
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%DOI 10.1631/jzus.2005.A0859

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T1 - Numerical analysis of ultimate strength of concrete filled steel tubular arch bridges
A1 - XIE Xu
A1 - CHEN Heng-zhi
A1 - LI Hui
A1 - SONG Shi-rui
J0 - Journal of Zhejiang University Science A
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SP - 859
EP - 868
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2005.A0859


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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Cai, S.H., 2003. Modern Steel Tube Confined Concrete Structures. China Communications Press, Beijing (in Chinese).

[2] 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.

[3] 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).

[4] Han, L.H., 2000. Steel Tube Confined Concrete Structures. Science Press, Beijing (in Chinese).

[5] Nosaki, K., 1996. Research on bending performance of steel tube confined concrete column. Journal of Japan Concrete, 18(2):1289-1294 (in Japanese).

[6] 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).

[7] 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.

[8] 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).

[9] Zhong, S.T., 1999. The Concrete-Filled Steel Tubular Structures. Heilongjiang Science and Technology Press, Harbin (in Chinese).

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