Manufacturing method of steel skeleton structure

Abstract

The invention provides a steel-framed structure manufacturing method. In the past, at a building steel-framed column and girder joint part, square steel pipe columns are cut off according to building layers and assembled in the mode that the square steel pipe columns penetrate through partition plates, the method is complicated, more work hours for manufacturing is consumed, degradation and deformation of the peripheries of the partition plates are caused, even if the columns are not cut off according to the layers, electro-slag welding has to be performed between four-side box columns and the partition plates so that a large welding amount is generated, and if welding is performed on the partition plates and the columns at the ultra-high input heat energy of 500-1000KJ / cm, cracking or degradation such as lamellar tearing of the columns is prone to occurring. In the steel-framed structure manufacturing method, for four-side box-shaped steel pipe columns with the thickness being above 25mm and the diameter being above 400mm, the steel pipe columns are not cut off according to layers, welding is performed on a part of through holes formed in the box-shaped steel pipe columns and the ends of inner partition plates of a protrusion with outward grooves in the whole periphery of the protrusion in a small welding amount and low input heat energy mode, H-shaped steel girders are connected through a multilayer stacked welding portion comprising through hole welding portions in a welding mode, and therefore the problems are solved.

Description

technical field [0001] The present invention relates to providing a protrusion on a part of the peripheral end of an inner partition in a thick-walled, large-diameter column-beam junction of a building steel frame structure, providing a bevel on the entire circumference of the protrusion, and having The protruding inner partition plate with the bevel and the beam are directly connected by welding through the column through-hole. Background technique [0002] In the prior art, in the column-beam joint of the building steel frame structure, the joint such as figure 1 As shown, a dice body is formed by welding 6 between a partition plate 1 formed of a thin steel plate and a shorter square steel pipe 2, and the dice body is welded to the H-shaped steel beam flange 4 7, and then the dice body is connected to the H-shaped steel beam flange 4. The square steel pipe columns 5 are often formed by welding and joining. In this prior art, such as figure 2 As shown, the welding 6 of ...

AI Technical Summary

Problems solved by technology

Therefore, there are the following problems: the cost of parts manufacturing is high, and the partition plate protruding from the square steel pipe column after the dice body is manufactured is easy to bend, so the so-called umbrella bending phenomenon occurs, and the gap between the partition plate 1 and the beam flange 4 is easy to be bent. misread

[0025] (1) In a simple longitudinal gap, the welding at the end of the gap has edges and corners, and defects are prone to occur during welding

[0026] (2) The number of longitudinal slits is large, and many small screw holes are required, so the cost of opening holes is spent

[0027] (3) Metal fittings with complex shapes are split type, and 8 pieces are required for 1 column-beam junction

[0029] (5) The main body of the metal part is a slanted material at 45° relative to the beam axis direction, and it is difficult to obtain sufficient bearing capacity for the load in the beam axis direction

[0030] (6) There are metal parts, small screws, many openings, etc., the number of parts is large, the shape is complicated, it is difficult to assemble, and the cost is higher than that of the partition method

In this method, although the welding of the square steel pipe column and the inner partition is partial, the cross-sectional area of ​​the groove becomes the object to be welded, and the wall thickness (plate thickness) of the column and the wall thickness (plate thickness) of the beam flange become larger as they increase. There is a problem that the amount of welding increases dramatically, and there is a problem that welding efficiency decreases

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