Sleeve-type bolt connecting joint for box-shaped component splicing

Abstract

The invention provides a sleeve-type bolt connecting joint for box-shaped component splicing. A box-shaped component is provided with a plurality of first through holes, and a sleeve is welded into each through hole. The sleeves are located in an inner cavity of the box-shaped component and provided with threaded holes, and the threaded holes are in butt joint with hole openings of the first through holes in the box-shaped component. A connecting component is in a flat plate shape, and a plurality of second through holes are formed in the plate surface of the connecting component. During assembly, the second through holes in the connecting component are in butt joint with the first through holes in the box-shaped component. Bolts the same as the second through holes in number are configured, and the bolts are sequentially screwed into the second through holes and the sleeves corresponding to the first through holes, so that the box-shaped component and the connecting component are connected. The sleeves with inner threads are reliably connected with the bolts so that the splicing joint can well meet the characteristics of a prefabricated assembly-type steel structure, joint connecting is reliable, slippage can further be reduced, on-site welding is not needed, and on-site construction is convenient.

Description

technical field [0001] The invention relates to the field of prefabricated buildings. Background technique [0002] Steel structure buildings have been widely promoted in China in recent years. Compared with concrete structures, steel structure buildings have the advantages of less total steel consumption, industrialized component manufacturing, good earthquake resistance, fast installation speed, and low cost. In industrial and civil buildings. Among them, the steel columns of multi-story steel structure buildings mostly adopt H-shaped steel, round steel pipes, cross-shaped steel, steel structure box columns, etc., because the steel structure box columns have good working performance in two mutually perpendicular directions of force, It can better meet the strength of steel columns and the stability of the overall structure, so designers often design steel columns in multi-high-rise steel structure buildings as steel structure box columns. [0003] The welding of steel st...

AI Technical Summary

Problems solved by technology

[0004] 1) The four wall plates of the steel structure box-shaped column are relatively thick, and the weld bead is relatively deep during welding. How to weld and fill the weld seam is one of the difficulties;

[0005] 2) Under the action of welding heat cycle, the quenching property of the base metal in the welding area increases, the residual stress increases, and cracks are easy to occur

[0006] 3) The welding of the partition plate in the box-shaped column cavity of the steel structure cannot be welded by ordinary welding methods, and electroslag welding equipment is needed to solve the problem, which is difficult to weld;

[0008] 5) The box-shaped column of steel structure is heavy, the steel plate is thick, and the rigidity is high, so the degree of restraint is large, and it is difficult to ensure uniform penetration of the weld seam during welding

[0009] In summary, the existing steel structure box column joints are difficult to meet the requirements of prefabricated buildings

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