Rigid connection joint of steel-structure rectangular rod piece and processing and installation method thereof

Abstract

The invention discloses a rigid connection joint of a steel-structure rectangular rod piece and a processing and installation method thereof. A bolt hole and a plug welding hole are drilled in a flange and web of each rectangular-section steel rod piece, the inner sides of the flange and web of each rectangular-section steel rod piece are connected with a flange bolt hole built-in plate and a webbolt hole built-in plate respectively, the bolt hole in each rectangular-section steel rod piece and the bolt holes in the corresponding flange bolt hole built-in plate and web bolt hole built-in plate are concentric, the plug welding holes in the rectangular-section steel rod pieces are connected with the bolt hole built-in plates through plug welds, the rectangular-section steel rod pieces are in butt joint, bolts runs through flange connecting plates or web connecting plates, the bolt holes in the rectangular-section steel rod pieces and the rectangular-section steel rod pieces, and then meshed with threads on the flange bolt hole built-in plates and web bolt hole built-in plates. The invention further relates to the processing and installation of the rigid connection joint. The rigid connection joint of the steel-structure rectangular rod piece and the processing and installation method thereof have the advantages that the structure is simple, the use is convenient, the rigid connection of the rectangular-section steel rod pieces is achieved, assembly line processing in a plant is achieved, on-the-spot welding in a construction site is not needed, the connection is achieved completely through bolts, the method is efficient and safe, and the quality is ensured.

Description

technical field [0001] The invention belongs to the technical field of steel structures with rigid joints, and more specifically relates to a rigid joint connected by bolts with rectangular cross-section steel members, and also relates to a processing and installation method for rigidly connected joints with rectangular steel members. Background technique [0002] Steel structure is a structure composed of steel plates, section steel, etc., and is one of the main types of building structures. It has the advantages of high strength, high overall rigidity, light weight and good seismic performance. The connection points of the steel structure have a great influence on the mechanical properties of the structure, the difficulty of processing and installation, and the project cost, especially the rigid connection nodes of rectangular steel members. [0003] The existing rigid connection nodes of rectangular steel members have the following three methods: (1) all-welded connectio...

AI Technical Summary

Problems solved by technology

For method (1), the welding volume on the construction site is large, and there may be overhead welding, resulting in a large amount of high-altitude operations, difficult welding, high safety risks, and difficult quality assurance

For the (2) method, the operation hole must be reserved first. It is inconvenient to operate the steel member with a small rectangular cross-section, and after the bolts are installed on the construction site, the reserved operation hole must be welded and sealed with a steel plate, increasing Reduced on-site welding workload

For the (3) method, the end plate must be an overhanging end plate, that is, the size of the end plate must be larger than the rectangular section of the steel member before the bolt can be installed, similar to the flange connection, this type of end plate will affect the subsequent If the installation of the floor or wall panels requires extremely high precision for the construction of the steel structure beam-column joints, otherwise there will be gaps between the end panels, which is inconsistent with the theoretical assumptions and there is a problem with force transmission

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