Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Site Classification and Design Response Spectra for Seismic Code Provisions - (III) Verification

내진설계기준의 지반분류체계 및 설계응답스펙트럼 개선을 위한 연구 - (III) 검증

  • Cho, Hyung Ik (Department of Civil and Environmental Engineering, KAIST) ;
  • Satish, Manandhar (Department of Civil and Environmental Engineering, KAIST) ;
  • Kim, Dong Soo (Department of Civil and Environmental Engineering, KAIST)
  • 조형익 (KAIST 건설 및 환경공학과) ;
  • ;
  • 김동수 (KAIST 건설 및 환경공학과)
  • Received : 2016.02.26
  • Accepted : 2016.04.22
  • Published : 2016.07.01
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Abstract

In the companion papers (I, II), site-specific response analyses were performed at more than 300 domestic sites and a new site classification system and design response spectra (DRS) were proposed using the results of the site-specific response analyses. In this paper, the proposed site classification system and the design response spectra are compared with those in other seismic codes and verified by different methods. Firstly, the design response spectra are compared with the design response spectra in Eurocode 8, KBC 2016 and MOCT 1997 to estimate quantitative differences and general trends. Secondly, site-specific response analyses are carried out using $V_S$-profiles obtained using field seismic tests and the results are compared with the proposed DRS in order to reduce the uncertainty in using the SPT-N value in site-specific response analyses in the companion paper (I). In addition, site coefficients from real earthquake records measured in Korean peninsula are used to compare with the proposed site coefficients. Finally, dynamic centrifuge tests are also performed to simulate the representative Korean site conditions, such as shallow depth to bedrock and short-period amplification characteristics. The overall results showed that the proposed site classification system and design response spectra reasonably represented the site amplification characteristic of shallow bedrock condition in Korea.

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References

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