Anti-bending friction support

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.

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...

AI Technical Summary

Problems solved by technology

However, the friction damper also has certain shortcomings in the application of engineering. First, the two materials that rub against each other maintain long-term static contact under constant positive pressure, which will cause cold bonding or cold solidification. The friction coefficient between them will change; secondly, the friction damper is usually set in the frame support to form a frictional damping energy dissipation support, but the setting of the support brings new problems, one is the complex structure of the node connection, the other is the Improper design can lead to buckling failure of friction dampers

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