Laminated rubber support reinforced by combining fine high-strength steel wire meshes and steel fibers

Abstract

The invention relates to a laminated rubber support reinforced by combining fine high-strength steel wire meshes with steel fibers. The laminated rubber support consists of rubber bodies, fine high-strength steel wire meshes, outer-layer protecting rubber and steel fibers, wherein the fine high-strength steel wire meshes are thick meshes woven by high-strength steel wires, and the fine high-strength steel wire meshes are closely distributed in the rubber bodies layer by layer to restrain the side deformation of the rubber bodies, so that the support has rigidity and load-bearing capacity required by normal use; steel fiber materials are distributed in rubber in disorder, so that the mechanical property of the rubber bodies is improved, the connection of the fine high-strength steel wire meshes and composite rubber materials is closer, and the restraining effect is enhanced; favorable deformation capacity of the fine high-strength steel wire meshes and the connection action of the steel fibers ensure that the rubber bodies and the high-strength steel wire meshes can still synergistically work under the condition of extreme deformation, and the problems of adhesive failure and the like cannot occur. Under the action of earthquake, the laminated rubber support allows larger shearing deformation until upper and lower surfaces completely break away from a contact surface to present an overturning state and even generate horizontal scrolling, the earthquake force of an upper structure is prevented from being transmitted to a lower structure, the effect of earthquake insulation is exerted, and the safety of a bridge structure is ensured.

Description

technical field [0001] The invention belongs to the technical fields of bridge engineering and earthquake engineering, and in particular relates to a novel composite rubber bearing, in particular to a laminated rubber bearing with fine and dense high-strength steel mesh combined with steel fiber reinforcement. Background technique [0002] At present, in the construction of highway bridges in our country, plate rubber bearings and laminated rubber bearings have gradually been widely used, becoming the mainstream of bridge bearings at home and abroad, and rubber shock-absorbing and isolation bearings are important for bridge shock-absorbing and isolation Measures have gained more and more attention and achieved significant development. For non-stiffened bearings, due to the incompressibility of rubber, the deformation of rubber can only expand laterally, and the rubber at the convex drum will produce large tensile deformation, resulting in stress aging. The interior of the r...

AI Technical Summary

Problems solved by technology

The interior of the rubber body of the traditional plate rubber bearing is composed of thin rubber sheets and thin steel plates alternately combined to restrain the lateral expansion of the rubber. However, due to the thicker steel plate thickness of the plate type bearing, the proportion of the height of the support is relatively large. , when subjected to rare earthquakes, its shear deformation capacity is limited, because the plate bearing cannot roll and is sheared or loses its proper function

At the same time, the plate support also has the disadvantages of high support height and heavy weight.

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