Nuclear Engineering and Technology

  • 제53권7호
  • /
  • Pages.2396-2406
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  • 2021
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Performance-based earthquake engineering methodology for seismic analysis of nuclear cable tray system

  • Huang, Baofeng (School of Civil Engineering, Shanghai Normal University)
  • 투고 : 2019.10.15
  • 심사 : 2021.01.17
  • 발행 : 2021.07.25
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초록

The Pacific Earthquake Engineering Research (PEER) Center has been developing a performance-based earthquake engineering (PBEE) methodology, which is based on explicit determination of performance, e.g., monetary losses, in a probabilistic manner where uncertainties in earthquake ground motion, structural response, damage estimation, and losses are explicitly considered. To carry out the PEER PBEE procedure for a component of the nuclear power plant (NPP) such as the cable tray system, hazard curve and spectra were defined for two hazard levels of the ground motions, namely, operation basis earthquake, and safe shutdown earthquake. Accordingly, two sets of spectral compatible ground motions were selected for dynamic analysis of the cable tray system. In general, the PBEE analysis of the cable tray in NPP was introduced where the resulting floor motions from the time history analysis (THA) of the NPP structure should be used as the input motion to the cable tray. However, for simplicity, a finite element model of the cable tray was developed for THA under the effect of the selected ground motions. Based on the structural analysis results, fragility curves were generated in terms of specific engineering demand parameters. Loss analysis was performed considering monetary losses corresponding to the predefined damage states. Then, overall losses were evaluated for different damage groups using the PEER PBEE methodology.

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과제정보

The authors are grateful for the support from China National Science and Technology Major Project through grant number 2018YFC0705701, China National Science Foundation through grant number 51608381. The authors thank Zhenyu Yang, Chenglong Li, Benshun Shao, Selim Gunay, and Andreas Schellenberg for their scientific inputs.

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피인용 문헌

  1. Collapse fragility due to near-field directivity ground motions: Influence of component, rupture distance, hypocenter location vol.34, 2021, https://doi.org/10.1016/j.istruc.2021.09.096