Assembly type single-flange beam column bolt joint connecting device provided with cover plates

Abstract

The invention provides an assembly type single-flange beam column bolt joint connecting device provided with cover plates and belongs to the technical field of structural engineering. The assembly type single-flange beam column bolt joint connecting device comprises an upper column flange plate provided with the cover plate, a square steel pipe column, an outer rib provided with the cover plate, a lower column flange plate provided with the cover plate, a lower square steel pipe column, an H-shaped steel beam, a flitch plate and a clamping plate. The upper square steel pipe column, the corresponding flange plate provided with the cover plate, and the outer rig provided with the cover plate are welded into a whole in a factory. The lower square steel pipe column and the corresponding flange plate provided with the cover plate are welded into a whole in the factory. According to the assembly type single-flange beam column bolt joint connecting device, welding can be completed in the factory, bolts are used for filed assembly, fastening of the bolts is convenient and fast, the construction speed and quality are greatly improved, and the assembly type single-flange beam column bolt joint connecting device adapts to the development of an assembly type steel structure; and joints of the connecting device are semi-rigid joints and are good in ductility and high in bearing capacity. Meanwhile, the clamping plate is made of low-strength steel so that earthquake energy can be fully dissipated, and post-earthquake repairing is facilitated.

Description

technical field [0001] The invention relates to an assembled single-flange beam-column bolt node connection device with a cover plate, which belongs to the technical field of structural engineering. Background technique [0002] At present, the systematic research on high-rise steel structure residences at home and abroad is in its infancy, and the innovation of industrially assembled high-rise steel structure systems is imperative. The prefabricated 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...

AI Technical Summary

Problems solved by technology

[0003] The beam-column joint is the most important joint in the fabricated steel structure system, which directly affects the construction speed and the degree of assembly of the structure. Therefore, the beam-column joints should be connected with high-strength bolts that are easy to operate as much as possible, and the bolts should be arranged as far as possible. It is easy for workers to fasten on site. The beam-column joints used in the existing engineering examples have the following disadvantages: In the traditional beam-column fully welded joints, the upper and lower flanges of the beam and the web and the column are welded on site. Although this connection method is a rigid connection, However, the ductility of the joints is poor, brittle failure is prone to occur in earthquakes, and on-site welding is required, which greatly affects the construction speed and quality. It is not used in multi-story fabricated steel structures. At the same time, due to the large welding area, it is easy to generate large residual stress , affecting the mechanical performance of the node

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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