Anti-overturning structure additionally arranged for existing single-pier bridge

Abstract

The invention discloses an anti-overturning structure additionally arranged for the existing single-pier bridge, which comprises a main beam, a single pier used for supporting the main beam, small bent caps arranged on the two sides of the single pier and check block bodies arranged at the outer ends of the two sides of the upper portions of the small bent caps, and steel springs connected with the check block bodies are arranged between the check block bodies and the side wall of the main beam. An anti-overturning support and an NV rubber mudguard are arranged between the small bent cap and the main beam, and the two ends of the anti-overturning support are connected with the top of the small bent cap and the bottom of the main beam respectively; the bottom of the NV rubber mudguard is connected with the top of the small bent cap in an anchored mode. By reducing the overturning moment of the bridge in the transverse direction and the energy absorption and buffering effects of the NV rubber mudguard, the anti-overturning force of the bridge is additionally provided through the elastic force of the steel spring, so that the anti-overturning capacity of the bridge is enhanced, the stress condition of the bridge is improved, and potential safety hazards of an existing bridge are eliminated.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to an anti-overturning structure added to an existing single-pillar pier bridge. Background technique [0002] After the reform and opening up, a large number of roads and urban bridges have been built successively across the country, many of which are large [0003] Interchange communication. With the rapid development of social and economic construction, the rapid increase of vehicle carrying capacity and driving speed has posed severe challenges to the carrying capacity and anti-overturning capacity of existing bridges, especially for the early design of interchange bridges. [0004] The upper structure of the interchange bridge designed in the early stage basically adopts the cast-in-place reinforced concrete curved beam, and the lower structure is basically [0005] This adopts the form of pier column + cover beam, and the support is set on the top o...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide an anti-overturning structure added to the existing single column pier bridge, which solves the problems of insufficient anti-overturning ability in the use of existing bridges, and is especially suitable for curved girders. Construction of additional anti-overturning and anti-falling beam devices for bridges with single-column piers such as straight beams, special-shaped beams, etc.

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