基于用户综合重要度的城市供水管网抗震性能化设计

发布时间：2018-01-20 04:58

本文关键词： 供水管网抗震优化设计用户综合重要度网络拓扑结构管段抗震能力　出处：《土木工程学报》2015年05期 　论文类型：期刊论文

【摘要】：提出按照用户节点重要度进行供水管网抗震性能化设计的方法,以不同重要度用户的抗震保障能力需求为设计目标,以管网拓扑结构和管段抗震能力为设计参数。建立以常态运行功能、震后救灾功能和网络拓扑结构为基础的用户节点重要度评价指标体系,采用多属性决策方法耦合计算用户综合重要度。根据管段造价系数、接口位移和抗震可靠度的对应关系,分析管段抗震能力"成本-效益"变化曲线。采用可考虑拓扑冗余度的优化分配模型确定管网的设计参数,以某城市供水管网为例进行管网抗震参数优化设计,验证了该方法的有效性。
[Abstract]:According to the importance of the user node, the method of seismic performance design of water supply network is put forward, and the design goal is the requirement of the user's seismic support ability of different importance degree. Based on the topological structure of the pipe network and the seismic capacity of the pipe segment, the evaluation index system of the importance of the user node is established based on the normal operation function, the post-earthquake disaster relief function and the network topology structure. The multi-attribute decision method is used to calculate the comprehensive importance of the user. According to the cost coefficient of the pipe segment, the relationship between the interface displacement and the seismic reliability. The variation curve of "cost benefit" of seismic capacity of pipe segment is analyzed. The optimal distribution model considering topological redundancy is adopted to determine the design parameters of pipe network, and the optimum design of seismic parameters of pipe network is carried out by taking a water supply network in a city as an example. The effectiveness of the method is verified.
【作者单位】：北京工业大学城市与工程安全减灾教育部重点实验室;北京工业大学抗震减灾研究所;
【基金】：国家自然科学基金(51421005,51208017,51278017)
【分类号】：TU991.33
【正文快照】： 引言在工程抗震设计发展过程中,提出了基于设防目标进行性能化设计的理念[1]。这在供水系统的抗震设计规范(指南)中也有所体现,日本JWWA水道施设耐震工法指针[2]综合考虑了震前、震后应急等不同阶段管网的服务需求进行管线重要性分类,并规定了相应的管线结构抗震设防目标和地

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