1985年,官厅水库溢洪道扩建工程进入施工决战阶段。4月份,官厅联合防汛会议决定:由于闸上公路桥未铺设,为了保证汛期溢洪道水过时两岸防汛抢险车辆通行,汛前必须在溢洪道上架好一道临时钢桥。6月25日,部、市领导来官厅检查防汛工程时,要在新建的钢桥上通过。经设计,正桥跨度39米余,桥面至溢洪道底板高20余米,总重58吨。如何把这么大的组合钢桥,在两三天时间里架设起来,确是一大难题。根据第二工程局当时的起吊设备能力,桥的钢梁不可能一次吊上就位。如加桥墩,做混凝土的,时间不充许;用钢柱墩,材料、技术都有困难。局领导决定,学习解放军工程兵部队的架桥办法,在一岸将钢桥拼装好,用卷扬机牵引过河。这就必须在桥的前端加装鼻架桥,后部压配重。恰好附近有工程兵部队,可借架桥工具,遗憾的是不能来人指导。局领导下令:借工具自己架设。 6月上旬,架桥用具都借来了。但鼻架桥的桥面宽度 In 1985, Guanting reservoir spillway expansion project into the decisive battle stage. In April, the Guandong Joint Flood Control Conference decided that due to the un-laying of the bridge on the gate, a temporary steel bridge must be set up on the spillway before the flood season in order to ensure the passage of the flood control emergency vehicles on both sides of the flood spillway in flood season. June 25, ministries and municipal leaders to check the flood control project to the government, to be adopted in the new steel bridge. The design, the bridge span more than 39 meters, deck to spillway floor 20 meters high, weighing 58 tons. How to put such a large steel bridge in two or three days to set up, is indeed a big problem. According to the capacity of lifting equipment of the Second Engineering Bureau at that time, the steel girder of the bridge can not be hung up once. Such as adding piers, concrete, the time is not allowed; with steel piers, materials, technology is difficult. Bureau leadership decided to study the construction of the People’s Liberation Army Corps bridge approach, in a steel bridge assembled, with hoist traction across the river. This must be installed in the bridge nose bridge, rear press weight. It is regrettable that you can not come for guidance just by having the Corps of Engineers nearby. Bureau leadership ordered: to build their own tools. In early June, bridging appliances are borrowed. But Nose Bridge deck width