How to install cranes in steel structure workshops

Cranes are hoisting machinery used for lifting various heavy objects installed in steel structure workshops, which can greatly reduce the labor intensity of workers and are indispensable equipment in industrial production.

Type of crane that can be installed in steel structure plant

There are many types of cranes to be installed in steel structure workshops, such as bridge cranes , gantry cranes, semi-gantry cranes , cantilever cranes , etc. The user can choose the appropriate type according to the site conditions.

The two ends of the bridge crane are located on tall concrete columns or metal supports, which are shaped like bridges. The bridge frame of the bridge crane runs longitudinally along the tracks laid on both sides of the elevated frame, which can make full use of the space under the bridge frame to lift materials without being hindered by ground equipment. It is the most widely used and the largest number of cranes.

Gantry crane is a variant of bridge crane, also called gantry crane. The metal structure of the gantry crane is like a portal frame. Two supporting feet are installed under the main beam, which can walk directly on the track on the ground. Both ends of the main beam can have overhanging cantilever beams. If the plant cannot be installed with a bridge crane, consider installing a gantry crane.

Semi-gantry crane is an intermediate type of bridge crane and gantry crane. One end runs on the crane beam of the factory building and the other runs on the ground track, which can use the site more efficiently.

Cantilever cranes are hoisting machinery for small-scale operations. They are suitable for lifting heavy objects in fixed working areas. The lifting tonnage is generally small.

Common problems of installing crane in steel structure workshop

Allowable deviation of crane beam installation in steel structure workshop (mm):

• Verticality of the beam in the middle of the span: h/500;
• Lateral bending vector height: l/1500 and should not be greater than 10.0;
• Vertical arch vector height: 10.0

Center displacement of supports at both ends:

1.  When installed on a steel column, the offset to the center of the corbel: 5.0;
2.  When installed on a concrete column, the offset of the positioning axis: 5.0;

Offset between the center of the crane beam support stiffener plate and the column pressure stiffener plate: t/2;

Bridge cranes are more commonly used in steel structure workshops. Users can also choose other types of cranes according to their own conditions, or use a combination of multiple types of cranes. Improve the production efficiency of enterprises.

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