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Title |
A Seismic Capacity of R/C Building Damaged by the 2016 Gyeongju Earthquake Based on the Non-linear Dynamic Analysis
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Authors |
정주성(Ju-Seong Jung) ; 이강석(Kang Seok Lee) |
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DOI |
https://doi.org/10.11112/jksmi.2018.22.1.137 |
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Keywords |
경주지진 ; 철근콘크리트 ; 내진성능 ; 지진피해도 ; 비선형동적해석 ; 지진피해도구분판정 Gyeongju earthquake ; Reinforced concrete ; Seismic capacity ; Damage level ; Non-linear dynamic analysis ; Post-earthquake damage evaluation |
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Abstract |
On September 12, 2016, the Gyeongju District was strongly shaken with M=5.8, which was the largest one since measured by the actual seismometer in Korea, and some buildings were damaged. The field survey of reinforced concrete school buildings in the affected area was carried out, and their residual seismic capacities(R) were estimated based on the Japanese Standard for post-earthquake damage evaluation. In this study, the M school, which was greatly damaged by the 2016 Gyeongju Earthquake, was selected, and its damage level was evaluated on the basis of the Japanese Standard. The seismic capacity of the M school was also evaluated using the nonlinear dynamic analysis, and relationships between its damage level and seismic capacity was also conducted to investigate causes of earthquake damage. The damage level of M school was classified into light with R=88.2%. The result of the dynamic analysis agreed reasonably well with the damage of M school sustained by the 2016 Gyeongju earthquake. This will provide fundamental data for earthquake preparedness measures, such as the seismic rehabilitation of low-rise reinforced concrete buildings in Korea.
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