The fixed column jib crane is used with electric hoist. This kind of jib crane has such features as unique structure, safety, reliable, high efficient, save energy, save time, save effort and flexible. It can relize 360° rotation and operate freely in three-dimensional space. Therefore, the fixed column jib crane is widely used in construction, transportation and other industries. As to the extend application, there are more and more jib crane accidents in our daily life, and do you know how to avoid jib crane accident?
If we want to prevent the jib crane from accidents, we need to know which reasons may cause the jib crane accident firstly. According to the jib crane manufacturing and jib crane installation experience of Nucleon crane's engineer, we take a conclusion that there are mostly there reasons as the following:
1. Some of the construction sites were rushed to install the fixed column jib crane under the condition of insufficient concrete strenth so that they can snatch the construction period. This behavior may cause the jib crane to bear more than the limit of the groud stress, which results in the unfurtunate accident of collapse and overturning.
2. In recent years, there are many cities that pumps underground water excessively and results in goundwater hoppers, even causes uneven settlements, which makes a difference on the operation and construction of cantilever cranes.
3. Some construction units do the excavation work near the jib crane foundation, which may cause the landslides and even displacement. These all can result in the jib crane accidents.
From what the nucleon crane's engineer has said above all, we should know if we want to avoid the jib crane accident, the construction units must ensure that the endurance meet the design requirement when do the jib crane foundation. In addition, the strength of reinforced concrete should reach 80% of the design value at least.