Abstract
In this study, the effect of the number and height of adjacent buildings on the seismic response of the structure located on a site with soft soil conditions was studied by considering the structure-soil-structure (SSSI) effect. For this purpose, next to a base structure (ten-story structure), one or two structures with similar, shorter (five-story structure) or higher (fifteen-story structure) height than the base structure were placed. Nonlinear dynamic analysis was performed by three-dimensional modeling in OpenSees software. The direct method was used to model the soil –structure interaction. The maximum responses of relative acceleration, displacement, drift and shear force of the structure in the SSSI models were compared with that of the SSI model. The results showed that the structure’s response was strongly affected by the number and height of adjacent structures. According to the results, the maximum drift of structure increased by 16% and 20%, respectively, when it is adjacent to one or two taller structures. There was also a 16% increase in shear force. According to the results, proximity to a shorter structure reduced drift and shear force. The maximum drift and shear force of a ten-story structure adjacent to a five-story structure decreased by 17% and 68%, respectively. The effects of SSSI can be more prominent when there are more than one building structures interacting.
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Sharifi, B., Nouri, G. (2022). The Effect of the Number and Height of Adjacent Buildings on the Seismic Response of Structures. In: Bento, R., De Stefano, M., Köber, D., Zembaty, Z. (eds) Seismic Behaviour and Design of Irregular and Complex Civil Structures IV. Geotechnical, Geological and Earthquake Engineering, vol 50. Springer, Cham. https://doi.org/10.1007/978-3-030-83221-6_6
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DOI: https://doi.org/10.1007/978-3-030-83221-6_6
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