SEISMIC RELIABILITY ANALYSIS OF LIFELINE NETWORKS

摘要：

The seismic reliability analysis of lifeline networks has received considerable attention and been widely studied. In this paper, two probabilistic analytical approachs, a path-based recursive decomposition algorithm and a cut-based recursive decomposition algorithm, are presented to evaluate seismic reliability of large lifeline systems. The path-based recursive decomposition algorithm takes the shortest path of network as decomposition policy, using the Boolean laws of set operation and the probabilistic operation principal, the disjoint minimal path set and the disjoint minimal cut set are enumerated simultaneously. Similarily, the cut-based recursive decomposition algorithm takes the minimal cut as decomposition policy and enumerates the disjoint minimal path set and the disjoint minimal cut set too. As the result, a probabilistic inequality can be used to give the results which satisfy prescribed error bound. For the network owning s-independence component in its component set, two network reduction techniques are introduced to speed up the algorithm. An example is calculated using the proposed algorithms and the efficiency of two algorithms arecompared.

关键词： Reliability Structural function Path-based recursive decomposition algorithm Cut-based recursive decomposition algorithm Probability inequality Network reduction technique

作者: Wei Liu Jie Li

作者单位: Building Engineering Department, Tongji University, Shanghai 200092, P.R. China Building Engineering Department, Tongji University, Shanghai 200092, P.R. China State Key Laboratory

会议类型: 国际会议

会议名称: 第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)

会议地点: 长沙

会议语种:英文

页码: 1365-1371

在线出版日期: 2008-10-19（万方平台首次上网日期，不代表论文的发表时间）