气候变化领域集成服务门户(CCPortal): Flow-based seismic risk assessment of a water transmission network employing probabilistic seismic hazard analysis

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DOI	10.1007/s11069-020-04352-7
	Flow-based seismic risk assessment of a water transmission network employing probabilistic seismic hazard analysis
	Yoon S.; Lee Y.-J.; Jung H.-J.
发表日期	2021
ISSN	0921030X
起始页码	1231
结束页码	1254
卷号	105 期号:2
英文摘要	In this study, a seismic risk assessment model was proposed to evaluate the seismic reliability of a water transmission network. The proposed risk assessment model involves earthquake generation and hydraulic analysis modules. To consider a comprehensive approach, the numerical simulation strategy includes probabilistic seismic hazard analysis, buried pipeline deterioration, numerical modeling of network facilities, and the interdependency between pumping plant and substation. For this purpose, a flow-based MATLAB code has been developed that enables iterative hydraulic analysis using EPANET software. For numerical simulation, the epicenter and earthquake magnitudes were determined based on probabilistic seismic hazard analysis, and a real water transmission network in South Korea was constructed. From the numerical results, two performance indicators (system serviceability and nodal serviceability) and four mean normal status ratios of facilities were adopted to evaluate the network performance. In addition, a component importance measure of facilities in a network system was calculated by introducing a reduction factor. The numerical results using the proposed flow-based model show that the system performance is affected by buried pipeline deterioration and network interdependency, as well as the location and magnitude of the input earthquake. It is thus concluded that the seismic risk assessment of a water transmission network should be performed using a model with a comprehensive approach. © 2020, Springer Nature B.V.
关键词	Flow-based network analysis Network interdependency Pipeline deterioration Probabilistic seismic hazard analysis Seismic risk assessment Water transmission network
英文关键词	computer simulation; distribution system; flow field; hazard assessment; network analysis; numerical model; pipeline; probability; reliability analysis; risk assessment; seismic hazard; software; structural response; water flow; water supply; South Korea
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206694
作者单位	Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, South Korea; Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan, 44919, South Korea
推荐引用方式 GB/T 7714	Yoon S.,Lee Y.-J.,Jung H.-J.. Flow-based seismic risk assessment of a water transmission network employing probabilistic seismic hazard analysis[J],2021,105(2).
APA	Yoon S.,Lee Y.-J.,&Jung H.-J..(2021).Flow-based seismic risk assessment of a water transmission network employing probabilistic seismic hazard analysis.Natural Hazards,105(2).
MLA	Yoon S.,et al."Flow-based seismic risk assessment of a water transmission network employing probabilistic seismic hazard analysis".Natural Hazards 105.2(2021).