Nonlinear behavior of high-rise steel building under wind effect taking into account soilstructure interaction

Abstract eng:
Buildings are becoming slenderer, which make them subjected to strong wind effects, for that engineers are confronted to the random variation of the lateral loads problem, that must be considered from the very beginning of the design process. In this paper, and in order to study the structural performance of a high-rise reinforced concrete building under wind loads, a nonlinear analysis will be performed to evaluate the nonlinear behavior of the structure and to prevent large deformations that can affect the stability of the entire structure. For that type of buildings, neglecting the effect of the soil and its properties on the structure behavior is not reasonable, because there is a mutual stress exchanging between the ground and the structure itself. This study investigates the importance of taking account of Soil-Structure Interaction (SSI) effects on the response of high-rise buildings under wind loads, and illustrate the differences in the behavior of the building with and without considering SSI effects. The results are then discussed and compared for the two cases.

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