Topic
Soil structure interaction
About: Soil structure interaction is a research topic. Over the lifetime, 3653 publications have been published within this topic receiving 48890 citations.
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TL;DR: In this article, the influence of the soil-structure interaction (SSI) on the fundamental period of buildings is investigated, where the behavior of both the soil and the structure is assumed to be elastic.
Abstract: This paper includes an investigation of the influence of the soil-structure interaction (SSI) on the fundamental period of buildings. The behaviour of both the soil and the structure is assumed to be elastic. The soil-foundation system is modelled using translational and rotational discrete springs. Analysis is first conducted for one-storey buildings. It shows that the influence of the SSI on the fundamental frequency of building depends on the soil-structure relative rigidity K ss . Analysis is then extended for multi-storey buildings. It allows the generalization of the soil-structure relative rigidity K s to such complex structures. Charts are proposed for taking into account the influence of the SSI in the calculation of the fundamental frequency of a wide range of buildings.
48 citations
TL;DR: In this article, a hybrid model for the analysis of soil-structure interaction under dynamic conditions is developed which takes advantage of the desirable features of the finite element and substructure methods and which minimizes their undesirable features.
Abstract: A three-dimensional hybrid model for the analysis of soil-structure interaction under dynamic conditions is developed which takes advantage of the desirable features of the finite element and substructure methods and which minimizes their undesirable features. The modelling is achieved by partitioning the total soil-structure system into a near-field and a far-field with a hemispherical interface. The near-field, which consists of the structure to be analysed and a finite region of soil around it, is modelled by finite elements. The semi-infinite far-field is modelled by distributed impedance functions at the interface which are determined by system identification methods. Numerical results indicate that the proposed model makes possible realistic and economical assessment of three-dimensional soil-structure interaction for both surface and embedded structures.
48 citations
TL;DR: The equivalent shear beam (ESB) model container used in dynamic centrifuge testing is built to achieve the same dynamic response as the soil sample to minimise the boundary effects as mentioned in this paper.
Abstract: Dynamic centrifuge modelling has been established as a powerful tool for studying soil–structure interaction problems under earthquake loading. Increasingly complex models are being tested in centrifuges all around the world in an attempt to understand real structure behaviour under earthquake loading. However, there is a need to model the field conditions correctly in these centrifuge models. In a geotechnical centrifuge, the space available to model real situations is not infinite, and it is necessary to enclose the model within the finite boundaries of a container. The boundary effects of the soil container are important and can lead to inaccurate simulation of a field situation that has infinite lateral extent. The equivalent shear beam (ESB) model container used in dynamic centrifuge testing is built to achieve the same dynamic response as the soil sample to minimise the boundary effects. A series of dynamic centrifuge tests involving loose and dense, dry and saturated models of homogeneous horizonta...
48 citations
TL;DR: In this paper, the authors developed real-time dynamic hybrid testing (RTDHT) for SSI problems in order to consider the radiation damping effect of the semi-infinite soil foundation using a shaking table.
48 citations
TL;DR: In this article, the effects of kinematic interaction between pile and soil have been investigated. But the authors focus on the effects at the pile-head and focus only on the inertial bending moments generated from the oscillation of the superstructure.
Abstract: The conventional design methods for seismically loaded piles still concentrate in providing adequate resistance from the pile to withstand only the inertial bending moments generated from the oscillation of the superstructure, thus neglecting the effect of kinematic interaction between pile and soil. By contrast there has been extensive research on kinematic effects induced by earthquakes and a number of simplified methods are available for a preliminary evaluation of kinematic bending moments at the interface between two soil layers. Less attention has been paid to the effects of kinematic interaction at the pile-head. The paper summarizes recent research work on kinematic response analysis of fixed-head piles aimed at the performance evaluation of a piled foundation. Results from an extensive parametric study, undertaken by means of three-dimensional FE analyses, suggest a new criterion to predict kinematic bending effects at the pile head, where the combination of kinematic and inertial effect may be critical. Copyright © 2010 John Wiley & Sons, Ltd.
48 citations