ANALYTICAL AND NUMERICAL STUDY OF SOIL-STRUCTURE INTERACTION ON BRIDGE'S FOUNDATIONS
Alex Micael Dantas de Sousa1; José Neres da Silva Filho1; Yuri Daniel Jatobá Costa1; Gracianne Maria Azevedo do Patrocínio1; Mariana Silva Freitas1
1 Universidade Federal do Rio Grande do Norte
doi:10.20906/CPS/CILAMCE2017-0637
Resumo
The work presents an analytical and numerical study using the Finite Element Method (FEM) throuhg the commercial software Plaxis 3D Foundations 2.0, from the foundation of a bridge in reinforced concrete, in order to analyze the effects of soil-structure interaction on horizontal and bending moments of the piles. In order to do so, a model of a hyperestatic bridge model with two girders was used and the ground of the infrastructure was taken equal to that of the bridge over the Jaguararibe River, located near the Municipality of Aracati, Ceará. It was observed that the analytical models tended to be less conservative when compared to the numerical results of isolated piles and more conservative when considering the pile group effect. It is concluded that numerical models allow to simulate a greater number of variables of lateral loading of piles, such as the group effect, reason for which the results tended to distance themselves from the analytical models in this study.
Palavras-chave: Bridges; Soil; Foundations; Finite Element Method (FEM)