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黑龙江化工厂中氮改造工程，动力区锅炉房屋顶共有１４榀钢屋架，每榀重２．５ｔ，跨度２１ｍ，天窗架１０榀，每榀重０．３５ｔ，最高点标高４１．６ｍ，锅炉设备和土建框架是同时进行的，必须跨外安装钢屋架，而且屋架下边有钢筋混凝土连系梁，增加了吊装半径，北侧距屋...
Heilongjiang Chemical Plant’s nitrogen transformation project, the power zone boiler roof a total of 14 steel roof trusses, each weigh 2.5t, span 21m, skylight frame 10 榀, each weighs 0.35t, the highest point elevation 41.6m, boiler equipment And the civil framework is carried out at the same time, must be installed outside the steel roof truss, but also under the truss with reinforced concrete connecting beam, increasing the lifting radius, the distance from the north side of the house ...