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- W4248445699 abstract "For concrete box girders with flanges of linearly variable thicknesses along the cross section widths, shear lag effects were analyzed according to the potential energy variation principle. The additional deflection caused by the shear lag effect was used as the generalized displacement to describe the shear lag deformation state, in view of the influence of the axial force equilibrium condition on the shear lag. The calculation results of several simply supported box girders subjected to uniform loads and concentrated loads were compared. The results show that, the proposed method gives stresses in good agreement with those obtained from the finite element method, which confirms the correctness of this method. Compared with the simplified calculation method for box girders with equivalent uniformthickness flanges, this method has enhanced accuracy for real box girders with variablethickness flanges, and the error reduction is up to 5.65%." @default.
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- W4248445699 date "2019-01-01" @default.
- W4248445699 modified "2023-10-18" @default.
- W4248445699 title "翼板变厚度箱形梁的剪力滞效应分析" @default.
- W4248445699 doi "https://doi.org/10.21656/1000-0887.390259" @default.
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