Beam-column connection nodes and connection methods of steel structures

Abstract

The invention discloses a steel structure beam column connecting joint and a connecting method thereof, and aims at solving the problem that existing connecting joints are prone to brittle fracture. The steel structure beam column connecting joint and the connecting method thereof are used for steel column and I-shaped steel beam connection. Connecting parts at the two ends of the steel beam are afirst space and a second space. A transition connecting piece is composed of a steel plate and an inserting and connecting groove and is fixed to a steel column, and after inserting and connecting ofthe inserting and connecting groove and the steel beam, a joint structure is formed. A platy spring assembly is arranged in the inserting and connecting groove between the connecting parts and a bottom plate. A steel cable is arranged between the steel beam and the transition connecting piece. The part between the second space and the side wall of the inserting and connecting groove is grouted. Under the action of the violent earthquake, concrete blocks are crushed in a damaged manner, then the steel beam and the transition connecting piece are flexibly connected, and the relative movement capability is achieved; under the action of the platy spring assembly and the action of the earthquake, high-frequency reciprocating vibration is conducted, and most of earthquake energy can be consumed; and connecting point brittle fracture can be effectively avoided, and the earthquake resisting function is achieved.

Description

technical field [0001] The invention relates to the technical field of steel structures. 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 9 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 large number of exper...

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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