Research on Load Swing and Rotation Control Techniques during Transmission Line Tower Erection

In order to address significant risks and low accuracy associated with manual control over load swing and rotation during transmission line tower lifting for erection, research was undertaken on the load swing and rotation control techniques. Through the systematic design of assisted lifting equipment tailored to tower erection, both the hardware composition and the control system for swing and rotation control during lifting operation were proposed. Coupled with a mechanical equilibrium analysis of the lifting system, tension calculation methods applicable to lifting with single and double control ropes were introduced. Upgrading from manual dragging control ropes to automatically controlled traction units for precise tension adjustments of control ropes facilitated automatic control over load swing and rotation, which not only reduces the labor intensity of workers but also lowers construction safety risks.