Anti-collision guardrail with buffering function for expressway bridge

Abstract

The invention discloses an anti-collision guardrail with a buffering function for an expressway bridge, which comprises two guardrail upright posts, a plurality of anti-collision beams and a plurality of anti-collision beams, the upper ends of the two guardrail upright posts are fixedly connected with each other through a reinforcing cross rod, and the upper ends of the two guardrail upright posts are fixedly connected with each other through the reinforcing cross rod; a speed reduction table which is installed at the front end of the lower surface of the guardrail stand column, and the speed reduction table is connected with the guardrail stand column in a welded mode; and resistance strain gauge collision sensors which are mounted at the front end of the speed reduction table, and the number of the resistance strain gauge collision sensors is four. According to the anti-collision guardrail, the airbag storage box is additionally arranged on the guardrail, after a vehicle is impacted, the sensor can receive a signal in time, the inflation system is ignited, the airbag is popped out of the airbag storage box and covers the front end of the guardrail, the flexible buffering effect is achieved, and therefore the situation that an existing anti-collision guardrail is integrally of a steel structure, and when the vehicle is accidentally impacted, the buffering effect is poor, and damage to a driver cannot be relieved.

Description

technical field [0001] The invention relates to the technical field of anti-collision barriers, in particular to an anti-collision barrier with a buffer function for expressway bridges. Background technique [0002] Guardrails generally refer to industrial "guardrails", which are mainly used for the protection and protection of personal safety and equipment and facilities in residences, highways, commercial areas, public places and other occasions. The anti-collision guardrail is a typical cold-formed steel product, which has the advantages of good impact resistance, low cost, long life, higher safety, and environmental protection. It is mainly used for the protection and protection of highway sections and bridge sections. Commonly used steel materials, such as round steel pipe, square steel pipe or profiled steel plate, the surface of the anti-collision guardrail for expressways usually needs to be painted, and the raw materials used are waterproof materials, which make the...

AI Technical Summary

Problems solved by technology

[0003] However, the existing anti-collision guardrail adopts a steel structure as a whole, and the cushioning effect is not good when encountering an accidental impact of a vehicle, which cannot slow down the damage suffered by the driver

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