Rigid hinged support for bridge

Abstract

The invention discloses a rigid hinged support for a bridge, comprising an upper support plate (1), a spherical cap lining plate (2) and a lower support plate (3) which are arranged from top to bottom, the lower support plate (3) is composed of a bearing base (5) with wedge-shaped cross section and an adjusting plate (6), the bearing base (5) and the adjusting plate (6) are attached by two inclined surfaces, a plane sliding plate (8), a middle steel linear plate (9) and a vibration reduction rubber pad (10) which are sequentially arranged from top to bottom are arranged between the upper support plate and the spherical cap lining plate (2), a shearing force hinge (11) is welded in the middle part of the middle steel linear plate (9); the concept in the invention is skillful, the cost is low, the installation is convenient owning to design of height adjustment; in addition, the support height can be adjusted according to practical condition to ensure the support to meet design requirements, and the design of the vibration reduction rubber pad enhances the vibration-reducing function.

Description

technical field [0001] The invention belongs to the technical field of bridges, and in particular relates to a rigid hinge support for bridges. Background technique [0002] The rigid hinge of the Jiashao Bridge adopts the method of nesting small steel box girders with large steel box girders, and sets special supports for rigid hinges on the joint surfaces of large and small steel box girders (such as image 3 As shown), the rigid hinge is mainly composed of a large box girder 13, a small box girder 14 and a support 15. In the direction along the bridge, the rigid hinge is formed by connecting the large box girder 13 at the left and right ends with the small box girder 14. The small box girder 14 Box girder 14 left end is fixed in the cavity of left big box girder 13, and right end stretches into the inner cavity of right big box girder 13 and supports big box girder 13 by bearing 15. Because the upper and lower support plates in the support 15 have the effect of relative s...

AI Technical Summary

Problems solved by technology

As a relatively large-scale equipment, it is troublesome to install and disassemble. The height of the support is usually greater than the distance between the large box girder and the small box girder. However, it is difficult to achieve more accurate design requirements due to various errors. may result in under- or over-support

At the same time, after long-term use, the skateboard will be worn out, so the height will be reduced and the support force will be reduced, which will affect the support effect.

In addition, the current support mainly includes an upper support plate 1, a spherical crown liner 2 and a lower support plate 3, and a spherical sliding plate 4 is arranged between the spherical crown liner 2 and the lower support plate 3, and the entire structure is basically rigid. Contact its vibration damping effect is not good

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