Effect of the number of stories and aspect ratio on the seismic performance of base-isolated buildings

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2021-2-5

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Zerman , Oğuz

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Despite the advanced engineering solutions, earthquakes remain to be one of the causes of casualties and property damage for humankind among natural disasters. To ensure that the essential services are not interrupted after an earthquake, it is crucial for some buildings to remain functional with minimal structural or non-structural damage. These buildings include administrative buildings, law enforcement buildings, fire stations, hospitals, and communication centers. Seismic base isolation systems are frequently used for reducing quake-induced structural and non-structural damage. This thesis mainly focuses on the feasibility of seismic base-isolated structures and determining the maximum feasible number of storeys of the baseisolated structures. Moreover, the effect of the following parameters on the seismic behavior is investigated: (i) isolator parameters, (ii) soil stiffness, (iii) earthquake intensities, and (iv) the aspect ratio of the structure. For this purpose, a comparative assessment is conducted to determine the feasibility of base-isolated structures. The feasibility of the base-isolated structures is assessed by considering the structural and non-structural performance goals.

Subject Keywords

Earthquake, Seismic base isolation, Friction pendulum bearing, Feasibility, Parametric study

URI

https://hdl.handle.net/11511/89616

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

O. Zerman, “Effect of the number of stories and aspect ratio on the seismic performance of base-isolated buildings,” M.S. - Master of Science, Middle East Technical University, 2021.