Structural Behavior of Railway Bridges Against Wheel Loading by Finite Element Analysis
DOI:
https://doi.org/10.37628/jsea.v3i1.132Abstract
Three dimensional numerical investigations carried out on railway bridges using ABAQUS/Explicit finite element program. The length of bridge 30 m and single track was considered in the present study. The bridge members such as main girder, cross girders and truss members are designed according to Indian Railway Standard (IRS) and the geometry of the rail was also modeled according to the standard. The constitutive and fracture behavior of materials have been predicted using JC model available in ABAQUS. The material parameters of JC model for the bridge members available in the literature. The responses of bridges have been predicted in light of deflections and von-Mises stress. The investigations carried out by considering the bridge against Class AA loading. The effect of depth of main girder was studied by varying the depth as 1600, 1400, 1200 and 1000 mm. Also the responses of railway bridges studied by applying patch load over the contact surface of 100 mm2 between rail and wheel. The response of bridges was studied by dividing the span of the bridges into two considering as strengthening measure. In addition to that the response of bridges was studied by removing two cross girders in the middle of the bridges considering as the members are damaged due to corrosion or member failure condition.References
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