Paper

Exact Solution for Overhanging Slabs of Bridges under Arbitrary Concentrated Load Position


Authors:
Shahin Nayyeri Amiri; Masood Hajali; Asad Esmaeily
Abstract
Overhanging slabs of bridges are the most sensitive part of the bridge deck, because they have to tolerate high moments and shear forces acting on the cantilever part. So, the behaviors of bridges with overhanging slabs under concentrated loads are complicated. Several load mechanisms can develop depending on the loading and the geometry of the structure. The overhanging slabs of spine beam bridges can be treated as infinite or semi-infinite cantilevers. In this paper, cantilever slabs of varying or constant thickness, with or without edge reinforcement are analyzed under the action of an arbitrary placed point load. The structural actions of spine beam bridges are composed of interacting between the longitudinal behavior and transverse behavior. Therefore, solutions were obtained by means of Fourier Integrals for the deflection, rotation, moment and shear values along the longitudinal and transverse sections of the cantilever. The numerical calculation was done in MATLAB program. Also, a Finite Element analysis was performed using ANSYS to exhibit the accuracy of the numerical solution.
Keywords
Exact Solution; Overhanging Slabs of Bridges; Arbitrary Concentrated Load
StartPage
1
EndPage
13
Doi
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