Releaseable anchor cables for cable barriers that release upon certain load conditions upon the cable barrier

摘要

A cable-barrier system that includes an anchor-body and terminal post which receive and retain one or more anchor-cables and are anchored to counter balance the force applied to the anchor body by one or more barrier-cables. The system also allows for the release of the anchor-cables during a collision with a vehicle.

主权项

1. A terminal post for a cable-barrier which includes:
an upright cable-portion including an aperture, having an open top end, which is releasably receiving and retaining one or more barrier-cables; and an anchor-body attached to said cable portion and including an aperture in the form of a slot releasably receiving and retaining one or more anchor-cables distinct from said one or more barrier-cables, the one or more anchor-cables releasably received and retained within the slot, the slot including a mouth at the bottom end thereof through which said one or more anchor-cables are configured to slideably exit, upon application of a downward force on said one or more anchor-cables, to slideably release said anchor-cables from the anchor-body, and wherein the one or more anchor-cables are each anchored to a footing so as to counter balance the force applied to the terminal post by said one or more barrier-cables; wherein, upon collision of a vehicle with said cable-barrier in such a way that a downward force is exerted on said one or more anchor-cables or said anchor-body, at least one of said anchor-cables and said barrier-cables slideably release from said slot in the anchor body or said aperture in the cable portion, respectively, thereby causing the other of the said anchor-cables or said barrier cables to slideably release from said slot in the anchor body or said aperture in the cable portion, respectively, so that said one or more anchor-cables and said one or more barrier-cables are both released from said cable-portion and said anchor-body respectively to release the anchor-body from the footing.