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Soil Structure Interaction between Two Adjacent Buildings under Earthquake Load

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Author(s): Mahmoud Yahyai | Masoud Mirtaheri | Mehrab Mahoutian | Amir S. Daryan

Journal: American Journal of Engineering and Applied Sciences
ISSN 1941-7020

Volume: 1;
Issue: 2;
Start page: 121;
Date: 2008;
Original page

Keywords: Soil structure interaction | adjacent buildings | shear wall | earthquake loading

ABSTRACT
In some cases, tall buildings are located in geotechnically unsuitable places, due to their high ratio of height to width; there is risk of uplift and other effects such as overturning and reduction structure serviceability during earthquake. This research is aimed to evaluate the effect of Soil-Structure Interaction (SSI) on seismic behavior of two adjacent 32 story buildings such as time period, base shear and displacements. The interaction effects are investigated for variable distance between the two buildings. Three types of soil such as soft clay, sandy gravel and compacted sandy gravel are considered for this study. The result obtained that the interaction effect increases time period of both buildings base shear and lateral displacement of the structures increases.
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