Is widely used tower crane used in the construction field, often in the course of construction will occur in a number of security incidents. We have to do in addition to security, maintenance and other work, but also need to understand some of the common action of the accident.
A: the foundation is not solid lead to accidents. The foundation is necessary to ensure the safety of tower cranes working late, but soft ground, leading to a tower crane collapse are all dumping incidents occurred culprit. Measures: Once the staff found the crane foundation subsidence occurs, they should immediately stop working, lock and rotating mechanism, limit its rotation. Survey reality set anchor, thereby preventing further tilted crane.
II: tower crane folding arm situation occurs, the balance arm is a major part of the crane work site, and boom crane is the main body belongs to maintain balance. Once the situation crane folding arm appeared, we should immediately cease any action and launched rescue and relief work in accordance with the specific program development. Common treatment measures: the broken parts of the welding work, or crane structure is coupled with other objects, effectively avoid accidents during the maintenance crane accident.
Three: tower crane rollover accident occurred. Without damaging imbalance in the force, torque balanced approach taken to increase, and thus play a controlled dangerous situation occurs secondary accidents.
Four: the tower structure permanent deformation, fracture and other abnormalities failure, depending on the situation unfold will be deformed or damaged structure or connection means such as welding reinforcement.