AVALIAÇÃO NUMÉRICA DO COMPORTAMENTO SOLOESTACA PELOS MÉTODOS DE CONTORNO E DOS ELEMENTOS FINITOS

Sérgio Takeo Oshima; André Luis Christoforo; Cristiano Gabriel Persch; Túlio Hallak Panzera; Paulo Henrique Ribeiro Borges

Authors

Sérgio Takeo Oshima Engenheiro Civil, Msc. em Engenharia de Estruturas, Departamento de Engenharia de estruturas, Escola de Engenharia de São Carlos da Universidade de São Paulo – EESC/USP
André Luis Christoforo Engenheiro Civil. Dr. em Engenharia de Estruturas, Departamento de Engenhria Mecânica, Universidade Federal de São João Del-Rei, UFSJ
Cristiano Gabriel Persch Acadêmico de Engenharia Civil. Departamento de Engenharia Civil, Universidade Federal de Santa Maria, UFSM
Túlio Hallak Panzera Engenheiro Mecânico. Dr. em Engenharia Mecânica, Departamento de Engenharia Mecânica, Universidade Federal de São João Del-Rei, UFSJ
Paulo Henrique Ribeiro Borges Engenheiro Civil. Dr. em Engenharia Civil, Departamento de Engenharia Civil, Centro Federal de Educação Tecnológica, CEFET

Keywords:

Differential equations, Integral equations, Soil-pile interaction, Numerical methods

Abstract

This paper presents a mixed formulation of the Boundary Element Method with the Finite Element Method for analysis of soil-pile interaction in two dimensions. In this formulation the piles are modeled using the Finite Element Method as bar elements and the soil, through the Boundary Element Method, as a continuous material, linear-elastic, isotropic and homogeneous. It presents the soil and pile equations to vertical elements and, then, the combination of both, creating a single system of equations. The changes needed for a system composed by inclined piles are also presented. After resolution of the final system, the displacements and strains of soil-pile contact are obtained. An example is presented and solved based on the formulation proposed here, allowing to compare the results with models proposed by other authors.