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Optimal design of water supply networks for enhancing seismic reliability

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  • Yoo, Do Guen
  • Kang, Doosun
  • Kim, Joong Hoon

Abstract

The goal of the present study is to construct a reliability evaluation model of a water supply system taking seismic hazards and present techniques to enhance hydraulic reliability of the design into consideration. To maximize seismic reliability with limited budgets, an optimal design model is developed using an optimization technique called harmony search (HS). The model is applied to actual water supply systems to determine pipe diameters that can maximize seismic reliability. The reliabilities between the optimal design and existing designs were compared and analyzed. The optimal design would both enhance reliability by approximately 8.9% and have a construction cost of approximately 1.3% less than current pipe construction cost. In addition, the reinforcement of the durability of individual pipes without considering the system produced ineffective results in terms of both cost and reliability. Therefore, to increase the supply ability of the entire system, optimized pipe diameter combinations should be derived. Systems in which normal status hydraulic stability and abnormal status available demand could be maximally secured if configured through the optimal design.

Suggested Citation

  • Yoo, Do Guen & Kang, Doosun & Kim, Joong Hoon, 2016. "Optimal design of water supply networks for enhancing seismic reliability," Reliability Engineering and System Safety, Elsevier, vol. 146(C), pages 79-88.
    • Handle: RePEc:eee:reensy:v:146:y:2016:i:c:p:79-88
    DOI: 10.1016/j.ress.2015.10.001
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    References listed on IDEAS

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    1. Adachi, Takao & Ellingwood, Bruce R., 2008. "Serviceability of earthquake-damaged water systems: Effects of electrical power availability and power backup systems on system vulnerability," Reliability Engineering and System Safety, Elsevier, vol. 93(1), pages 78-88.
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    1. Bistouni, Fathollah & Jahanshahi, Mohsen, 2017. "Remove and contraction: A novel method for calculating the reliability of Ethernet ring mesh networks," Reliability Engineering and System Safety, Elsevier, vol. 167(C), pages 362-375.
    2. Jeongwook Choi & Do Guen Yoo & Doosun Kang, 2018. "Post-Earthquake Restoration Simulation Model for Water Supply Networks," Sustainability, MDPI, vol. 10(10), pages 1-17, October.
    3. Jeongwook Choi & Doosun Kang, 2020. "Improved Hydraulic Simulation of Valve Layout Effects on Post-Earthquake Restoration of a Water Distribution Network," Sustainability, MDPI, vol. 12(8), pages 1-20, April.
    4. Xiang He & Yongbo Yuan, 2019. "A Framework of Identifying Critical Water Distribution Pipelines from Recovery Resilience," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 33(11), pages 3691-3706, September.
    5. Chan-Wook Lee & Do-Guen Yoo, 2023. "Comparative Study on Strategies for the Division of Earthquake-Proof Strengthening Segments to Reinforce the Reliability of Water Supply Systems," Sustainability, MDPI, vol. 15(8), pages 1-18, April.

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