| 摘要 |
A deformable safety barrier placed along a roadside, the barrier being constituted by metal section bars (11) assembled to one another by partial overlapping and by bolting, and supported at intervals by vertical posts, the bar section (11) having a central groove (1) with a rib (2) on either side thereof, the ribs projecting towards the road, each rib also having an outer flange (3a) extending away from the road, the barrier being characterized in that the outer flanges (3a) of the ribs (2) of the section extend beyond the vertical plane XX' tangential to the bottom of the central groove (1) by a distance lying between one-half and twice the distance between said vertical plane XX' and the points of the ribs (2) closest to the road.
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