Road bridge pier safety protection device

Abstract

The invention discloses a road bridge pier safety protection device. The device comprises a base, wherein the base is located at the bottom end of a pier, a lower fixing sleeve is fixedly connected tothe upper end of the base, an upper fixing sleeve is fixedly connected to the position, corresponding to the lower fixing sleeve, of the top end of the pier, a rod body is fixedly connected to the lower end of the upper fixing sleeve, and a first-stage vibration eliminating mechanism is arranged at the end, away from the upper fixing sleeve, of the rod body. By arranging the first-stage vibrationeliminating mechanism, vibration on the pier is transmitted to a spring through the rod body, the vibration eliminating effect is achieved through telescopic movement of the spring, one part of vibration of the rod body is transmitted to a shell through contact with the shell, and the shell further transmits the vibration to an elastic plate and a ball body through a mounting base and a clampingsleeve; and when the mechanical strain of the elastic plate is the same as the inherent frequency of the clamping sleeve, the elastic plate drives the ball body to resonate, when the ball body vibrates, the vibration capacity of the pier can be absorbed, and abrasion of the pier can be further reduced in cooperation with the first-stage vibration eliminating mechanism.

Description

technical field [0001] The invention relates to the technical field of bridge pier protection equipment, in particular to a road bridge pier safety protection device. Background technique [0002] The pier is mainly composed of a top hat and a pier body. The abutment is mainly composed of a top hat and an abutment body. The function of the top hat is to transmit the large and concentrated force transmitted from the bridge span support to the pier body and platform body in a dispersed and even manner. Therefore, the top hat should be constructed with high-strength materials, generally not less than 200-grade reinforced concrete, and the thickness is not less than 40 cm. In addition, the top hat must have a larger plane size to provide the necessary working surface for construction, beam erection and maintenance. The pier body and abutment body are the main structures supporting the bridge span, not only bearing all the loads from the bridge span structure, but also directl...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned schemes all use springs to achieve buffering, slow down the impact of vehicles on the pier, and avoid serious damage to the pier, but the probability of vehicles hitting the pier is low, and vehicles, especially large vehicles, pass by the pier or sideways When the vibration is generated, it will continue to wear the piers, thus continuing to change the

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