贝雷架在水电站大跨度板梁施工中的应用

Application of Bailey truss in the construction of long-span plate girder of hydropower station

马马崖一级水电站进水口、尾水出口板梁由于各种因素的限制,无法采用预制安装的施工方式,本文提出了以贝雷架为支撑,拉筋反拉的板梁整体现浇施工方案。该方案在保证板梁浇筑质量及施工安全的前提下,缩短了施工进度,节约了大型起重吊装设备租赁成本,效果良好。

Mamaya level I hydropower station water inlet and tail water outlet plate girder cannot be constructed in the mode of prefabricated installation due to restriction of various factors.Integral cast-in-place construction plans of plate girder are embodied with Bailey truss as support,which is pulled backwards by tie bars.The plan shortens the construction progress,and saves the lease cost of large hoisting equipment under the precondition of ensuring plate girder casting quality and construction safety,thereby achieving sound effect.