Response of isolated RC buildings under bi-directional near-fault ground motions

Date

2010-12-01

Author

Ozdemir, G.
Akyüz, Uğurhan

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Nonlinear response history analyses of an isolated 3-story RC building were carried out under bi-directional earthquake excitations considered as near-fault records. Two sets of eleven near-fault ground motion records were used. These ground motions are classified according to site classes they were recorded (stiff and soft soil). Selected near-fault ground motions were used to investigate the variation of the absolute top floor acceleration, isolator displacement, and base shear of the isolated RC buildings. The responses of the isolated RC building were represented considering different parameters such as yield strength of LRB (Q/W ratio), isolation period, and site classes where ground motions are recorded. Analysis results showed that the amount of contribution of orthogonal horizontal ground motion component is higher at stiff soil records than soft soil records. Consideration of bi-directional response of isolated structures is observed that it may lead to more efficient design strategies for the superstructure.

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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84867176918&origin=inward
https://hdl.handle.net/11511/107109

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Department of Civil Engineering, Conference / Seminar