Technology for hoisting strip-shaped inclined steel structures in place through single crane

Abstract

A technique for hoisting a strip-shaped inclined steel structure into place by a single crane, the following steps are adopted: 1. Calculate the weight and center of gravity position of the inclined tie bars; 3. Connect the upper ends of the slings with the hooks, and set sliding tail ropes at both ends of the inclined ties; 4. Set safety ropes at both ends of the chain hoist; 5. Slowly lift the crane and place The whole inclined ties slowly leave the ground; 6. After the slanted ties are lifted half a meter from the ground, they should stay for a few minutes; 7. Put the slanted ties in place to the installation position, and assemble the slanted ties accurately; 8; The hoisting is completed by welding and fixing the inclined tie bars. The present invention can complete the precise hoisting and positioning of the strip-shaped inclined steel structure by using a single crane, which solves the problem of using two cranes to adjust the inclination angle of the steel structure with a lighter tonnage; not only greatly reduces the construction cost, Moreover, the efficiency and safety of construction are also improved.

Description

technical field [0001] The invention relates to a hoisting process, in particular to a process for hoisting a strip-shaped inclined steel structure into place by a single crane, and belongs to the field of steel structure construction. Background technique [0002] At present, in the marine steel structure construction and installation industry, the most common method for the installation of strip-shaped inclined steel structures is to use two cranes for hoisting operations, but this method requires high costs and requires sufficient work Space, for the strip-shaped inclined steel structure with small tonnage, the applicability is extremely poor. In addition, a method is to use a single crane for hoisting operations, which is to connect a lot of shackles in series on the wire rope to adjust the inclination angle of the steel structure. However, the disadvantage of this method is that the inclination angle of the strip-shaped inclined steel structure is not accurate enough a...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to overcome the above-mentioned shortcomings existing in the prior art, and to provide a process for hoisting a strip-shaped inclined steel structure into place with a single crane, which can complete the precise lifting of the strip-shaped inclined steel structure by using a single crane. Hoisting in place solves the problem of using two cranes to adjust the inclination angle of the steel structure with a lighter tonnage; it not only greatly reduces the construction cost, but also improves the efficiency and safety of the construction

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