Rectification processing method of steel pipe column or steel pipe concrete column

Abstract

The invention provides a rectification processing method of a steel pipe column or a steel pipe concrete column. The rectification processing method is characterized by including steps: an old column to be rectified is removed through cutting, a specially-made sleeve structure with an adapter plate arranged on the lower portion is inserted onto the old column head remained at the cutting position and close to the bottom of a cross beam at the column top, and the old column head is subjected to point welding to be fixed temporarily; a new baseboard is welded in the range of a foundation bolt on a foot baseboard of the old column in groove welding mode; in position, centralizing and verticality verifying are carried out on the new column used for replacing the old column, and the column bottom is fixed temporarily; the sleeve structure is cut and connected at the point welding position on the old column head, and the sleeve structure falls to the adapter position at the bottom of the sleeve structure under effect of self weight to meet the new column used for replacing the old column; a vertical groove cut on the sleeve structure in advance is subjected to site plug welding; and the bottom of the new column and the new baseboard are subjected to groove welding. The rectification processing method can ensure safety of the rectified structure, is convenient to construct, can ensure that the rectified new steel pipe column and the old framework column are completely identical in appearance, shape and sectional dimension, does not leave any rectification trace, and meets visual requirements of the building design.

Description

technical field [0001] The invention relates to a frame structure type composed of steel pipe columns or steel pipe concrete columns, H-shaped steel beams and profiled steel plate-concrete composite floors. When the verticality deviation of the frame columns exceeds the standard limit value by a large amount, it is corrected. method. Background technique [0002] The frame structure type composed of steel pipe columns (or steel pipe concrete columns), H-shaped steel beams and profiled steel plate concrete composite floors has the characteristics of light weight, large column network, material saving, convenient construction assembly and disassembly, saving construction period and investment, etc. , Widely favored by owners, it is widely used in public buildings such as office buildings, exhibition centers, technology research and development centers, and large industrial laboratories. This structure can be single-layer or multi-layer; it can be single-span or multi-span. T...

AI Technical Summary

Problems solved by technology

[0007] : It is necessary to chisel out the fine stone concrete leveling layer below the base plate of the column foot, which may damage the anchor bolts or affect the anchoring force between the anchor bolts and the concrete foundation; At least half of them should be welded upwards), the quality of welding is difficult to guarantee, and it is precisely here that the beam and column bear the greatest force

[0008] : It is necessary to chisel away the fine stone concrete leveling layer below the base plate of the column base, which may damage the anchor bolts or affect the anchoring force between the anchor bolts and the concrete foundation; , the replacement position of the steel spacer cannot be far away from the top of the column, where the section of the column body is subjected to bending moment, shear force and axial force at the same time, and the fillet weld between the upper and lower surfaces of the spacer and the upper and lower column body is horizontal Circumferential joints are perpendicular to the direction of the axial force of the column, which is unfavorable for force; the centerlines of the upper and lower columns do not coincide and there is a deflection angle, which is also unfavorable for force; the material of the steel pad is different from that of the steel pipe concrete column body, and the local stiffness has a sudden change

The least ideal thing is that the appearance of the steel pad and the steel column are different. Even though it is in the high altitude, it will affect the appearance to some extent. It is difficult for picky architects or owners to accept it.

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