Design method of fabricated frame joint of H-shaped steel column and I-shaped beam horizontal pushing type dovetail tenon

Abstract

The invention discloses a design method of a fabricated frame joint of an H-shaped steel column and I-shaped beam horizontal pushing type dovetail tenon. H-shaped steel columns and I-shaped beams areprocessed and prefabricated, and the columns and the beams are transported to a construction site to be hoisted and are mounted on the site by using bolts; column-in separating plates, web connectingplates, stiffened plates and connecting beam mortise opening components are prefabricated in an H-shaped steel column joint region and are embedded in the H-shaped steel columns, and auxiliary steel columns bear bending moment force transmitted by connecting beam mortise openings; the web connecting plates are used for bearing shearing force of the joint; the stiffened plates are steel plates similar to triangles and connected with fixing column flange plates and the connecting beam mortise openings up and down; upper and lower flange thicknesses of the connecting beam mortise openings are connected with frame beams, the thickness of the inward flanging places of the connecting beam mortise openings is doubled, the width of the connecting beam mortise openings is equal to the width of theframe beams, and the total length of the connecting beam mortise openings is half of the height of the frame beams; upper and lower flanges of the ends of the frame beams adopt outward flanging, the thickness of the outward flanging places is doubled, and the dovetail tenon is formed; prefabricated components hoist the I-shaped beams to the corresponding positions based on the design of a tenon-mortise structure, the I-shaped beams are transversely inserted into column end mortise openings, a hoisting machine is removed, the I-shaped beams are kept stable, and screwing operation of bolts is finished.

Description

Technical field [0001] The invention relates to the technical field of connection and assembly of beam-column nodes in a prefabricated steel structure, in particular to a design method for an H-shaped steel column and an I-beam flat push type dovetail assembly frame node. Background technique [0002] Prefabricated building refers to a building assembled on site with prefabricated components. The advantages of this kind of building are fast construction speed, less restricted by climatic conditions, saving labor and improving construction quality. my country is vigorously developing prefabricated buildings to promote the adjustment and upgrading of industrial structure. However, at present, the splicing joints of prefabricated steel structures in my country are still welded or connected by high-strength bolts after on-site hoisting. There are problems such as low on-site assembly efficiency, construction difficulties, and difficulty in dismantling, replacing or reusing component...

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, reliable safety, and effectively improve on-site Design method of H-shaped steel column and I-beam flat-push dovetail tenon assembly frame joint design method while ensuring construction efficiency and joint safety

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