Breakaway steel guardrail post

Details Breakaway steel guardrail post Breakaway steel guardrail post

E - Fixed Constructions

01

F

E01F 15/00 (2006.01) E01F 9/018 (2006.01) E01F 15/04 (2006.01)

Patent

CA 2348376

A breakaway guardrail post includes upper and lower post sections (12, 14) spaced apart but connected by a breakaway joint (16). The joint is attached at one end to the upper post section (12) by a first fastener set (20) and connected at a second end by a second fastener set (24). The first fastener set (20) has a failure strength less than that of the second fastener set (24). Upon impact forces being applied to the upper post section, the first fastener fails and the upper post section (12) rotates downwardly.

L'invention concerne un montant de glissière de sécurité en acier comprenant des parties supérieure et inférieure (12, 14) éloignées mais reliées par un joint de rupture (16). Cette articulation est reliée au niveau d'une extrémité à la partie supérieure (12) par un premier ensemble de fixation (20) et reliée au niveau d'une seconde extrémité par un second ensemble de fixation (24). Le premier ensemble de fixation (20) présente une résistance à la rupture inférieure à celle du second ensemble de fixation (24). Sous l'impact de forces, résultant d'une collision, exercées sur la partie supérieure du montant, le premier ensemble de fixation se rompt et la partie supérieure du montant (12) se tourne vers le bas.

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