论文部分内容阅读
常熟发电厂一期工程干煤棚系排框架式大跨度三角形钢桁架结构。钢桁架由２片平行钢屋架组合而成，其截面宽度为２．５ｍ，最大高度为７．５ｍ；每榀重量４０．４ｔ，安装在轴线跨度８４．１ｍ、高２５．５ｍ的钢筋混凝土框架双肢柱顶上。施工根据现有２台５０ｔ汽车吊的情况，将大跨度钢桁架分６段在地面制作，搭设活动龙门支撑作业架，高空拼装施工，不使用大型吊装机械，不搭设满堂脚手架，安全顺利地完成了吊装工作，并节省了费用。
The dry coal shed of the first phase of the Changshu Power Plant is a row-framed long-span triangular steel truss structure. The steel truss is composed of two parallel steel roof trusses with a section width of 2.5m and a maximum height of 7.5m. Each truss weighs 40.4t and is installed on a reinforced concrete frame with an axis span of 84.1m and a height of 25.5m. Double limbs on top. According to the conditions of the existing two 50t truck cranes, the large-span steel truss is divided into 6 sections on the ground and an active gantry supporting work platform is erected. The high-altitude construction is completed without the use of large lifting machinery or full scaffolding. It is completed safely and smoothly. Lifting work and saving money.