Lead core rubber support composited by high-strength steel fibers and fine steel wire meshes

Abstract

The invention relates to a lead core rubber support composited by high-strength steel fibers and fine steel wire meshes. The lead core rubber support consists of an upper connecting steel plate, an upper seal plate, internal rubber layers, high-strength fine steel wire mesh layers, steel fibers, a lead core, a rubber protecting layer, a lower seal plate and a lower connecting steel plate, wherein lead core press-in holes are reserved in the high-strength fine steel wire mesh layers according to lead core design positions, hook treatment is performed on high-strength steel bars at hole opening positions, the steel fibers which are distributed in disorder are mixed in the upper sides and the lower sides of high-strength fine steel wire meshes, then the steel fibers are fully glued and vulcanized with rubber, the lead core is pressed in, and the rubber protecting layer is vulcanized outside the lead core so as to form a lead core rubber cushion; the upper seal plate and the lower seal plate are respectively adhered with the upper surface and the lower surface of the lead core rubber cushion, and are connected with the upper and lower connecting steel plates through wedges so as to form the whole support. According to the lead core rubber support disclosed by the invention, the high-strength fine steel wire meshes are used for replacing reinforced steel plates, so that the shearing capacity and the deforming capacity of the lead core rubber support are stronger, and the weight of the whole support is lighter. Through the net-shaped structures of the high-strength fine steel wire meshes and the mixing of the steel fibers, the rubber between the steel wire mesh layers can be vulcanized to form a whole.

Description

technical field [0001] The invention belongs to the technical fields of civil engineering and earthquake engineering, and in particular relates to a lead-core rubber bearing which uses a high-strength fine-density steel wire mesh instead of a stiffened steel plate. Background technique [0002] In recent decades, seismic-isolation bearings, as an important measure of bridge seismic isolation, have received more and more attention and achieved significant development. Among them, the lead rubber bearing is widely used because of its excellent performance. The lead rubber bearing is a kind of anti-seismic bearing based on the general plate rubber bearing, and a lead core is placed in the bearing to improve the damping performance of the rubber bearing. The lead core rubber bearing has good hysteresis characteristics and strong energy dissipation capacity. Its initial shear stiffness can reach more than 10 times the stiffness of ordinary laminated rubber bearings, and the stif...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-strength steel fiber fine steel wire mesh composite lead rubber bearing with high pressure bearing capacity and strong shear deformation capacity in view of the shortcomings of insufficient shearing capacity of the existing lead rubber bearing

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