Some aspects of the effect soil – structure interaction for multistory buildings on deep foundations / Alguns aspectos dos efeitos da interação solo-estrutura em edifícios de múltiplos andares com fundação profunda

AUTOR(ES)
DATA DE PUBLICAÇÃO

2000

RESUMO

The main aim of this work is to use a numerical model for soil – structure interaction and the importance of their consideration in a global structural analysis. For the structure the model considers the contribution of transverse bending stiffness of slabs, the exccentricy of beams in relation to the pile, and the hypothesis of rigid diaphragms in the plane of the slabs. Primary attention is placed on vertically loaded pile under rigid pile cap in which the influence of pile groups imerse in the soil is calculated considering the soil continuity. The analysis of soil – structure interaction is done in an iterative process by adjusting the stiffness of the foundation until a certain preestablished convergence of calculated settlements or load reactions are obtained. In this manner it’s shown that the integrated analysis of the structure and soil medium leads to better results of differential settlements and load reactions of the supports. In the same manner, this analysis procedure leads to a better estimate of the internal forces in the structural elements, showing a more realistic behaviour of interdependence betwen the strucutre and the soil medium

ASSUNTO(S)

fundações profundas deep foundations edifícios de andares múltiplos multistory buildings soil – structures interaction interação solo – estrutura

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