The response of tall buildings to far-field earthquakes and the case of a 49-storey steel building

Date

2020-06-01

Author

Muin, Sifat
Astaneh-Asl, Abolhassan
Topkaya, Cem

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This paper investigates the seismic response of an instrumented 49-storey steel structure in San Francisco to weak, far-field, and strong, near-field ground motions. The instrumentation records obtained during the 1989 Loma Prieta earthquake are used to verify the accuracy of the predictions of the time-history analysis of the model. The ChiChi-002 ground motion record from the 1992 Chi-Chi earthquake in Taiwan (PGA = 0.08 g), representing a 'weak, far-field' earthquake and the record from the 1994 Northridge-Newhall earthquake (PGA = 0.60 g) representing a 'strong, near-field' earthquake were used in the study. The results showed that the force, acceleration, and displacement responses of this long-period structure to the 'weak far-field' ground motion are much larger than its response to the 'strong, near-field' ground motion. Also, the response attenuates at a slower rate for the weak, far-field earthquake, indicating the possibility of greater damage, both to structural and non-structural elements, during the earthquake. Interim seismic design recommendations are formulated to address this issue in the design of tall buildings with long periods.

URI

https://hdl.handle.net/11511/69847

Journal

International Journal of Earthquake and Impact Engineering

DOI

https://doi.org/10.1504/ijeie.2020.105378

Collections

Department of Civil Engineering, Article

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Citation Formats

S. Muin, A. Astaneh-Asl, and C. Topkaya, “The response of tall buildings to far-field earthquakes and the case of a 49-storey steel building,” International Journal of Earthquake and Impact Engineering, pp. 15–39, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/69847.