Force Performance Analysis of Pile Behavior of the Lateral Load

摘要

This study was focused on the performance of the pile force at the lateral load of an archedbridge. The effect of the compression of arch bridges creates a large horizontal load. Therefore, it isone of the most important factors in the dimensioning of piles. The study aims to make acomparative study between the results obtained in the field, and those obtained by a 3D modeldefined as a Finite Element (FE) of a drilled pile, subjected to different lateral loads applied at exacttime intervals. Moreover, the study was intended to determine the influence of the lateral loadapplied to a different pile diameter using the FE model. Thus, the unified FEA software Abaqus?by Dassault systèmes? carried out various processing procedures, namely soil FE modeling, pile FEmodeling, soil-pile interface, Mesh, and boundary conditions, to carry out an effective andpredictive piles behavior analysis. Based on the Mohr-Coulomb criterion, the soil is considered tobe stratified with elastoplastic behavior, whereas the Reinforcement Concrete Pile (RCP) wasassumed to be linear isotropic elastic, integrating the concrete damage plasticity. Since the bridge isan arched bridge, the lateral load induced was applied to the head of the piles through aconcentrated force to check the pile strength, for which the displacement, stress and strain weretaken into account throughout, along the pile depth. The lateral displacement of the pile shows adeformation of the soil as a function of its depth, with different layers crossed with different lateralloads applied. Thus, from the study comparing the results of the FE measurements with the datameasured in the field, added to the statistical analyses are as follows: Decrease of the displacementand stress according to the diameter, taking into account the different diameter. The foundationsreceive loads of the superstructure to be transmitted to the ground. Thus, the piles are generallyused as a carrier transmitting loads on the ground. One of the important factors in the durability ofthe bridge depends more on the strength of these piles. This makes it necessary to study thereinforced concrete foundations because of their ability to resist loads of the structure, and thevertical and lateral loads applied to the structure. This implies an evaluation of the responses of theRCP according to the different lateral loads.