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Earthquakes and Structures Volume 20, Number 3, March 2021 , pages 337-351 DOI: https://doi.org/10.12989/eas.2021.20.3.337 |
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Assessment of seismic risk of a typical RC building for the 2016 Gyeongju and potential earthquakes |
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Hyun Woo Jee and Sang Whan Han
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| Abstract | ||
| On September 12, 2016, the Gyeongju earthquake occurred in the south-eastern region of the Korean peninsula. The event was ranked as the largest magnitude earthquake (=5.8) since instrumental recording was started by the Korean Metrological Administration (KMA) in 1978. The objective of this study is to provide information obtained from the 2016 Gyeongju earthquake and to propose a procedure estimating seismic risk of a typical old RC building for past and potential earthquakes. Ground motions are simulated using the point source model at 4941 grid locations in the Korean peninsula that resulted from the Gyeongju earthquake and from potential future earthquakes with the same hypocenter considering different soil conditions. Nonlinear response history analyses are conducted for each grid location using a three-story gravity-designed reinforced concrete (RC) frame that most closely represents conventional old school and public buildings. Then, contour maps are constructed to present the seismic risk associated with this building for the Gyeongju earthquake and potential future scenario earthquakes. These contour maps can be useful in the development of a mitigation plan for potential earthquake damage to school and public buildings at all grid locations on the Korean peninsula. | ||
| Key Words | ||
| ground motion; point source model; scenario earthquake; soil condition; moment frame; risk | ||
| Address | ||
| Hyun Woo Jee:Department of Architectural Engineering, Hanyang University, Seoul 04763, Republic of Korea Sang Whan Han:Department of Architectural Engineering, Hanyang University, Seoul 04763, Republic of Korea | ||