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由于跨座式单轨具有造价低、节省工期、施工方便、噪音小等特点,已被越来越多地应用在我国轨道线路中。跨座式单轨桥梁的标准梁型为PC轨道梁,其在自身预应力荷载下的横向稳定性较弱,跨径只能达到25m,对实现路口的跨越有很大的局限性。本文通过从美观、经济、跨越能力、对交通的影响、施工难易程度及施工速度、力学性能等方面对跨路口方案进行比选,以获得较适宜的方案,作为今后类似工程的参考。
Because straddle monorail has the characteristics of low cost, saving time, convenient construction, low noise and so on, it has been more and more used in the track of our country. The standard beam type of the straddle monorail bridge is a PC track beam, whose transverse stability under its own prestressing load is weak, and the span length can only reach 25m, which has great limitation to the crossing of the crossing. In this paper, the cross-junction schemes are compared and selected from aspects of aesthetics, economy, capability of crossing, impact on traffic, ease of construction and speed of construction, mechanical properties and so on, so as to obtain a more suitable scheme as a reference for similar projects in the future.