Spring rubber support

Abstract

The invention relates to a spring rubber support, which comprises an upper flange plate, internal steel springs, a rubber layer and a lower flange plate. The internal steel springs and the rubber layer are fully combined together through vulcanization. The lower ends of the internal steel springs are reliably connected with the lower flange plate. The upper ends of the internal steel springs are reliably connected with the upper flange plate. Under the existence of the internal steel springs, the transverse deformation of rubber after the rubber is compressed is effectively restricted and the vertical rigidity of the support is greatly improved. The spring rubber support can consume acting energy produced to a bridge during occurrence of an earthquake. When horizontal displacement occurs, the internal steel springs and the rubber layer can jointly bear stress, the upper flange plate and the lower flange plate are enabled to move towards a central balance position by virtue of self characteristics, a self-restoring function is achieved and work such as structural restoration maintenance after the earthquake is avoided. The spring rubber support has the advantages of simple structure, convenience in manufacturing, strong restoration capacity and higher economic and social benefits.

Description

Technical field [0001] The invention belongs to the technical fields of civil engineering, earthquake engineering, and mechanical engineering, and specifically relates to a new type of shock-absorbing and isolating support composed of a steel spring and rubber, in particular to a spring rubber support. Background technique [0002] In recent decades, as an important measure for bridge seismic isolation, seismic isolation bearings have received more and more attention and made significant developments. Laminated rubber bearings, basin rubber bearings, FPS (hyperbolic spherical bearings) have gradually been widely used, and have become the mainstream of bridge bearings at home and abroad. Among several types of shock-absorbing and isolating bearings, basin rubber bearings and hyperboloid spherical bearings are generally used for larger bearing tonnage; laminated rubber bearings are currently mainly used on small and medium-sized bridges. In the event of a major vibrational shock, ...

AI Technical Summary

Problems solved by technology

However, the above-mentioned laminated rubber bearings are generally selected according to industry standards, and users cannot choose the size of the horizontal stiffness of the bearing. Even if it can be customized, the horizontal stiffness of the bearing is limited by its own characteristics and size, and sometimes it cannot Reach the rigidity required by the user

In addition, only relying on the rubber layer to provide the post-earthquake recovery force sometimes cannot restore the center of the upper and lower flange plates of the support to a vertical line, so other methods must be used to adjust the support to the center vertical line during post-earthquake repairs. Online or have to replace the new support

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