Automatic-reset support equipped with stepless regulating friction energy dissipation device

Abstract

The invention relates to an automatic-reset support equipped with a stepless regulating friction energy dissipation device. The support comprises a connection transmission mechanism, an automatic-reset mechanism and a friction energy dissipation mechanism, wherein the connection transmission mechanism comprises an outer sleeve, an inner sleeve, two end connecting plates and two end plates, the inner sleeve is arranged in the outer sleeve and is fixed to the outer sleeve in a radial direction, the two end connecting plates are located at two opposite ends and are fixedly connected to the ends of the inner sleeve and the outer sleeve correspondingly, the two end plates are located on the two axial sides of the outer sleeve and the inner sleeve correspondingly; and the friction energy dissipation mechanism comprises two inner friction plates, two outer friction plates and pre-tightening bolts, wherein the two inner friction plates, the two outer friction plates and the pre-tightening bolts are fixed on the outer sleeve and the inner sleeve, and the two outer friction plates clamp the two inner friction plates through pre-tightening bolts. Compared with the prior art, the support can solve the conflict between supporting energy dissipation capacity and the automatic-reset capacity, obstruction of supporting reset is reduced while the reliable energy dissipation capacity is provided, and flexibility of supporting loading and unloading rigidity and yield bearing capacity adjustment is realized.

Description

technical field [0001] The invention belongs to the technical field of anti-side support, and relates to a self-resetting support equipped with a stepless adjustment frictional energy consumption device. Background technique [0002] Bracing is widely used in the field of civil engineering as a lateral component of building structures, but traditional bracing will lose its function due to excessive residual deformation and buckling of core components after strong earthquakes. For this reason, there are BRB braces that can prevent brace buckling and self-resetting braces that provide a certain self-recovery ability to reduce residual deformation. [0003] Since the BRB support still has a large residual deformation after a strong earthquake, in order to reduce the post-earthquake damage and deformation of the structure, a newest technology is to use the superelastic prestress as the preloaded core component (cable, bar, etc.) The recovery force provided is to promote the sel...

AI Technical Summary

Problems solved by technology

However, since the friction force provided by the traditional frictional energy dissipation form always has a tendency to hinder the movement, when the support is unloaded, the excessive friction force will hinder the self-resetting ability of the support

At the same time, the loading and unloading stiffness and bearing capacity of the existing self-resetting support are coupled with each other and cannot be adjusted independently

The above problems limit the further promotion and application of self-resetting supports

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