Anti-bending friction support

An anti-buckling, friction-energy-consuming technology, applied in earthquake-proofing, building components, etc., can solve the problems of friction damper buckling failure, complex node connection structure, improper support design, etc., to achieve good durability and reduce economic and social impact. , the effect of easy acquisition

CN103088932AInactive Publication Date: 2013-05-08CABR TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-05-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an anti-bending friction support which comprises a friction energy consumption core used for energy consumption and an anti-bending casing wrapped on the outside of the friction energy consumption core and used for support. A plurality of binding grooves are arranged on the inside of the anti-bending casing in the length direction, and the portion of the friction energy consumption core corresponding to the binding groove is arranged on the binding groove in the sliding mode along the length direction. The anti-bending casing is added on the anti-bending friction support on the basis of the friction energy consumption core, and stability of the support under high slenderness ratio and large pressure is improved. The anti-bending friction support resolves the problem of energy consumption support efficacy lose due to the fact that a common friction energy consumption support meets bending instability under the seismic effect due to the fact that the friction energy consumption core receives large stress and improves shock resistance and reliability of a building structure adopting the friction energy consumption support and under the strong shock effect.
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Description

technical field

[0001] The invention relates to a buckling-resistant friction support (BRFB) composed of a friction core and a buckling-resistant shell, which is mainly used in the field of energy dissipation and shock absorption of building structures. Background technique

[0002] The traditional building structure design mainly relies on the strength, stiffness, ductility and energy dissipation capacity of the building structure itself to resist the load. Earthquake damage shows that under the action of a major earthquake, the main body of the building structure often suffers damage or even irreparable damage and damage, and the resulting loss is huge. By dissipating seismic energy through passive energy-dissipating devices installed in the building structure, the deformation and damage of the building structure can be greatly reduced. As an energy-dissipating device, the friction damper has a strong energy-dissipating capacity, and the load size and frequency have littl...

Examples

Embodiment 1

[0034] Such as Figure 1-Figure 5 As shown, the Buckling-Restrained Friction Brace (BRFB for short) of Embodiment 1 of the present invention includes a buckling-restrained outer shell 4 for support and a frictional energy-dissipating core 100 located in the buckling-resistant outer shell 4; In an example, the friction energy dissipation core 100 includes two second steel plates 2 and a first steel plate 1 sandwiched between the two second steel plates 2, and friction materials 3 are attached to both sides of the first steel plate 1; A strip chute 12 is provided along the length direction of the first steel plate 1, and a plurality of connecting holes 21 opposite to each other are provided on two second steel plates 2; the friction energy dissipation core 100 passes through the connecting holes 21 It is connected with a plurality of connecting pieces 6 of the bar-shaped chute 12. In this embodiment, the connecting pieces 6 are bolts. Of course, other connecting pieces can also ...

Embodiment 2

[0043] Such as Figure 10 , Figure 11 As shown, the difference between Embodiment 2 and Embodiment 1 is that the first steel plate 1 is fixedly connected with a plurality of purlins on one side for adhering the friction material 3, and the height of the purlins protruding from the first steel plate is slightly smaller than that of the friction material 3. As long as the deformation space generated by the pre-pressure is left.

[0044] In this embodiment, the purlins can be steel bars welded on the surface of the first steel plate 1, and before the friction material 3 is attached to the first steel plate 1, the purlins are first welded, and then the friction material 3 is attached to the surface of the first steel plate 1, and the purlins It can help the friction material 3 bear compressive stress and shear stress, and prevent the friction material 3 from falling off or being extruded under the action of a large pre-pressure. Such as Figure 11 As shown, in this implementat...