Dual-spherical beam lifting prevention damping support

Abstract

The invention belongs to the technical field of bridge supports and particularly relates to a dual-spherical beam lifting prevention damping support which comprises an upper support plate and a lowersupport plate. An upper swing part, a spherical crown upper lining plate and a spherical crown lower lining plate are sequentially arranged between the upper support plate and the lower support platefrom top to bottom. A planar abrasion-resistant sliding plate is inlaid in the upper face of the upper swing part, and the planar abrasion-resistant sliding plate and a stainless steel plate fixed tothe lower face of the upper support plate form a first friction pair; an upper curved surface abrasion-resistant sliding plate is inlaid in the concave spherical surface of the lower face of the upperswing part, and the upper curved surface abrasion-resistant sliding plate and a spherical stainless steel plate covering the curved surface of the spherical crown upper lining plate in a pasted modeconstitute a second friction pair; a planar energy dissipation plate welded to the lower plane of the spherical crown upper lining plate and a planar energy dissipation plate welded to the upper faceof the spherical crown lower lining plate in an inlaid mode constitute a third energy dissipation friction pair; and the lower face of the spherical crown lower lining plate is a convex spherical surface covered with a stainless steel plate, and the stainless steel plate and an abrasion-resistant sliding plate fixed to the concave spherical surface of the upper face of the lower support plate constitute a fourth friction pair. The dual-spherical beam lifting prevention damping support has the functions of beam lifting prevention, planar friction energy dissipation and beam falling prevention.

Description

technical field [0001] The invention belongs to the technical field of bridge supports, and in particular relates to a double-spherical anti-lifting beam damping support. Background technique [0002] my country's terrain is complex and earthquakes occur frequently, resulting in bridge damage that directly results in loss of personnel and property, and interruption of traffic. In my country, various seismic isolation technologies and specifications are used to analyze and study the mechanism of earthquakes, and the bridge bearings are designed for seismic isolation and damping through technical means such as seismic isolation and shock absorption. The ground motion during an earthquake is consumed by the internal structure of the support. Or reduce the seismic energy, minimize the transmission of energy generated by seismic waves to the upper part of the support, and cause damage to the beam body. Most shock-absorbing and isolation bearings have the phenomenon of lifting bea...

AI Technical Summary

Problems solved by technology

Most shock-absorbing and isolation bearings have the phenomenon of lifting beams at the same time as they slide horizontally, causing unevenness of the roadbed and damage between the upper structure of the beams, which brings potential safety hazards. The design is not comprehensive, and the beam body may be driven by the bearings. Sliding out of the design displacement or infinite structure causing beam drop accidents

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