Earthquake proof PTFE (Poly Tetra Fluoro Ethylene) plate rubber bearing small displacement comb plate extensible device

Abstract

The invention discloses an earthquake proof PTFE (Poly Tetra Fluoro Ethylene) plate rubber bearing small displacement comb plate extensible device which is characterized in that chutes are arranged on the bottom surface of the front end of a flexible comb plate; steel pins which are connected with a beam body B in a welding mode are arranged inside the chutes; the steel pins are connected with the chutes in a sliding mode; one end of the flexible comb plate is fixed on PTFE plate rubber bearings which are connected with a beam body A in a welding mode; one end portion of the flexible comb plate is provided with a horizontal deformation joint; the other end of the flexible comb plate socket which is flatly arranged on a sliding plate is connected with comb teeth of a fixed comb plate in a socket mode; the flexible comb plate is connected with the sliding plate in a sliding mode; and the fixed comb plate is fixedly connected with the sliding plate. Compared with the pair art, the earthquake proof PTFE plate rubber bearing small displacement comb plate extensible device has the advantages of being capable of three-dimensionally deforming namely, plane rotating, vertical rotating and performing horizontal displacement and capable of performing coordination deformation along with a bridge structure, satisfying vertical and horizontal extra large displacement deformation, being simple in structure, convenient to construct, strong in shock absorption capability and low in noise, enabling construction costs to be reduced by 30 to 40 % compared with same type products and particularly being suitable for high-grade highways and viaducts.

Description

technical field [0001] The invention relates to the technical field of bridge structures, in particular to a small-displacement comb-tooth plate telescoping device for an anti-seismic PTFE plate rubber bearing. Background technique [0002] Nowadays, all parts of the world are in a period of high incidence of earthquakes. Earthquakes cause great harm to people, so that people have raised their awareness of earthquake fortifications, and have adopted earthquake prevention measures for building structures, including bridge structures. Certain earthquake-proof facilities have also been adopted. As the beam-tooth-tooth plate telescopic device must strengthen anti-seismic measures, so that it can continue to be used safely after an earthquake occurs. Up to now, there is basically no report on the comb-tooth plate telescopic device meeting the anti-seismic requirements. [0003] Patent No.: ZL2012 20402123.4, "An Anti-seismic Small Deformation Comb Plate Telescopic Device", the m...

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Problems solved by technology

However, the tensile ball bearing is a spherical steel bearing structure, and the manufacturing cost is high. The displacement mechanism of the limit tension rod is difficult to process and construct, and the impact resistance is low, and it is easy to generate noise.

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