Mechanical & Materials Engineering, Department of

 

Document Type

Article

Date of this Version

7-3-2001

Citation

United States Patent Rohde et al. Patent No.: US 6,254,063 B1

Abstract

An improved breakaway steel guardrail post for use in dissipation of impact energy upon impact of the post having an upper post member and a lower post member, a connecting joint, and a mechanism connected to the upper and lower post members for controlling the energy dissipation of the guardrail post about the connecting joint at a predetermined rate. A first embodiment utilizes a cable restraint lopped through openings in he guardrail posts. Other embodiments included straps and fasteners disigned to distort or fail at predetermined rates or strengths and combinations thereof.

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