Análise da influência da interação solo-estrutura sobre os esforços internos em uma langarina de uma ponte rodoviária em concreto armado

Abstract

The present work delas with the collection and comparison of internal efforts in a stringer of a road bridge in reinforced concrete considered whether or not the soil-structure interaction. The comparison covers the conventional manual method presented by Spernau ([19--]) ans structure modeling in a software structural analysis based on the finite element method (SA2000 V 12). A literature review was made on the work undertaken in the área of soil-structure interaction ando n the methods of obtaining soil characterization parameters for these models. As a simulation, the soil parameters adopted were those of the city of Alegrete-RS. In this case the bridge would be placed on surfasse of the shoe type isolated foundations. The numerical values obtained has the purpose of identifying changes in efforts to consider the soil deformability. The results obtained in this work showed the influence of soil-structure interaction consideration about internal efforts of the stringers, once to compare the results obtained with and without efforts to soil-structure interaction did not have significant changes, probaly as a resulto f the isolation caused by the support devices presente on top of the column of the bridge.