| 摘要 |
A new guardrail comprises spaced out uprights or posts, on which is carried, by means of deformable spacer elements, a horizontal rail comprising two strips with a double wave, situated opposite each other, connected to each other at intervals by means of ribs or cross stiffening brackets bolted to the strips. The strip and the ribs are made of steel. The spacer has a straight lower inclined side and a curved or bent upper side. In some variants the barrier has one or two continuous upper elements at the tophaving considerable bending stiffness.
|
