Wind Resistance Issues to be Considered in Crane Design

Proposition of the Problem of Crane Wind Resistance

Henan Dongqi Machinery Co., Ltd. is a large-scale mechanical equipment company engaged in crane research, production, sales and after-sales integration. The production of each crane equipment of our company is subject to strict quality control. Today's article will briefly explain the wind resistance issues to be considered when designing a crane.

The wind resistance performance of the crane is an important issue that should be considered when the crane is designed. In China, according to the safety regulations and regulations of relevant departments, the wind resistance safety capabilities that cranes should have are specified. However, when the crane equipment faces extreme weather with strong winds, some accidents often occur. For example, wind damage accidents of rail cranes in large ports often occur, and in severe cases, several cranes collapse into the sea together.

In the face of the accident, people have reason to doubt the correctness of the regulations of the relevant departments and the industry theory. After a series of experiments and practices, it is understandable to put forward new theoretical suggestions and launch new anti-wind devices. At the same time, carefully and objectively analyzing the cause of the accident, looking for the common points of the accident, and solving the problem scientifically and thoroughly are also for the benefit of the development of the entire industry.

Common Problems of Cranes in Wind Disasters

What are the common denominators of crane hurricane accidents? First, the quantification of the wind level at the hurricane disaster site is very vague. People usually say that the wind is very strong, but no one can tell how big the wind is. However, there are no weather records of extreme winds, such as winds over magnitude 12, from the local weather bureau. The local wind disaster photos and surveillance videos were compared with the descriptions of winds at all levels in the Beaufort Wind Scale, and it was found that the wind at all accident sites did not exceed 10 level. So how can winds with not very strong wind levels blow over the crane? Confused people suggested that the wind at the site of the crane wind damage was not a normal wind, but a squall line wind or a wind such as a tornado. Maybe there is this kind of wind, but this kind of wind seems to be blowing specifically towards the crane, even if the trees and buildings are close at hand, it is a little strange.

Also common to the accidents is that almost all crane equipment undergoes a skid before being blown over by the wind. Therefore, it is more known that the brake of the crane is very important for a lifting equipment. The brake is an important safety component of the overhead crane, it can prevent the hanging objects from falling, realize the stop of the lifting equipment and so on. Only perfect brakes can ensure the accuracy and safety of crane operation. Otherwise, when carrying out lifting operations, the crane will have mechanical failures such as insufficient braking force, sudden brake failure, overheating of brake wheels, smoke from brake pads, and brake arm failure.

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Why Custom a Crane Solution?

At Yuantai, we know that there is no "one size fits all" in the lifting field. Universal cranes are suitable for general factories, warehouses, etc. Besides, different applications have different needs for cranes. For example, steel industries often lift steel plates, so need electromagnetic cranes. Ports and docks often need to load ore, gravel, and other bulk goods, so need to grab bucket cranes. Chemical dangerous places often need to carry flammable and explosive materials, so need explosion proof cranes.

So, we provide customized cranes according to the special needs of our customers. Custom crane solutions offer many benefits in a variety of applications：

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