中文摘要：

针对含关节点的工程网络可靠性分析，提出了1种冗余子网消除技术。这种简化技术利用关节点进行冗余子网识别和删除，因此网络可靠性可以在精简网络上快速计算。选取USAi07数据集的部分网络进行试验。试验结果表明，利用冗余子网消除技术，可大量降低网络可靠性的计算时间，从而提高网络可靠性分析算法的性能。

英文摘要：

A redundant subnetwork reducing technique was presented for the reliability analysis of infrastructure net- works containning articulate nodes. This simplification technique could identify and delete the redundant subnetwork based on articulate nodes, and thus the network reliability could be calculated very quickly based on a reduced network. According to the experimental results on some selected networks from USAir97 benchmark, the redundant subnetwork reducing method could achieve a great reduction on computing time for reliability calculation. Thus the performance of infrastructure networks reliability analysis could be greatly enhanced.