利用吊车大规模整体组立500kV线路铁塔

Technique on Integral Assembly for 500kV Transmission Tower by Hoist

针对东北平原冬季便于大型机械机动的特点,采用大型吊车进行500 kV线路铁塔组立施工。通过对铁塔重心、吊车承载力、吊点螺栓受力、钢绳最大拉力、钢板抗拉能力、螺栓连接中心距等理论计算,设计了整体吊装方案,为500 kV线路铁塔组立施工拓展了施工方法,可大大提高施工进度,减少安全隐患。

In view of the characteristics of being convenient for big machine moving on the Northeast Plain, the integral assembly construction is adopted for 500 kV transmission tower by hoist. Through the theoretical calculation of the steel tower core, the hoist bearing capacity, the suspending point bolt stressing, the steel wire rope maximum working tension, the plate tensile stress and the bolt joint center distance, the assembly scheme by hoist is designed. The construction methods are spreaded on integral assembly construction for 500 kV transmission tower. The construction progress is fasted greatly and the failure is decreased greatly.