Universal spherical hinge rubber support applied to assembly type bent slope inclined road beam bridge

Abstract

The universal spherical hinge rubber support comprises a lower support body and an upper support body, the lower support body comprises a rubber base body, a plurality of steel plates evenly embedded in the lower portion of the rubber base body and a concave steel spherical hinge seat arranged on the upper portion of the rubber base body, and the concave steel spherical hinge seat is arranged on the upper portion of the rubber base body. A concave spherical surface is arranged in the middle of the top surface of the concave steel ball hinge seat; the upper support is a convex steel ball hinged support, and the bottom face of the upper support is provided with a convex spherical face matched with the concave spherical face. The universal spherical hinge rubber support applied to the assembly type bent slope inclined road beam bridge adapts to inclination angle errors during beam body installation and inclination angle changes caused by beam body deformation in the operation process, it is guaranteed that the lower portion of the rubber support is evenly stressed, the service life of the support is prolonged, the replacement frequency of the support is reduced, secondary diseases of an upper structure are reduced, and the service life of the support is prolonged. And the disease treatment frequency and cost are reduced.

Description

technical field [0001] The invention belongs to the field of bridge bearings, in particular to a universal spherical hinge rubber bearing applied to an assembled curved slope inclined highway girder bridge. Background technique [0002] At present, prefabricated concrete beams are the most widely used and the largest proportion of structures in highway bridge construction in my country. Common prefabricated structural forms mainly include hollow slab beams (including solid slabs, the same below), small box girder and T beam. Because of their simple structure, clear force, convenient construction and mature technology, they are widely used in highway engineering. It has been widely used in construction projects and has made important contributions to the cause of highway transportation. However, many diseases have also occurred in recent years, especially in slope bridges, curved bridges, and inclined bridges. It is related to the uneven force on the seat. [0003] The brid...

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Problems solved by technology

However, in the process of installation and bridge operation, it cannot adapt to the inclination error of the beam during installation and the inclination change caused by the deformation of the beam during operation. It is always in a biased state during use. After 3 to 5 years of use, it still remains There are different degrees of damage and deformation, the service life of the support is greatly reduced, and the replacement is frequent, resulting in a mismatch between the service life of the bridge and the service life of the support. This will first affect the performance of the bridge, and secondly, the repeated deformation of the beam and slab will Accelerate the damage of the hinged joints connecting the beams and slabs, and form a single slab under stress, which will cause bridge deck or beam slab diseases, and the cost of disease remediation is high

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