A Partial Functional Differential Method for Shear Lag Analysis of Composite Double-Cell Box Girders

YU Jiang; HU Shao-wei

doi:10.21656/1000-0887.370112

Volume 37 Issue 8

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YU Jiang, HU Shao-wei. A Partial Functional Differential Method for Shear Lag Analysis of Composite Double-Cell Box Girders[J]. Applied Mathematics and Mechanics, 2016, 37(8): 804-819. doi: 10.21656/1000-0887.370112

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A Partial Functional Differential Method for Shear Lag Analysis of Composite Double-Cell Box Girders

doi: 10.21656/1000-0887.370112

State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering(Nanjing Hydraulic Research Institute), Nanjing 210024, P.R.China

Funds: The National Science Fund for Distinguished Young Scholars of China（51325904）；The National Natural Science Foundation of China（51279111）

Received Date: 2016-04-14
Rev Recd Date: 2016-07-22
Publish Date: 2016-08-15

Abstract

Abstract

The shear lag effects caused large deformation and significant damage of some structural members in engineering, and had unfavorable influences on engineering safety. To deepen the understanding of the shear lag mechanism, the partial functional differential system for steel-concrete composite double-cell box girders was proposed through introduction of different parabolic partial functional modes. In turn, the particular solutions of the differential system were obtained under a specific load (the span-center concentrated load), and the shear lag coefficients under 4 modes of partial functional expressions were also calculated. As for different concrete material parameters and steel material parameters, the shear lag characteristics of the double-cell box girder examples were comparatively studied. This work provides some reference for the design and calculation of thin-wall box girders.
- parabolic mode,
- partial functional differential system,
- composite double-cell box girder,
- shear lag characteristic

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References(13)

References

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