Self-resetting steel support with pre-pressing disc spring and friction damper

Abstract

The invention provides a self-resetting steel support with a pre-pressing disc spring and a friction damper. The self-resetting steel support comprises a resetting system and a friction energy consumption system, wherein the resetting system comprises a left anchoring plate and a right anchoring plate; a first high-strength bolt and a plurality of second high-strength bolts penetrate the two anchoring plates; the composite combined disc spring is arranged at the position, between the two anchoring plates, of the first high-strength bolt in a penetrating manner; the two ends of the composite combined disc spring are anchored to the left anchoring plate and the right anchoring plate correspondingly; nuts at the two ends are screwed to extrude the left anchoring plate and the right anchoring plate, and therefore pre-tightening force is applied to the composite combined disc spring; the friction energy consumption system comprises a left friction sleeve and a right friction sleeve; the left friction sleeve penetrates the right friction sleeve or the right friction sleeve penetrates the left friction sleeve to form friction, and reciprocating motion and limiting are achieved through connection of a round hole, a long hole in the penetrating direction and a third high-strength bolt; and the interiors of the left friction sleeve and the right friction sleeve which are combined are enough to contain the resetting system. The self-resetting steel support has the beneficial effects that functions can be recovered, stress is reasonable, the structure is simple, and manufacturing is convenient and fast.

Description

technical field [0001] The invention belongs to the technical field of construction, and relates to a self-resetting steel support, in particular to a self-resetting steel support with a preloaded disc spring and a friction damper. Background technique [0002] The existing ordinary steel support members are prone to global or local buckling failure during cyclic loading, and the energy dissipation capacity of the members decreases sharply after buckling. At the same time, the hysteretic performance of ordinary steel support members has obvious tension-compression asymmetry. [0003] The existing buckling-resistant bracing overcomes the shortcomings of ordinary steel bracing members such as easy buckling under pressure by adding restraint members on its periphery, and effectively improves the overall energy dissipation capacity of the bracing. However, the anti-buckling support: (1) its damage location is random, such as: the limit card and the weld seam at the end of the s...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a self-resetting steel support with a pre-compressed disc spring and a friction damper, which solves the problem of large axial displacement of the support in the existing self-resetting frictional energy-consuming steel support. Large residual deformation leads to complex steel support structure and high manufacturing precision requirements, and the friction energy dissipation device can be adjusted by torque wrench for friction force, and at the same time, it can be replaced after the friction plate is worn out in the later stage, and its function can be restored , reasonable force, simple structure, convenient manufacture, etc., can be applied to new structures with supports or reinforcement of old structures

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