具有中间弹性支承的网架桥(英文)

在结构工程中，空间网架已广泛地用于大跨屋盖结构．本文在阐述空间网架结构的优点及现有桥梁结构平面受力机理的基础上，分析了网架用于桥梁工程的可能性及合理结构形式（如具有中间弹性支承的网架系杆拱桥和网架斜拉桥）．计算和分析表明，网架用作桥梁结构具有整体性好、刚度大、受力均匀、抗震性好和用钢量少的特点．

Reliability investigation of demolition initiation network for urban viaduct

This paper presented the delay characteristics of relay point detonator used in multiple parallel initiation networks and proposed the simple formula to calculate expectations of relay point initiation time.Corresponding reliability standards were established based on the different scale of non-electric initiation network.A multiple parallel initiation network were created,which could not only avoid the occurrence of the viaduct rollover during dumping process,but also improve the reliability standard and realize the unlimited segmentation.Results could provide a good reference for the design of viaduct blasting initiation network.