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简易的金属结构独脚扒杆、人字扒杆、摇臂扒杆、人字桅杆式起重扒杆等一般均采用圆形钢管组合而成(图1),在中小型农田水利工程施工吊装中被广泛采用.随着农田水利建设事业的发展,施工吊装的构件越来越重,施工单位原有的钢管扒杆已不能适应.采购大设备所需资金甚多,旧设备搁置不用亦是浪费,建议将原有起重钢管予以适当加强,提高其起吊能力,以适应水利工程发展的需要。
Simple metal structure strider bar, miter strut bar, rocker bar strut, gable mast type lifting bar and other general use of a combination of circular steel pipe (Figure 1), in small and medium-sized farmland water conservancy construction hoisting Is widely used.With the development of farmland water conservancy construction, the construction of lifting components more and more heavy, the original unit of the construction unit can not adapt to the steel rod.Procurement of large equipment required much, the old equipment is not shelved Waste, it is recommended that the original lifting pipe be appropriately strengthened to enhance its lifting capacity to meet the needs of the development of hydraulic engineering.