Beam-column joint connection device of fabricated reinforced concrete frame

Abstract

The invention relates to a beam-column joint connection device of a prefabricated reinforced concrete frame, which includes a prefabricated reinforced concrete column and a prefabricated reinforced concrete beam connected by multiple prestressed tendons, and connecting metal components arranged on both sides of the joint between the column and the beam . One end of the connecting metal member is fixedly connected to the side of the prefabricated reinforced concrete column, and the other end is fixedly connected to the side of the prefabricated reinforced concrete beam; both sides of one end of the prefabricated reinforced concrete beam are provided with concrete beam side grooves; the contact between the connecting metal member and the prefabricated reinforced concrete beam Protrusions are arranged on the surface, and the protrusions are embedded in the side grooves of the concrete beams; high damping material plates are filled between the protrusions and the walls of the side grooves of the concrete beams. This kind of connection device can ensure that when the beam-column joint is prone to corner misalignment, in addition to relying on the prestressed tendons to improve the self-resetting ability of the joint, it can also use the frictional energy dissipation and cyclic compression buffer of the high-damping material plate performance, improving the energy dissipation and bending resistance of the node.

Description

Technical field[0001]The present invention is the field of civil engineering technology. Specifically, it is a beam column node connecting device for assembling reinforced concrete frame.Background technique[0002]Among modern buildings, assembled buildings have been vigorously developed in my country because of the advantages of high building speed and low production costs. The frame beam between the assembled building is no longer connected by current pouring concrete, and combined with additional connecting means. Common connection modes are to use non-bonded pre-deducting to assemble preformed reinforced concrete frame beams and columns.[0003]Although there is no bonded prestressed thus to increase the self-reintegration performance after the reinforced concrete frame beam node, their energy consumption is weak, and the beam end is easily concentrated, so that some concrete of the beam is easily Destroy, resulting in a decrease in the bending performance of the beam column node.[...

AI Technical Summary

Problems solved by technology

[0003] Although unbonded prestressed tendons can improve the self-resetting performance of reinforced concrete frame beam-column joints after an earthquake, their energy dissipation performance is weak, and they are prone to large stress concentrations at the beam ends, making it easy for some concrete at the beam ends to Destruction, resulting in reduced flexural performance of beam-column joints

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