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Fragility Assessments of Multi-Story Piping Systems within a Seismically Isolated Low-Rise Building

Author

Listed:
  • Yonghee Ryu

    (Department of Civil Engineering, North Carolina State University, Raleigh, NC 27695, USA)

  • Shinyoung Kwag

    (Korea Atomic Energy Research Institute, Daejeon 34057, Korea)

  • Bu‐Seog Ju

    (Department of Civil Engineering, Kyung Hee University, YongIn-Si, Gyeonggi-Do 17104, Korea)

Abstract

A successful, advanced safety design method for building and piping structures is related to its functionality and sustainability in beyond-design-basis events such as extremely strong ground motions. This study develops analytical models of seismically isolated building-piping systems in which multi-story piping systems are installed in non-isolated and base-isolated, low-rise buildings. To achieve the sustainable design of a multi-story piping system subjected to strong ground motions, Triple Friction Pendulum (TFP) elements, specifically TFP bearings, were incorporated into the latter building structure. Then, a seismic fragility analysis was performed in consideration of the uncertainty of the seismic ground motions, and the piping fragilities for the seismically non-isolated and the base-isolated building models were quantified. Here, the failure probability of the piping system in the non-isolated building was greater than that in the seismically isolated building. The seismic isolation design of the building improved the sustainability and functionality of the piping system by significantly reducing the seismic energy of extreme ground motions which was input to the building structure itself.

Suggested Citation

  • Yonghee Ryu & Shinyoung Kwag & Bu‐Seog Ju, 2018. "Fragility Assessments of Multi-Story Piping Systems within a Seismically Isolated Low-Rise Building," Sustainability, MDPI, vol. 10(10), pages 1-16, October.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:10:p:3775-:d:176747
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    Cited by:

    1. Kwag, Shinyoung & Park, Junhee & Choi, In-Kil, 2020. "Development of efficient complete-sampling-based seismic PSA method for nuclear power plant," Reliability Engineering and System Safety, Elsevier, vol. 197(C).
    2. Jahangir Hossain & Aida. F. A. Kadir & Ainain. N. Hanafi & Hussain Shareef & Tamer Khatib & Kyairul. A. Baharin & Mohamad. F. Sulaima, 2023. "A Review on Optimal Energy Management in Commercial Buildings," Energies, MDPI, vol. 16(4), pages 1-40, February.

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