Numerical Simulation of Approach Slab under Truck Load

چکیده مقاله

Bridge Approach Slab (AS) is intended to serve as a gentle transition from the roadway pavement section to the bridge structure. It provides to minimize the effects coming from differential settlement and to give a smooth transition from the pavement to the bridge. In this paper, a methodology for designing AS is introduced by combining the result of Finite Element Modeling as well as structural analysis. A simplified method was considered for truck loading modeling. Then, the maximum induced moment in AS due to the truck load was obtained. Finally, structural analysis were performed and the required reinforcement for AS was calculated. The numerical results showed that maximum moment of 49 kN.m is generated in AS during the truck loading. The structural analysis indicated that a reinforcement with arrangement of 16@20 cm is required.

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