Flexible energy dissipation type pier anti-collision safety device with composite structure

Abstract

The invention relates to the technical field of a safety protection device in the bridge engineering construction, in particular to a flexible energy dissipation type pier anti-collision safety device with a composite structure. The invention aims at solving the problems that the safety of an automobile, pedestrians and a pier is difficult to be ensured when the automobile is rigidly collided with the pier in the prior art. The invention adopts a technical proposal at present: the flexible energy dissipation type pier anti-collision safety device with the composite structure comprises a steel anti-collision wall which takes the shape of a cylinder; the vertical hollow cross section of the anti-collision wall is rectangle; clamping arranged elastic energy dissipation material blocks along the horizontal direction are distributed in the anti-collision wall; a spring is arranged among every four elastic energy dissipation material blocks; the springs are horizontally clamped in the anti-collision wall; the bottom of the anti-collision wall is a base steel plate on which an anchor is arranged in a perforating way; and the upper end and the lower end of the inner side of the anti-collision wall are respectively provided with an energy dissipation piece horizontally. The invention has the advantages of: 1) high safety and good effect; 2) simple structure, easy construction, less engineering investment and convenient maintenance.

Description

technical field [0001] The invention relates to the technical field of safety protection devices in bridge engineering construction, in particular to a flexible energy dissipation type bridge pier anti-vehicle collision safety device with a composite structure. Background technique [0002] At present, the current situation of road traffic safety in our country is worrisome. Due to the increase in traffic volume, the contradiction between cars and bridges (especially overpass bridges) has become more and more prominent. Accidents of cars hitting bridge piers often occur, and in severe cases, bridge piers will collapse. The car crash caused irreparable loss of life and property. The reason is that the direct impact of the car on the bridge pier is a rigid impact, and this process lacks energy dissipation, so the damage is extremely great. [0003] In order to solve this problem, some anti-collision measures have been taken in the existing design, such as increasing the struc...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a flexible energy-dissipating bridge pier anti-vehicle collision safety device with a composite structure, so as to overcome the problem in the prior art that it is difficult to ensure the safety of automobiles, pedestrians and bridge pier when a car collides with a bridge pier rigidly

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