Earthquakes and Structures

  • 제19권2호
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  • Pages.79-90
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  • 2020
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Seismic fragility curves using pulse-like and spectrally equivalent ground-motion records

  • Surana, Mitesh (Department of Civil Engineering, Indian Institute of Technology Ropar)
  • 투고 : 2019.09.28
  • 심사 : 2020.08.07
  • 발행 : 2020.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

4- and 8-storey reinforced-concrete frame buildings are analyzed under the suites of the near-fault pulse-like, and the corresponding spectrally equivalent far-fault ground-motion records. Seismic fragility curves for the slight, moderate, extensive, and complete damage states are developed, and the damage probability matrices, and the mean loss ratios corresponding to the Design Basis Earthquake and the Maximum Considered Earthquake hazard levels are compared, for the investigated buildings and sets of ground-motion records. It is observed that the spectrally equivalent far-fault ground-motion records result in comparable estimates of the fragility curve parameters, as that of the near-fault pulse-like ground-motion records. As a result, the derived damage probability matrices and mean loss ratios using two suites of ground-motion records differ only marginally (of the order of ~10%) for the investigated levels of seismic hazard, thus, implying the potential for application of the spectrally equivalent ground-motion records, for seismic fragility and risk assessment at the near-fault sites.

키워드

과제정보

The work presented in this manuscript was financially supported by ISIRD Grant (F. No. 9-385/2019/IITRPR/3220) of IIT Ropar. The ground-motion records used in this study were obtained from PEER NGA WEST 2 Database. Author would also like to express his thanks to two anonymous reviewers for very constructive comments and suggestions to improve the manuscript.

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