Ten dangerous operations that are easy to cause tower crane accidents?

What are the ten dangerous operations that are easy to cause tower crane accidents? Zhong Da Consulting will answer your questions below.

Tower crane is the most commonly used lifting and transportation equipment in construction site. It is named tower crane because it is composed of standard tower cranes like a tower. It is mainly used for hoisting building steel bars, wooden beams, scaffolding pipes and other materials. Safety is particularly important in the process of tower crane construction. So, summarize the following ten dangerous operations that easily lead to tower crane accidents:

(1) overload

As we all know, any machine has its load limit. Because lifting equipment has to overcome the influence of gravity to lift materials, it is forbidden to lift materials and raw materials that exceed the rated load of tower crane.

(2) Tilting crane

Crane inclination refers to the inclination of crane lane during hoisting, which is also the root cause of many great tragedies during the peak period. Therefore, in order to avoid accidents, the crane lane should be corrected as much as possible before hoisting operation.

(3) Hanging objects and standing people

Some construction workers like hitchhiking, which saves the trouble of taking the elevator or going upstairs when the tower crane lifts things. This behavior caused many people to fall from high altitude and even paid the price of blood.

(4) command signal is unknown

In the field management, the role of the commander is indispensable. Tower crane drivers should pay attention to, in the hoisting operation, there is no clear command signal, do not act without authorization.

(5) Buried parts

Due to the need of construction, tower crane has become the equipment to dismantle some underground components with its great pulling force. However, in view of the close connection between some buried components and the earth, the reaction force generated during hoisting will bend the tower and cause danger, so this operation should also be avoided.

(6) gale of magnitude 6 or above

The air velocity of the six-level wind is between 10.8 m/s and 13.8 m/s, which is relatively fast and is risky for tower crane operation. Therefore, this kind of operation should not be carried out rashly when the strong wind exceeds level 6.

(7) Installation device failure

Maintenance and adjustment of tower crane is essential, especially when the installation device fails, if it is started rashly, it will often lead to major safety accidents.

(8) The store cannot be seen clearly in the dark.

Because some projects need to catch up with the construction period, tower crane operation is also carried out at night when the light is dark, which is also very dangerous and should be prohibited.

(9) Bulk materials are too full or loosely bound.

During the lifting operation, bulk materials often overflow due to vibration. If the load is too full or the binding is not firm, the accident probability will rise sharply.

(10) Don't lift the edge of an object without protective measures.

The protective measures for the edge of hanging objects are very important, which is also an important content of the qualification examination for tower cranes. If there are no protective measures, once the hoisted object slips at high altitude, it will often pose a major threat to people and equipment on the ground.

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