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Seismic Risk Assessment of Existing Low-rise Reinforced Concrete Buildings in Korea
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Type
Academic journal
Author
Kang Seok LEE (Hanyang University) Ju-Seong Jung (Hanyang University) Yun-Chul Choi (Hanyang University)
Journal
ARCHITECTURAL INSTITUTE OF KOREA Architectural Research Vol.20 No.1 KCI Accredited Journals
Published
2018.3
Pages
17 - 25 (9page)

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Seismic Risk Assessment of Existing Low-rise Reinforced Concrete Buildings in Korea
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Abstract· Keywords

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Countermeasures against earthquake disasters such as the seismic capacity evaluation and/or retrofit schemes of buildings, especially existing low-rise reinforced concrete buildings, have not been fully performed since Korea had not experienced many destructive earthquakes in the past. However, due to more than 1200 earthquakes with low or moderate intensity in the off-coastal and inland of Korea during the past 20 years, and due to the recent moderate earthquakes in Korea, such as the 2016 Gyeongju Earthquake with M=5.8 and the 2017 Pohang Earthquake with M=5.4, the importance of the future earthquake preparedness measures is highly recognized in Korea. The main objective of this study is to provide the basic information regarding seismic capacities of existing low-rise reinforced concrete buildings in Korea. In this paper, seismic capacities of 14 existing low-rise reinforced concrete public buildings in Korea are evaluated based on the Japanese Standard for Evaluation of Seismic Capacity of Existing Reinforced Concrete Buildings. Seismic capacities between existing buildings in Korea and those in Japan is compared, and the relationship of seismic vulnerability of Korean buildings and Japanese buildings damaged due to severe earthquakes are also discussed. Results indicated that Korean existing low-rise reinforced concrete buildings have a narrow distribution of seismic capacities and they are relatively lower than Japanese buildings, and are also expected to have severe damage under the earthquake intensity level experienced in Japan. It should be noted from the research results that the high ductility in Korean existing low-rise buildings obtained from the Japanese Standard may be overestimated, because most buildings investigated herein have the hoop spacing wider than 30 cm. In the future, the modification of strength and ductility indices in the Japanese Standard to propose the seismic capacity evaluation method of Korean buildings is most needed.
#Low-Rise Reinforced Concrete Buildings #Seismic Capacity #Strength Index #Ductility Index #Seismic Vulnerability

Contents

Abstract
1. Introduction
2. Investigated buildings
3. Seismic capacity of existing rc buil dings in korea
4. Concluding remarks
REFERENCES

References (13)

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JBDPA. (2001) Standard for Evaluation of Seismic Capacity of Existing Reinforced Concrete Buildings. Tokyo, Japan: Japan Building Disaster Prevention Association, p.300. JBDPA. (2005) Standard for Seismic Evaluation of Existing Reinforced Concrete Buildings, Guidelines for Seismic Retrofit of Existing Reinforced Concrete Buildings, and Technical Manual for Seismic Evaluation and Seismic Retrofit of Existing Reinforced Concrete Buildings. Tokyo, Japan: Japan Building Disaster Prevention Association, p.200. SPRC Committee. (1980) Computational Program for Seismic Evaluation of Existing Reinforced Concrete Buildings (Screen Edition-2). Tokyo, Japan: Japan Building Disaster Prevention Association. Lee, K.S., Nakano, Y., Kumazawa, F., Okada, T. (1996a) A Study on Seismic Capacity of Existing Reinforced Concrete Buildings. Journal of Institute of Industrial Science (Seisan- Kenkyu), 48(11), University of Tokyo, 10-20. AIJ. (2010) Design Code of Reinforced Concrete Buildings. Tokyo, Japan: Architectural Institute of Japan, p.340.

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UCI(KEPA) : I410-ECN-0101-2018-540-001916316