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Seismic reliability analysis of urban water distribution network

机译：城市给水管网的抗震可靠性分析

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摘要

An approach to analyze the seismic reliability of water distribution networks by combining a hydraulic analysis with a first-order reliability method (FORM), is proposed in this paper. The hydraulic analysis method for normal conditions is modified to accommodate the special conditions necessary to perform a seismic hydraulic analysis. In order to calculate the leakage area and leaking flow of the pipelines in the hydraulic analysis method, a new leakage model established from the seismic response analysis of buried pipelines is presented. To validate the proposed approach, a network with 17 nodes and 24 pipelines is investigated in detail. The approach is also applied to an actual project consisting of 463 nodes and 767 pipelines. The results show that the proposed approach achieves satisfactory results in analyzing the seismic reliability of large-scale water distribution networks.
机译：提出了一种将水力分析与一阶可靠性方法（FORM）相结合的方法来分析配水管网的地震可靠性。修改了正常条件下的水力分析方法，以适应进行地震水力分析所需的特殊条件。为了利用水力分析方法计算管道的泄漏面积和泄漏流量，提出了一种基于埋地管道地震响应分析的泄漏模型。为了验证所提出的方法，详细研究了具有17个节点和24条管道的网络。该方法也适用于由463个节点和767个管道组成的实际项目。结果表明，该方法在分析大型配水管网的地震可靠度方面取得了令人满意的结果。

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