大跨度预应力渡槽盆式支座与刚性连接结构对比分析

Contrast analysis of large-span prestressed aqueduct basin-type bearing and rigid connection structure

随着施工技术的发展、施工方法的进步,许多在铁路、公路中常用的大跨度预应力建筑物施工方法在水利工程中开始应用,同时由于跨度的增加,不同的支座形式对大跨度渡槽体型和结构影响很大,本文就桥头渡槽采用盆式支座与刚性连接对渡槽结构的影响进行分析,针对不同荷载进行了对比研究,根据其优缺点,确定采用盆式支座。

Many commonly-used large-span prestressed building construction methods are applied in water resources projects with the development of construction technology and the progress of construction method. Meanwhile,different bearing forms have great influence on large-span aqueduct shape and structure due to span increase. In the paper,the influence of adopting basin-type bearing and rigid connection on aqueduct structure in bridge aqueduct is analyzed. Basintype bearing is adopted according to the result of the comparative study aiming at different loads.