Special fixture for hoisting rectangular section steel column and hoisting method by using same

Abstract

The invention discloses a special fixture for hoisting a rectangular section steel column and a hoisting method by using the same. A matrix space is arranged in the special fixture; the inner net size of the matrix space is slightly greater than the boundary dimension of the section of the rectangular steel column; and the central line of a main side face of a fixture main body is provided with a hoisting hole and a limiting hole through a lug plate. When the rectangular section steel column is hoisted, the fine directivity is kept during the process of hoisting the steel column and when the steel column is in place, and an upper end of the steel column is easily in place; and after the upper end is positioned, a crane gradually loosens hooks, and the special fixture can automatically fall back to the ground. The special fixture for hoisting the rectangular section steel column without welding a lug has the advantages of avoiding the problems of removing steel wire ropes and cutting the lug at high altitude, reducing the risk of work high above the ground, relieving the labor intensity, greatly improving the hoisting efficiency, reducing the crane cost and ensuring the hoisting quality.

Description

technical field [0001] The invention relates to the technical field of installation of rectangular-section steel columns in building construction, in particular to a post-installed special fixture for hoisting rectangular-section steel columns and a hoisting method using the fixture. Background technique [0002] The height of the steel column with rectangular section is relatively high, and the directionality of the four sides is very important during installation. Especially in post-installed steel columns, generally speaking, the top of the steel column must be installed first, followed by the bottom of the steel column. Due to the high height of the top of the steel column, the construction hanging basket is used as a temporary operation platform, and it is difficult to operate when the top is in place. The conventional hoisting method is the binding method. The problem with the binding method is that it is difficult to find the direction of the section of the steel col...

AI Technical Summary

Problems solved by technology

Due to the high height of the top of the steel column, the construction hanging basket is used as a temporary operation platform, and it is difficult to operate when the top is in place

The conventional hoisting method is the binding method. The problem with the binding method is that it is difficult to find the cross-sectional direction of the steel column, so that it is very difficult to position the top of the steel column.

Another method is to weld the lifting lug at the lifting point to avoid the problem that the section direction is difficult to find in the conventional lifting method, but this method has the following problems: to destroy the surface quality of the steel column, welding and cutting off the lifting lug on the surface of the steel column; It is difficult to remove the wire rope at high altitude; it is difficult to cut off the lifting lug at high altitude

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