METALLIC SAFETY BARRIER USED IN THE MARGINS AND MEDIAN STRIPS OF ROADS FOR VEHICLE CONTENTION WITH A FUSIBLE MECHANISM FOR THE BOLTED JOINT CONNECTING ITS HORIZONTAL FENCE RAILINGS AND VERTICAL SUPPORT POSTS

摘要

Fusible mechanism for the bolted joint connecting the horizontal fence, beams or railings (1) of a metallic safety barrier to the vertical support poles (2) of same that confers said joining element the capacity to be released or disengaged in a controlled manner when the intensity of the force transmitted to said joining element by an impacting vehicle reaches a pre-established threshold value. Said joining element is comprised by a bolt (3) in which a straight section or area in the rod located at a particular distance from its head has been mechanically or chemically treated to reduce its mechanical resistance capacity.