Intermediate Diaphragms Arrangement in Horizontal Curved Composite Box-Girder Bridge with Corrugated Webs

Abstract:

Horizontally curved box girder bridges inherently exhibit complex torsional and distortional behavior as well as bending due to the initial curvature. As to the horizontal curved composite box-girder bridges with corrugated webs, diaphragms were arranged reasonably to reduce torsional and distortion effect for safety and stability due to the coupling of bending and torsion effect for initial curvature and reduced bending stiffness in horizontal direction for corrugated steel webs. Finite element models for a 3-spans continuous horizontal curved composite box girder bridges with corrugated webs were established. Comparing the ratio of warping normal stress to bending normal stress, the influence of the number and spacing for diaphragms on distortion control for curved bridges is investigated. Extensive parametric studies (including central angle, the aspect ratio of the box section, the spacing of the intermediate diaphragms)are performed and the design suggestions for the maximum spacing of the intermediate diaphragms are presented.

• Periodical: Applied Mechanics and Materials (Volumes 94-96)
• Pages: 326-331
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.94-96.326
• Online since: September 2011
• Authors: Jun He, Bin Han, Yu Qing Liu, Ai Rong Chen
• Keywords: Corrugated Steel Web, Curved Bridge, Diaphragm, Distortion

References

[1] Yuqing Liu: Steel-concrete hybrid bridge (China Communication Press, Beijing 2005), in Chinese.

[2] J. He, A. Chen, and Y. Liu. "Analysis on structural system and mechanical behavior of box girder bridge with corrugated steel webs." The 3rd international conference on steel and composite structures(ICSC07). UK. (2007), pp.489-494.

[3] R. Dabrowski, Curved Thin-walled Girders Theory and Analysis, Cement and Concrete Association, 1968.

[4] S.H. Zhang, L.P.R. Lyons, A thin-walled box beam finite element for curved bridge analysis, Comput. Struct. 18 (6) (1984) 1035–1046.

DOI: 10.1016/0045-7949(84)90148-2

[5] J.C. Oleinik, C.P. Heins, Diaphragms for curved box beam bridges, J. Struct. Div. ASCE 101 (10) (1975) 2161–2178.

DOI: 10.1061/jsdeag.0004192

[6] T. Yabuki, Y. Arizumi, A provision on intermediate diaphragm spacing in curved steel-plated box-bridge-girders, Struct. Eng. Earthquake Eng. JSCE 6 (2) (1989) 207s–216s.

DOI: 10.2208/jscej.1989.410_37

[7] American Association of State Highway and Transportation Officials (AASHTO), Guide Specifications for Horizontally Curved Highway Bridges, Washington DC, 1993.

[8] Hanshin Expressway Public Corporation, Guidelines for the Design of Horizontally Curved Girder Bridges, Japan, 1988.

[9] T. Yoda and Y. Shoda. Torsion and distortion of composite PC box girders with corrugated steel webs. Journal of Structural Engineering, JSCE, (1994) 40A, pp.1381-1388. in Japanese.

[10] Mo, Y. L., and Fan, Y. Torsional design of hybrid concrete box girders. Journal of Bridge Engineering, ASCE, (2006)11, pp.329-339.

DOI: 10.1061/(asce)1084-0702(2006)11:3(329)

[11] H. J. Li, J. S. Ye, S. Wan, et al. Research on diaphragm distance of box girder with corrugated steel webs. Highway and Transportation Research and Development, (2004)10: 51-54. in Chinese.