在某一工业锅炉车间的屋顶上有一台除尘器,要换为一台重量大得多的除尘器,需要加固两榀钢屋架和四根柱子,而且车间不能停工。加固的方案是建立在保持原有铆接的钢屋架不受损伤的基础上的。桁架杆件和柱子要在建筑物承受荷载的状态下进行加固。由于荷载增大了,有附加材料的结构构 There is a dust collector on the roof of an industrial boiler plant. To replace it with a much heavier dust collector, two steel roof trusses and four pillars need to be reinforced, and the workshop cannot be stopped. The reinforcement scheme is based on maintaining the original riveted steel roof trusses from damage. Truss members and columns are to be reinforced when the building is under load. As the load increases, there is an additional material structure