Beam-column seismic joints and their connection methods

Abstract

The invention discloses a beam-column anti-seismic connecting joint and a connecting method thereof, and the problem of brittle fracture is solved. The beam-column anti-seismic connecting joint is used for connecting of a steel column and an I-shaped steel beam, and a first space and a second space are arranged on connecting parts of the two ends of the steel beam; a laminated component is arranged in the first space, and a grouting groove is formed in the second space; a transition connecting piece is fixed on the steel column, and an inserting groove of the transition connecting piece is a U-shaped groove structure with upward opening and is composed of a bottom plate and side plates on the two sides; a connecting part is connected with the inserting groove in an inserted mode, and high strength long bolts are fixed on the two side walls of the inserting groove; and high strength long bolts pass through a strip hole I in a steel sheet, a strip hole II in a beam web and a pin hole in a friction slice. By means of grouting, rigid connecting is formed between the steel beam and the transition connecting piece. Under the action of an strong earthquake, concrete blocks are damaged and crushed, then flexible connecting is formed between the steel beam and the transition connecting piece through the laminated component and the concrete blocks.

Description

technical field [0001] The invention relates to the technical field of steel structure node fabrication. Background technique [0002] In the field of prefabricated steel structure technology, steel structure nodes need to be connected by prefabricated connection. The traditional connection method refers to Figure 12 The structure shown in , that is, L-shaped connectors are used for excessive connection between steel beams and steel columns, where L-shaped connectors and steel columns are connected by high-strength bolts, and L-shaped connectors and steel beams are connected by high-strength bolts Strength bolts for connection. The main problem with this structure is that the seismic performance is not good, and when a strong earthquake occurs, brittle fractures are likely to occur at the connecting parts. [0003] In order to solve the seismic problem of the connection joints of steel beams and steel columns, experts and scholars at home and abroad have carried out a larg...

AI Technical Summary

Problems solved by technology

In practical application, the friction force generated by the steel plates in the overlapping area is limited. In particular, during the vibration process, the loosening of the bolts is inevitable. After the bolts are loosened, the friction effect will be reduced sharply, so this kind of The structure is also uncontrollable, and relative to the kinetic energy generated by the earthquake, the friction effect is poor and the shock absorption effect is poor

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