Welding method of steel structure tetrahedron huge column

Abstract

The invention discloses a welding method of a steel structure tetrahedron huge column. The method is used for assembling and welding front, back, left and right parts forming the tetrahedron huge column and comprises the following welding steps that (1) spot welding between main plates of the front and back parts and corresponding longitudinal and transverse rib plates is performed; (2) main plates of the left part and the right part are assembled with the main plates of the front part and the back part in a spot welding mode respectively, the assembling and welding angle between the main plate of the front part and the main plate of the right part and the assembling and welding angle between the main plate of the back part and the main plate of the left part are both 90 degrees, the assembling and welding angle between the main plate of the front part and the main plate of the left part is smaller than 90 degrees, and the assembling and welding angle between the main plate of the backpart and the main plate of the right part is greater than 90 degrees; (3) the corresponding longitudinal and transverse rib plates is spot-welded on the main plates of the left part and the right part; (4) the spot-welded longitudinal and transverse rib plates are welded on the main plates of the corresponding parts; (5) the alignment rib plates between the main plates of the adjacent parts are welded into a whole; and (6) an inner side main welding seam and an outer side main welding seam between the main plates of the adjacent parts are welded.

Description

technical field [0001] The invention relates to building construction technology, in particular to a method for welding a steel structure tetrahedron giant column. Background technique [0002] The outer frame of a certain construction project (heavy steel structure), the length of the four frame panels is 3250mm x 2050mm x 2353mm x 3038mm, the material is Q420-Z25, the thickness of the plate is 45mm ~ 60mm, and the four frame panels are equipped with connecting components. One-piece grid-like rib wall. Due to its large structural size and thick plates, the tetrahedral giant column is difficult to splice and weld, and the production is complicated. The column is deformed. [0003] In the prior art, the solution to the deformation of heavy steel components is to correct and repair them, resulting in a waste of labor costs and an increase in production costs. Especially for heavy steel components made of Q420-Z25, due to improper welding methods, it is easy to cause welds S...

AI Technical Summary

Problems solved by technology

Due to its large structural size and thick plates, the tetrahedral giant column is difficult to splice and weld, and the production is complicated. Deformation of the column

[0003] In the prior art, the solution to the deformation of heavy steel components is to correct and repair them, resulting in a waste of labor costs and an increase in production costs. Especially for heavy steel components made of Q420-Z25, due to improper welding methods, it is easy to cause welds Serious quality problems such as cracks lead to a large number of repairs

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