Earthquakes and Structures

  • 제15권3호
  • /
  • Pages.295-306
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  • 2018
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

The capacity loss of a RCC building under mainshock-aftershock seismic sequences

  • Zhai, Chang-Hai (School of Civil Engineering, Harbin Institute of Technology) ;
  • Zheng, Zhi (College of Architecture and Civil Engineering, Taiyuan University of Technology) ;
  • Li, Shuang (School of Civil Engineering, Harbin Institute of Technology) ;
  • Pan, Xiaolan (College of Architecture and Civil Engineering, Taiyuan University of Technology)
  • 투고 : 2016.12.29
  • 심사 : 2018.06.26
  • 발행 : 2018.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

Reinforced concrete containment (RCC) building has long been considered as the last barrier for keeping the radiation from leaking into the environment. It is important to quantify the performance of these structures and facilities considering extreme conditions. However, the preceding research on evaluating nuclear power plant (NPP) structures, particularly considering mainshock-aftershock seismic sequences, is deficient. Therefore, this manuscript serves to investigate the seismic fragility of a typical RCC building subjected to mainshock-aftershock seismic sequences. The implementation of the fragility assessment has been performed based on the incremental dynamic analysis (IDA) method. A lumped mass RCC model considering the tri-linear skeleton curve and the maximum point-oriented hysteretic rule is employed for IDA analyses. The results indicate that the seismic capacity of the RCC building would be overestimated without taking into account the mainshock-aftershock effects. It is also found that the seismic capacity of the RCC building decreases with the increase of the relative intensity of aftershock ground motions to mainshock ground motions. In addition, the effects of artificial mainshock-aftershock ground motions generated from the repeated and randomized approaches and the polarity of the aftershock with respect to the mainshock on the evaluation of the RCC are also researched, respectively.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

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피인용 문헌

  1. Effects of Aftershocks on the Potential Damage of FRP-Retrofitted Reinforced Concrete Structures vol.18, pp.11, 2018, https://doi.org/10.1007/s40999-020-00533-4