DOI: 10.1007/s11069-020-04352-7
论文题名: Flow-based seismic risk assessment of a water transmission network employing probabilistic seismic hazard analysis
作者: Yoon S. ; Lee Y.-J. ; Jung H.-J.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 105, 期: 2 起始页码: 1231
结束页码: 1254
语种: 英语
中文关键词: 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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169493
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Yoon S.,Lee Y.-J.,Jung H.-J.. Flow-based seismic risk assessment of a water transmission network employing probabilistic seismic hazard analysis[J]. Natural Hazards,2021-01-01,105(2)