The effect of soil-foundation-structure interaction on the wind-induced response of tall buildings

被引：0
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作者：
Venanzi, Ilaria [1 ]
Salciarini, Diana [1 ]
Tamagnini, Claudio [1 ]
机构：
[1] Department of Civil and Environmental Engineering, University of Perugia, Via G. Duranti, 93-06125 Perugia, Italy
来源：
Engineering Structures | 2014年 / 79卷
关键词：
The aim of this work is to provide a contribution towards the qualitative and quantitative assessment of soil-foundation-structure interaction effects on the dynamic response of tall buildings founded on relatively rigid rafts; and subjected to wind loading. The mechanical response of the soil-foundation system is modeled using two different approaches: in the first; the (visco)elastic system response is defined in terms of impedance coefficients; in the second; an inelastic; 6 DOF macroelement recently proposed for shallow foundations on coarse-grained soils is adopted. The macroelement approach allows to account for the non-linear and irreversible behavior of the soil-foundation system; and to consider the experimentally observed coupling between the different degrees of freedom in the inelastic regime. The results of a series of numerical simulations highlight the importance of considering SFSI effects in the analysis; and allow to identify the effects of the different constitutive assumptions made for the soil-foundation system. In particular; it is found that the permanent displacements and rotations accumulated at the foundation level in the inelastic simulations can give rise to significant permanent displacements at the building top. Moreover; significant differences are observed on the predicted forces and moments distribution at the building base for the two SFSI approaches considered. © 2014 Elsevier Ltd;
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页码：117 / 130
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