Fully-prefabricated assembled concrete column-concrete beam buckling-restrained energy-consuming joint

Abstract

The invention provides a fully-prefabricated assembled concrete column-concrete beam buckling-restrained energy-consuming joint which comprises two buckling-restrained flange metal plate energy-consuming dampers, two high-strength web connecting plates, a first pre-buried steel beam and a second pre-buried steel beam. One end of the first pre-buried steel beam is buried in a concrete column while the other end of the same outwards extends out of a column face, one end of the second pre-buried steel beam is buried in a concrete beam while the other end of the same outwards extends out of a beam end face, upper and lower flanges of the first pre-buried steel beam and the second pre-buried steel beam are connected through the buckling-restrained flange metal plate energy-consuming dampers, and two sides of the middles of the first pre-buried steel beam and the second pre-buried steel beam are connected through the high-strength web connecting plates. The fully-prefabricated assembled concrete column-concrete beam buckling-restrained energy-consuming joint has the advantages that outward moving of a plastic hinge from the column beam can be realized through the buckling-restrained energy-consuming joint, so that damage to a core area of the buckling-restrained energy-consuming joint is reduced, and anti-seismic performance requirements on 'strong column and weak beam' and 'strong shearing and weak bending' are met.

Description

technical field [0001] The invention relates to a concrete beam-column energy-dissipating node, in particular to a fully prefabricated concrete column-concrete beam anti-buckling energy-dissipating node. Background technique [0002] At present, the commonly used prefabricated frame structure has the problem of secondary pouring (wet connection) at the connection part, and the reinforcement is complicated, the quality is not easy to guarantee, the construction period is long, and a large number of supports are still required during construction. The characteristics of fast construction and industrialized production of the type structure have had adverse effects. More importantly, for the prefabricated concrete frame structure, the nodes and their connections are the most important link in the prefabricated concrete frame structure, and also the weakest link in the entire structural system. According to previous surveys of earthquake damage (in the Northridge Earthquake, Kob...

AI Technical Summary

Problems solved by technology

[0003] In the traditional prefabricated frame structure, the structure mainly dissipates energy through its own plastic deformation, but the damage and destruction of the structure under the action of strong earthquakes have brought great difficulties to repair and subsequent use. Therefore, Traditional prefabricated frame structures are increasingly unable to meet people's requirements for structural seismic performance.

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