Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Evaluation of Seismic Load Level in Korea based on Global Recorded Earthquake Ground Motions

세계지진기록에 근거한 우리나라의 지진하중 평가

  • Hwang, Kyung Ran (School of Civil, Environmental, and Architectural Engineering, Korea University) ;
  • Lee, Han Seon (School of Civil, Environmental, and Architectural Engineering, Korea University) ;
  • Kim, Sung Jig (Department of Architectural Engineering, Keimyung University)
  • 황경란 (고려대학교 건축사회환경공학부) ;
  • 이한선 (고려대학교 건축사회환경공학부) ;
  • 김승직 (계명대학교, 건축공학과)
  • Received : 2015.05.04
  • Accepted : 2015.07.21
  • Published : 2015.09.07
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Abstract

This paper briefly introduces the design seismic loads in Korea (KBC 2009). Then, over 10,000 recorded earthquake ground accelerograms, with their magnitude ranging from 4.0 to 8.0 and their epicentral distance ranging from 0 to 200 km, were used to examine the appropriateness of seismic load defined in Korea known as a low-to-moderate seismicity region. The following conclusions are drawn based on the results: (1) The effective peak ground accelerations (EPA) of recorded earthquake accelerograms under $M{\leq}6.0$ and $R{\geq}15km$ appear to be less than that of MCE in Korea for all site conditions defined in KBC 2009. (2) The design spectrum (two-thirds of the intensity of MCE) in KBC 2009 is comparable to those of earthquake records in the magnitude 6 - 7 and the epicentral distance less than 50 km. Therefore, (3) the intensity of Korean design earthquake is considered to be overly high since the Korea peninsula is generally conceived to be a low-seismicity region.

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References

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