Friction energy dissipation combination node for assembly type self-resetting pre-stressed concrete framework

Abstract

The invention discloses a friction energy dissipation combination node for an assembly type self-resetting pre-stressed concrete framework. The friction energy dissipation combination node comprises aprefabricated reinforced concrete column, a prefabricated reinforced concrete beam, a column end pre-embedded steel plate, a friction plate, an unbonded pre-stress steel strand, a beam end pre-embedded steel sleeve, and a pre-stress steel strand porous channel; an end plate anchor bar, an anti-shearing support and a friction plate fixing support are welded on the column end pre-embedded steel plate; an anti-shearing stud is welded on the inner wall of the beam end pre-embedded steel sleeve, the friction plate is arranged on a profile steel web, a friction plate fixing screw is welded on the friction plate and penetrates through the friction plate fixing support in a reserved screw opening, two nuts arranged inside and outside the friction plate fixing support fixe and regulate the position of the friction plate, the seismic energy is dissipated by rubbing the profile steel web of the beam end pre-embedded steel sleeve, the friction plate can be changed, and the prefabricated assemblytype concrete framework structure is excellent in anti-seismic property and self-resetting capability in the high-intensity earthquake.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to an assembled self-resetting prestressed concrete frame frictional energy-dissipating combined node, which can dissipate seismic energy during an earthquake and can be used continuously after an earthquake without repair or with a little repair. Background technique [0002] my country's prefabricated structure mainly adopts the prefabricated integral type, that is, the theoretical model of "equivalent to cast-in-place". The seismic performance of the assembled monolithic structure is close to that of the cast-in-place structure, but the joints still need to be cast-in-situ, and the degree of assembly is not high. The post-tensioned prestressed prefabricated structure formed by splicing prefabricated components through prestressed steel strands not only facilitates construction, but also can withstand the bending moment at the beam end during the use s...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the shortcoming of poor energy dissipation capacity of the traditional prefabricated self-resetting prestressed structure, the present invention provides an assembled self-resetting prestressed concrete frame friction energy-dissipating combined node, which is convenient for construction and has a significant energy dissipation effect, making the prefabricated structure Excellent seismic performance and self-resetting ability under high-intensity earthquakes

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