Twist Box Guardrail Terminal

摘要

This guardrail terminal design incorporates an impact head of open front configuration adapted with the rear portion as a funnel disposed with the narrow end of the funnel facing forward which will flatten the W beam guardrail as it moves down the beam when impacted by a vehicle. Tension is maintained on the beam by flat strips connected from the beam through top open front of the impact head and is attached to a front anchor post. A wedge shaped reverse direction bracket with slotted bolt holes such that the slots open toward the traffic direction disposed at the back of the impact head where it connects to the guardrail will allow for reverse direction impacts to be accounted for.

主权项

1. A twist box guardrail terminal comprising:
a beam; an impact head of open front configuration, adapted to flatten the beam as it moves down the beam when impacted by a object; means to attach the impact head to the guardrail; a front anchor; a connector member; means to attach the connector member to the guardrail; means to attach the connector member such that it extends from the guardrail through the open front of the impact head and is attached to the front anchor.