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Incorporation of Soil-Structure Interaction into seismic performance evaluation of buildings

Bayat, M. R ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. Publisher: 2006
  3. Abstract:
  4. It has been known for many years that the type of soil under structures affects the structural performance during earthquakes. In fact, the soil affects the structural response in two ways, through the change in the free-field motion (usually known as the site effect) and due to Soil- Structure Interaction (SSI). The site effect has been included in the seismic codes from the most beginning. However, the SSI effect had not attracted much attention. The most significant intervention in this regard has been the 1978 inclusion of SSI in the tentative provisions of ATC3-06 in the United States, which is based on the results of studies on elastic response of soil structure systems. The effect of SSI has been the subject of numerous studies since then, which considered the elastic behavior for structure. The SSI effect on the response of nonlinear structures, however, has attracted much less attention. From another point of view, as the current seismic design philosophy is based on nonlinear behavior of buildings during moderate and strong earthquakes, there is a need to investigate the effect of soil on nonlinear response of structures. In this study, a procedure is proposed to incorporate the SSI effects into Capacity Spectrum Method of ATC-40. In addition, the main effects of the soil flexibility on the displacement demand of structures are illustrated through some typical examples
  5. Keywords:
  6. Capacity spectrum method ; Design philosophy ; Displacement demand ; Elastic behavior ; Elastic response ; Free-field motions ; Main effect ; Non-linear response ; Nonlinear behavior ; Nonlinear structure ; Seismic code ; Seismic performance evaluation ; Site effects ; Soil flexibility ; Soil structure system ; Structural performance ; Structural response ; Structure interactions ; Civil engineering ; Earthquake resistance ; Engineering geology ; Seismic design ; Soils
  7. Source: 8th US National Conference on Earthquake Engineering 2006, San Francisco, CA, 18 April 2006 through 22 April 2006 ; Volume 15 , 2006 , Pages 9008-9017 ; 9781615670444 (ISBN)
  8. URL: https://www.researchgate.net/publication/286765058_Incorporation_of_Soil-Structure_Interaction_into_seismic_performance_evaluation_of_buildings