Beam-column joint connecting device for multi-story/high-rise assembly type steel structure system

Abstract

The invention relates to a beam-column joint connecting device for a multi-story / high-rise assembly type steel structure system, and belongs to the technical field of structural engineering. The device comprises beam end box type connecting pieces, vertical connecting channel steel, upper column flanges, lower column flanges, truss beam end upper and lower chord members, a joint short column lower-end flange, a joint short column and a join short column upper-end flange, wherein the beam end box type connecting pieces, the joint short column, the joint short column upper-end flange and the joint short column lower-end flange can be welded into a whole in a factory; two pieces of vertical connecting channel steel and the truss beam end upper and lower chord members are welded into a whole in the factory; and the two pieces of vertical connecting channel steel are connected with the beam end box type connecting pieces through bolts. Welded parts of the joint connecting device can be finished in the factory, and are assembled in situ by the bolts, the fastening work of the bolts is convenient and quick, the construction speed is greatly increased, the construction quality is greatly improved, and the device is adapted to the development of an assembly type steel structure; and in addition, a joint is a rigid joint, and is high in ductility and bearing capacity.

Description

technical field [0001] The invention relates to a beam-column joint connecting device of a multi-high-rise assembled steel structure system, belonging to the technical field of structural engineering. Background technique [0002] The multi-high-rise fabricated steel structure system refers to the building produced by manufacturing housing units or components according to uniform and standard building part specifications, and then transporting them to the construction site for assembly in place. It is characterized by light building weight, energy saving and environmental protection, fast construction speed, and high degree of industrialization. It can solve many problems such as the low level of construction industrialization in my country, low labor productivity in house construction, and low quality of traditional house products, and adapt to the development of my country's construction industry. [0003] The beam-column connection is the most important node in the multi-...

AI Technical Summary

Problems solved by technology

[0004] In the traditional fully welded beam-column joint, the upper and lower flanges of the beam and the web and the column are welded on site. Although this connection is a rigid connection, the ductility of the joint is poor, and brittle failure is prone to occur in earthquakes, and on-site welding is required, which greatly affects the construction. Speed ​​and quality are not suitable for multi-story fabricated steel structures. At the same time, due to the large area of ​​the weld, it is easy to generate large residual stress, which affects the mechanical performance of the joints

[0005] In traditional beam-column joints connected by high-strength bolts, the beam end seal plate and box-shaped columns are fastened and connected by high-strength bolts. When fastening, workers need to reach into the box-shaped columns. It is inconvenient to come, and at the same time, the screw holes will weaken the short column of the node, affecting its mechanical performance

[0006] In the traditional bolted and welded joint connection, the upper and lower flanges of the beam end are welded to the column on site, and the web at the beam end is bolted to the column through a shear plate. This connection method requires on-site welding, which greatly affects the construction speed and quality, and the construction The program is complex and it is not easy to achieve rigid connection

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