Manufacturing method for steel-structure box beam/box column

Abstract

The invention relates to a steel-structure box beam / box column. A manufacturing method for the steel-structure box beam / box column comprises the following steps that (1) numerical-control blanking of webs and a partition board is conducted according to size requirements, and grooves are machined in the webs and the partition board; (2) spot-welded lining plates are assembled to the back sides of the grooves of the webs and the partition board; (3) a U shape is formed by a cover plate and the two webs on a box-shaped assembly machine; (4) the partition board is placed in the formed U-shaped groove, and three edges of the partition board are welded; and (5) cover plates are installed, and a connecting weld joint between the cover plates is welded. According to the manufacturing method, the difficult problem that the box beam / box column cannot be produced when no special electroslag welding equipment is available is solved, and more importantly, the difficult problem that when a multi-storey house is built, a wall board, with the thickness being smaller than 18 mm, of the beam / column cannot be welded easily through electroslag welding is solved. By the adoption of the manufacturing method, machining procedures are simplified, and the quality and manufacturing efficiency of components are greatly improved; the manufacturing method has extremely high economic value and social value and is easy to apply and popularize.

Description

technical field [0001] The invention relates to a method for manufacturing a steel structure box beam / column, belonging to the technical field of steel structure manufacture. Background technique [0002] As we all know, the existing steel structure box girder / column is composed of two cover plates and two web plates, and the four main welds at the junction of the four plates are designed to be full penetration grooves (CP) in sections according to the strength requirements. and partial penetration groove (PP). Among them, the steel structure box girder / column is equipped with a diaphragm, the main diaphragm and the web adopt full penetration welding, and the ordinary diaphragm and the cover web welded on three sides. [0003] At present, the manufacturing process of steel structure box girders / columns is roughly as follows: Firstly, the column plate is cut with a CNC flame cutting machine, the cover plate, web plate, partition plate and baffle plate are cut, and the web pl...

AI Technical Summary

Problems solved by technology

Since electroslag welding needs to be surrounded by two baffles, partitions and the four side walls of the box-shaped beam / column to form a sleeve shape, and the clearance requirements for the sleeve are very strict, and two thicker baffles are required , also requires low production efficiency and expensive electroslag welding equipment and special nozzles, which is easy to delay the construction period, not only increases the manufacturing cost of the product, but also is difficult, making the production efficiency low

In addition, when the thickness of the wall plate of the beam and column is below 18mm, it is not easy to weld with the current electroslag welding

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