A prefabricated friction metal double energy dissipation shock-absorbing steel frame beam-column joint

Abstract

The invention relates to an assembled friction metal double energy-dissipating shock-absorbing steel frame beam-column joint, including frame columns and frame beams, beam-column connecting plates, high-hardness friction plates and metal energy-dissipating connecting components. The frame beams are disconnected, The upper flange of the frame beam is fixedly connected with the side flange of the frame column, the web of the frame beam is fixedly connected with the side flange of the frame column through the beam-column connection plate and the high-hardness friction plate, and the beam-column connection plate is stacked on the outside of the high-hardness friction plate , the high-hardness friction plate and the web of the frame beam are trapezoidal, and the lower flange of the frame beam is connected to the side flange of the frame column through a metal energy-dissipating connection component. and mini metal drain bars. The beam-column joint of the present invention adopts a dual energy-dissipating and shock-absorbing structure of friction plates and metal rods, and uses components with both bearing capacity and energy consumption to effectively improve the plastic rotation capacity and energy-dissipating capacity of the joint. The beam-column joint and the main body are connected by full bolts, Prefabricated construction can be realized, and it is convenient for post-earthquake repair.

Description

technical field [0001] The invention relates to the technical field of steel structure beam-column joints, in particular to an assembled friction metal double energy-dissipating shock-absorbing steel frame beam-column joint. Background technique [0002] Beam-column joints refer to the intersections of beams and columns in frame-type building structures. They are an important part of the steel frame structure system and require a large plastic rotation capacity to avoid brittle failure of the structure. In order to improve the plastic rotation capacity of beam-column joints, its energy dissipation and shock absorption design has become one of the key issues in steel structure design. Under the action of strong earthquakes, the overall structure will produce plastic hinges at the beam ends. A plastic hinge is a structural member when a certain section of material enters the plasticity of the entire section when it is stressed but is not destroyed. This point is considered to ...

AI Technical Summary

Problems solved by technology

Today's beam-column joints are mostly fixed by bolts or welding. This connection method makes the beam-column joints lack of plastic rotation capacity and weak energy dissipation capacity, which will cause excessive damage to the main structure during strong earthquakes, and the earthquake It is not easy to repair in the end, and will cause large economic losses

Images