Rectangular spherical hinge adjusting gradient laminated rubber bearing for highway bridge

Abstract

The invention discloses a rectangular spherical hinge adjusting gradient laminated rubber bearing for a highway bridge, which comprises a concrete bearing cushion and further comprises an concave arc steel plate and a bearing main body, wherein the concave arc steel plate is arranged in a beam; the bearing main body is arranged on the concrete bearing cushion; a steel spherical crown cylinder station is arranged at the top of the bearing main body; the top of the a steel spherical crown cylinder station is provided with a a steel spherical crown; and the spherical crown surface of the steel spherical crown is in fit with the concave arc surface of the concave arc steel plate. A steel plate can be arranged between the bearing main body and the concrete bearing cushion; a stainless steel plate is arranged between the steel plate and the bearing main body; and a polytetrafluoroethylene board is arranged between the stainless steel plate and the bearing main body. The rectangular spherical hinge adjusting gradient laminated rubber bearing for the highway bridge has a simple structure, is easy to manufacture and can be directly installed according to the longitudinal and transverse gradient requirements of the bridge, so that a leveling structure between the bearing and a beam body is omitted, the stress of the bearing is improved, the bearing is stressed in a balance mode, the bridge design is also simplified, the rectangular spherical hinge adjusting gradient laminated rubber bearing is convenient to install and replace and the bearing can be well suitable for the longitudinal and transverse gradients of the bridge.

Description

technical field [0001] The invention belongs to the field of bridges, and more specifically relates to a slope-adjusting plate type rubber bearing of a rectangular spherical hinge of a highway bridge, which is suitable for bridges located on longitudinal and transverse slopes; suitable for oblique crossings with small spans and small slopes in conventional structures. Bridges and Orthogonal Bridges. Background technique [0002] The reaction force of the upper structure in the bridge structure is transmitted to the lower structure through the support, and the support is the main force-bearing member in the bridge structure. Bridges are usually located on the longitudinal and transverse slopes of the route, especially the longitudinal and transverse slopes of highway bridges. In order to ensure that the bearings are evenly stressed and there is no bias phenomenon, the bearings are generally required to be placed flat. In order to adapt to the longitudinal and transverse slop...

AI Technical Summary

Problems solved by technology

Due to the large width of highway bridges, both longitudinal and transverse slopes, the plane is inclined bridges and orthogonal bridges with small slopes, resulting in the different dimensions of the slope adjustment structure of each row of supports under the girder slab, resulting in the fabrication and installation of supports. The slope adjustment structure of the seat is relatively complicated, and the actual installation workload is large, the installation quality is difficult to control, and it is easy to make mistakes, which will lead to defects and diseases in the bridge operation, affecting the use and life

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