A self-centering system end connection device

Abstract

The invention discloses a self-centering system end connecting device. The self-centering system end connecting device comprises two connecting plates, an inner friction plate, outer friction plates and an interlayer rubber end plate, wherein the unrestrained ends of the two connecting plates are connected with the inner friction plate; the outer friction plates are connected to the two sides of the inner friction plate; and the interlayer rubber end plate is located between the two connecting plates. The interlayer rubber end plate comprises a rubber pad, an end plate, an inner cushion plate and two outer cushion plates, wherein the end plate is arranged on the side, facing the inner friction plate, of the rubber pad, and the inner cushion plate and the outer cushion plates are arranged on the other side of the rubber pad. Slots are formed in the inner friction plate in the longitudinal direction of the connecting plates, and the inner friction plate and the outer friction plates can slide relatively along the slots. According to the connection mode of the self-centering system end connecting device and a self-centering system, the restrained ends of the two connecting plates are welded to an outer sleeve of the self-centering system, the outer cushion plates are in contact with the outer sleeve of the self-centering system, the inner cushion plate is in contact with an inner sleeve of the self-centering system, and a pre-tensioning rod arranged in the inner sleeve is anchored on the end plate after prestress is applied.

Description

technical field [0001] The invention belongs to the field of civil engineering and relates to a self-centering system end connection device for reducing earthquake disasters of engineering structures. Background technique [0002] Earthquakes bring extremely serious disasters to human beings. The traditional seismic design adopts the ductility design method, that is, under the action of an earthquake, through the early yield and failure of some structural components (such as energy-dissipating supports), but the overall function will not be lost, relying on the plastic deformation of components to dissipate most Earthquake energy, so as to achieve the purpose of ensuring the safety of the main structure. However, due to the emergence of plastic deformation, the structure is prone to large residual deformation after the earthquake, which greatly increases the difficulty and cost of structure repair. [0003] To control the residual deformation of the structure, a self-cente...

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Problems solved by technology

[0004] Technical problem: The present invention aims at the defect that the existing self-centering system has a large initial rigidity, is significantly affected by the processing error of the casing length, and is prone to breakage of the pre-tie rod when large deformation occurs, and provides a self-centering system that can reduce the The initial rigidity can reduce the influence of casing length processing error, and it can also effectively avoid the self-centering system end connection device from breaking the pre-tie rod

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