Design method for horizontal-pushing-type dovetail joint assembly-type frame nodes of square steel tube column and H-shaped beam

Abstract

The invention relates to a design method for horizontal-pushing-type dovetail joint assembly-type frame nodes of a square steel tube column and an H-shaped beam. The method comprises the steps that the square steel tube column and the H-shaped beam are processed and prefabricated, conveyed to a site, hoisted on site, and installed through bolts; a column-in clapboard, a web connection plate, a stiffening plate and a connection beam mortise component are prefabricated in a square steel tube column node area and embedded in the square steel tube column, the stress of the reinforcement square steel tube column is stable, and an auxiliary steel beam bears the bending moment which is transmitted by a connection beam mortise; the stiffening plate is a steel plate in a shape similar to the triangle, the upper and lower portions of the stiffening plate are connected with a fixing column web and the connection beam mortise, and the thickness of the stiffening plate is slightly higher than thatof the thin edge of the connection beam mortise; frame beams are connected to upper and lower flanges of the connection beam mortise in the thickness direction, the inward turning portion of the mortise is thickened twice, and the total length of the mortise is half of the height of the frame beams; the upper and lower flanges of the frame beams are outward turned and thickened twice, and dovetailjoints are formed; through prefabricated components, based on the design of mortise and tenon construction, the H-shaped beam is hoisted to a corresponding position and horizontally inserted in a column end mortise, a crane is removed, the H-shaped beam is kept stable under the effect of mortise and tenon components, and screwing-up operation is completed.

Description

technical field [0001] The invention relates to the connection and assembly of beam-column joints in a prefabricated assembled steel structure, in particular to a design method for joints of a square steel pipe column and an I-beam flat-push dovetail-tenon assembled frame based on a dovetail form. Background technique [0002] Prefabricated buildings refer to buildings assembled on site with prefabricated components. The advantage of this kind of building is that the construction speed is fast, it is less restricted by climatic conditions, it saves labor and can improve the construction quality. my country is vigorously developing prefabricated buildings and promoting the adjustment and upgrading of industrial structure. However, at present, the on-site splicing joints of fabricated steel structures in my country are still welded after on-site hoisting or multi-high-strength bolt connections. There are problems such as low on-site assembly efficiency, difficult construction...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of difficult beam-column joint connection technology and difficult replacement or reuse of components in the on-site installation of steel structures, provide simple and convenient installation and construction, good mechanical performance, reliability and safety, and effectively improve on-site construction. The design method of square steel pipe column and I-beam flat-push dovetail tenon assembly frame joint design method with high efficiency and joint safety at the same time

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