How to prevent tower cranes from tipping

Tower crane, also known as tower crane, as an important carrying equipment in the field of construction sites and 
transportation and logistics, is often carrying the weight of large institutions, which also brings its capsizing accident
can not be ignored.

Generally speaking, in the operation process, the tower crane height and the bottom support size ratio is large, and the
tower body center of gravity is high, torque is large, start braking frequently, the impact force is large, all these are the 
important reasons for the capsizing. Therefore, the network points out that the best way to prevent the tower crane from
capsizing is to improve from the following three aspects:

1. Overload is strictly prohibited. In the tower crane market, it is a well-known fact that the higher the rent or purchase

price of tower crane is, the higher the rated load is. However, in the design of tower crane, tower crane manufacturers
often design a certain degree of theoretical overload, to adapt to the actual requirements of construction operations. 
But it also offers some lucky crane companies and drivers a chance to save money. In fact, cranes of different types are
usually controlled mainly by lifting torque. When the working range is increased or the weight exceeds the corresponding
rated load, the overturning moment of the weight exceeds its stable moment, which may cause tower crane collapse. 
Therefore, this is very dangerous behavior.

Avoid slant hanging. In the case of heavy wind and complicated hoisting road, tower crane drivers often take the method 

of inclined lifting to transport the materials that need to be lifted in a hurry, which is also a very dangerous behavior. After
all, the inclined crane will increase its overturning moment, generate horizontal and vertical force components at the lifting
point, and generate an additional overturning moment at the support point at the bottom of the tower crane, thereby 
reducing the stability factor and causing the tower crane to collapse. Therefore, before lifting heavy objects, in addition to 
maintaining its weight does not exceed the rated load of the tower crane, should also establish a vertical hanging road, avoid
inclined lifting as far as possible, it is forbidden to work in high winds above six levels, so as to maximize the risk caused by
the inclined lifting.

Flatten the foundation of tower crane, avoid soft soil and soil leveller. In addition to bearing its own gravity, the tower crane 
also bears the pressure brought by heavy weights when it is hoisted. Therefore, uneven foundation and insufficient ground 
endurance of the tower crane are also important reasons for its overturn. Because, under the condition of uneven foundation,
too large vertical error will also cause the overturning moment of tower crane to increase, which will reduce the stability of 
tower crane. In addition, tower crane in soft soil, loose soil vertical machine, because of the ground endurance is not enough, 
especially when lifting heavy objects can not bear the burden, will lead to loose soil layer, the body overturned, so in the 
vertical machine, we must choose enough bearing capacity of hard soil, solid soil, and pay attention to reinforcement.