Análise dos deslocamentos e dos momentos fletores nas fundações e nos pilares de pontes retas ortogonais em concreto armado considerando a interação solo-estrutura

Abstract

The research presents an analytical and numerical study considering the soil-structure interaction (ISE) of the displacements and bending moment in the foundations and in the column of a bridge in reinforced concrete. For do this, some classic analytical models of soil-structure interaction (ISE) were studied focusing on the Matlock and Reese solution and on the Elastic Differential Equation solution obtained using the Fourier series. The idealized bridge was modeled in a coupled manner (3D structure) using the Finite Element Method supported by the CSiBridge v17 software and the results of horizontal displacements and bending moment were compared with those obtained by numerical modeling performed through SAP2000 software. The obtained values corroborated that the computational methods, when calibrated by reliable input parameters, tend to distance themselves less from the physical reality of the phenomenon than the analytical methods, since they allow simulating the problem in a more realistic way. Finally, it is emphasized that the quality of the response that is obtained using computational models must be taken with caution by the designers, always considering the sensitivity of the models adopted.