All-steel self-restoring buckling-restrained brace based on disc spring

An anti-buckling support and self-resetting technology, which is applied in the direction of earthquake resistance, bridge parts, bridges, etc., can solve the problems of increased maintenance and reconstruction costs after earthquakes, insufficient ultimate elastic deformation capacity, and high cost of self-resetting materials to improve energy consumption. Energy effect, obvious shock absorption effect, good energy dissipation capacity and self-resetting function

Active Publication Date: 2017-04-19
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the post-earthquake maintenance and reconstruction cost increased due to the excessive residual deformation of the buckling support under the action of a large earthquake or a moderate e

Method used

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  • All-steel self-restoring buckling-restrained brace based on disc spring
  • All-steel self-restoring buckling-restrained brace based on disc spring
  • All-steel self-restoring buckling-restrained brace based on disc spring

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Embodiment 1

[0033] to combine Figure 1-7The embodiment of the all-steel self-resetting anti-buckling brace is described.

[0034] Anti-buckling part: The anti-buckling part is composed of left and right connecting plates, a straight steel plate inner core, steel core stiffeners, unbonded expandable material, and an inner casing. The one-shaped steel plate inner core is cut and formed by low yield point Q235 steel. Two stiffeners are welded at the left and right ends of the steel core to realize the smooth transition of the steel core section and avoid the influence of stress concentration. The two ends of the steel core and The stiffeners at both ends are respectively welded on the left and right connecting plates. Evenly coat a layer of 1-2mm unbonded expandable material on the surface of the yield section of the steel core to reduce or effectively eliminate the friction between the core unit and the restraint unit, so as to avoid the asymmetry of tension and compression. This embodime...

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Abstract

The invention discloses an all-steel self-restoring buckling-restrained brace based on a disc spring, and belongs to the technical field of disaster prevention and shock absorption for civil engineering. The all-steel self-restoring buckling-restrained brace is mainly composed of an in-line steel plate inner core, a stiffening rib, a non-bonding material, an inner sleeve, an outer sleeve, the combined disc spring, a stop block, a stop plate, a left connection plate and a right connection plate. The brace is composed of a buckling-restrained part and a self-restoring part, the buckling-restrained part is composed of the in-line steel plate inner core, the stiffening rib, the non-bonding material, the inner sleeve, the left connection plate and the right connection plate, and the self-restoring part is composed of the inner sleeve, the disc spring, the stop block, the stop plate and the outer sleeve. The buckling-restrained brace disclosed by the invention is capable of effectively solving the problems of the increased post-earthquake maintenance and reconstruction cost due to the excessive residual deformation of the buckling-restrained brace under the action of a major earthquake or a medium earthquake, and high cost, low ultimate elastic deformation capacity and the like of a self-restoring material in an existing self-restoring energy dissipating brace. The all-steel self-restoring buckling-restrained brace based on the disc spring is simple in structure, clear in working mechanism, economic and applicable, and stable in performance.

Description

technical field [0001] The invention relates to the field of anti-seismic technology of civil engineering, and is an energy-dissipating shock-absorbing device applied in the field of construction and bridge engineering. The all-steel self-resetting anti-buckling support has good energy-dissipating capacity and self-resetting function. Background technique [0002] In recent years, the social and economic problems caused by earthquakes have drawn more and more attention to structural anti-seismic technology. The frame bracing system solves the problem of lateral stiffness of the structure to a certain extent, but under the reciprocating load of a large earthquake, the ordinary bracing is likely to cause failure and destruction of itself and the connection. dissipate the seismic input energy. The anti-buckling support can yield without buckling under both tension and compression, so it overcomes the shortcomings of traditional supports that the buckling strength under compres...

Claims

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Application Information

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IPC IPC(8): E01D19/00E04B1/98E04H9/02
CPCE01D19/00E04H9/021
Inventor 韩强王晓强贾振雷董慧慧
Owner BEIJING UNIV OF TECH
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