A Self-Centering Frictional Energy Dissipating Support of Large Deformation Pulley Block

Abstract

The invention discloses a large-deformation pulley group self-centering frictional energy-dissipating support, which comprises a rectangular middle sleeve, a rectangular inner sleeve located inside the rectangular middle sleeve, a rectangular outer sleeve set outside the rectangular middle sleeve, and a rectangular outer sleeve arranged in the rectangular middle sleeve. Two outer end plates at both ends of the casing, two inner end plates arranged at both ends of the rectangular inner casing, pulleys arranged on the side of the inner end plate close to the rectangular inner The tie rods and the second set of pre-tension rods are used to connect the frictional energy-dissipating parts of the bottom plate of the rectangular middle sleeve and the bottom plate of the rectangular outer sleeve. The other end of the tube is connected to the second connecting plate with the rectangular outer casing; after the first group of pre-tension rods bypasses the pulley connected to the inner end plate at one end, the two ends of the first group of pre-tension rods are respectively anchored to the outer end plate and The inner end plate at the other end; after the second set of pre-tension rods bypasses the pulley connected to the inner end plate at the other end, the two ends of the second set of pre-tension rods are respectively anchored to the outer end plate at one end and the inner end plate at one end.

Description

technical field [0001] The invention belongs to the field of civil engineering and relates to a large-deformation pulley block self-centering frictional energy consumption support 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, but the overall function will not be lost, relying on the plastic deformation of the components to dissipate most of the seismic energy, so as to achieve The purpose of ensuring the safety of the main structure. However, the plastic deformation of components will lead to large residual deformation of the structure after the earthquake, which will greatly increase the difficulty of structural repair. [0003] In order to control the residual deformation of the structure, ...

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Problems solved by technology

[0004] Technical problem: The present invention aims at the problem that the existing self-centering support has a large demand for the elastic elongation of the pre-tie rod, and the traditional prestressed material cannot meet the requirements, and provides a large deformation pulley block that can effectively reduce the demand for the elastic elongation of the pre-tie rod Self-Centering Friction Dissipating Support

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