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 authors evaluated the importance of the ground motion, site effects and soil-structure interaction phenomena in the context of inelastic dynamic analysis of bridge structures, and the associated analytical tools established and validated in a companion paper are used for a detailed parametric analysis.
Abstract: The methodology for dealing with spatial variability of ground motion, site effects and soil–structure interaction phenomena in the context of inelastic dynamic analysis of bridge structures, and the associated analytical tools established and validated in a companion paper are used herein for a detailed parametric analysis, aiming to evaluate the importance of the above effects in seismic design. For a total of 20 bridge structures differing in terms of structural type (fundamental period, symmetry, regularity, abutment conditions, pier-to-deck connections), dimensions (span and overall length), and ground motion characteristics (earthquake frequency content and direction of excitation), the dynamic response corresponding to nine levels of increasing analysis complexity was calculated and compared with the ‘standard’ case of a fixed base, uniformly excited, elastic structure for which site effects were totally ignored. It is concluded that the dynamic response of RC bridges is indeed strongly affected by the coupling of the above phenomena that may adversely affect displacements and/or action effects under certain circumstances. Evidence is also presented that some bridge types are relatively more sensitive to the above phenomena, hence a more refined analysis approach should be considered in their case. Copyright @ 2003 John Wiley & Sons, Ltd.
130 citations
TL;DR: In this paper, a finite element procedure for modeling the interaction of contacting bodies is developed and illustrated, which is capable of accounting for both slippage and separation of the mating surfaces.
Abstract: A finite element procedure for modeling the interaction of contacting bodies is developed and illustrated. The model is capable of accounting for both slippage and separation of the mating surfaces. In addition, the bond springs, which in certain situations are used in the nonslip model, can be used to capture local deformation phenomena such as edge effects and local deformation caused by asperities, etc. The capabilities of the model for representing reinforced concrete bond, reinforced soil bond, soil structure interaction, and testing machine-sample interaction are considered. Numerical examples are given for modeling of concrete-reinforcement bond, pile-soil interaction, and footing-soil interaction; the results for the first two examples are compared to available experimental results.
128 citations
TL;DR: A direct finite element method for analysis of dynamic soil-structure interaction based on the large general structure analysis software that can simulate not only the absorption of infinite soil to the scattering wave but also the elasticity recovery capacity of the far field media on the boundary.
Abstract: This paper presents a direct finite element method for analysis of dynamic soil-structure interaction based on the large general structure analysis software. The method can simulate not only the absorption of infinite soil to the scattering wave but also the elasticity recovery capacity of the far field media on the boundary. A new input method of wave motion dealing with dynamic soil-structure interaction is also proposed which can be used to exactly simulate seismic wave input with any angle. The accuracy of the methods presented in this paper is demonstrated by the numerical examples.
127 citations
TL;DR: In this paper, a large-displacement approach is adopted to extract the governing equations of motion allowing for a rigorous calculation of the nonlinear response even under near-overturning conditions.
126 citations
TL;DR: In this article, the input-output strong motion data pairs needed for evaluations of flexible-and fixed-base fundamental mode parameters are derived, and they are verified for eleven sites with complete instrumentation of the structure, foundation, and free-field.
Abstract: Parametric system identification is used to evaluate seismic soil–structure interaction effects in buildings. The input–output strong motion data pairs needed for evaluations of flexible- and fixed-base fundamental mode parameters are derived. Recordings of lateral free-field, foundation, and roof motions, as well as foundation rocking, are found to be necessary for direct evaluations of modal parameters for both cases of base fixity. For the common situation of missing free-field or base rocking motions, procedures are developed for estimating the modal parameters that cannot be directly evaluated. The accuracy of these estimation procedures for fundamental mode vibration period and damping is verified for eleven sites with complete instrumentation of the structure, foundation, and free-field. © 1998 John Wiley & Sons, Ltd.
123 citations