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Theoretical analysis of simply supported channel girder bridges
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 Title & Authors
Theoretical analysis of simply supported channel girder bridges
Hu, Hong-Song; Nie, Jian-Guo; Wang, Yu-Hang;
Channel girder bridges that consist of a deck slab and two side beams are good choices for railway bridges and urban rail transit bridges when the vertical clearance beneath the bridge is restricted. In this study, the behavior of simply supported channel girder bridges was theoretical studied based on the theory of elasticity. The accuracy of the theoretical solutions was verified by the finite element analysis. The global bending of the channel girder and the local bending of the deck slab are two contributors to the deformations and stresses of the channel girder. Because of the shear lag effect, the maximum deflection due to the global bending could be amplified by 1.0 to 1.2 times, and the effective width of the deck slab for determining the global bending stresses can be as small as 0.7 of the actual width depending on the width-to-span ratio of the channel girder. The maximum deflection and transversal stress due to the local bending are obtained at the girder ends. For the channel girders with open section side beams, the side beam twist has a negligible effect on the deflections and stresses of the channel girder. Simplified equations were also developed for calculating the maximum deformations and stresses.
channel girder bridge;theoretical analysis;global bending;local bending;design equations;
 Cited by
Chen, J., Shen, S.L., Yin, Z.Y. and Horpibulsuk, S. (2014), "Closed-form solution for shear lag with derived flange deformation function", J. Constr. Steel Res., 102, 104-110. crossref(new window)

Gara, F., Ranzi, G., and Leoni, G. (2011), "Simplified method of analysis accounting for shear-lag effects in composite bridge decks", J. Constr. Steel Res., 67(10), 1684-1697. crossref(new window)

Gibbens, B., and Smith, P.S. (2004), "Design-construction of Sorell Causeway Channel Bridge, Hobart, Tasmania", PCI J, 49(3), 56-66.

Gjelsvik, A. (1991), "Analog-beam method for determining shear-lag effects", J. Eng. Mech., 117(7), 1575-1594. crossref(new window)

Highway Innovative Technology Evaluation Center (HITEC) (1996), "Evaluation findings: the segmental concrete channel bridge system", CERF Reports HITEC 96-01.

Hu, C. (2004), "Construction technique of continuous trough girder of Jianghan Line Qinglong Bridge", Rail. Stand Des, 19(6), 47-49. (in Chinese)

Li, R., Zhong, Y., Tian, B. and Du, J. (2011), "Exact bending solutions of orthotropic rectangular cantilever thin plates subjected to arbitrary loads", Int. Appl. Mech., 47(1), 107-119. crossref(new window)

MSC Software (2010), "Marc 2010 volume A: Theory and user information", MSC Software Corporation.

Raju, V. and Menon, D. (2011), "Analysis of behaviour of U-girder bridge decks", ACEE Int. J. Tran. Urban Devel., 1(1),34-38.

Raju, V. and Menon, D. (2013), "Longitudinal analysis of concrete U-girder bridge decks", Proceedings of the ICE-Bridge Engineering, 167(2), 99-110.

Shepherd, B. and Gibbens, B. (2004), "The evolution of the concrete "channel" bridge system and its application to road and rail bridges", Fib Concrete Structures (Symposium), Avignon, France, April.

Staquet, S., Rigot, G., Detandt, H. and Espion, B. (2004), "Innovative composite precast prestressed precambered U-shaped concrete deck for Belgium's high speed railway trains", PCI J, 49(6), 94-113. crossref(new window)

Timoshenko, S.P. and Woinowsky-Krieger, S. (1959), Theory of Plates and Shells, McGraw-Hill, New York.

Timoshenko, S.P. and Goodier, J. N. (1970), Theory of Elasticity McGraw-Hill, New York.

Washizu, K. (1975), Variational Methods in Elasticity and Plasticity, 2nd Edition, Pergamon Press, Oxford.

Wu, L., Nie, J., Lu, J., Fan, J. and Cai, C.S. (2013), "A new type of steel-concrete composite channel girder and its preliminary experimental study", J. Constr. Steel Res., 85, 163-177. crossref(new window)

Xiong, W., Cai, C.S., Ye, J. and Ma, Y. (2014), "Analytical solution on highway U-shape bridges using isotropic plate theory", KSCE J. Civil Eng., 1-13.

Xu, Y. (1984), "Design of prestressed concrete trough girder bridges", Rail. J., 6(2), 82-89.

Zhu, H. (1996), "General design of continuous channel girder of Geshui Creek Railway Bridge", Bridge Des., 10(3), 49-51. (in Chinese)

Zhou, S. J. (2011), "Shear lag analysis in prestressed concrete box girders", J. Bridge Eng, 16(4), 500-512. crossref(new window)