Road safety barriers
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United States of America Patent
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Mar 3, 2009
Grant Date -
Oct 20, 2005
app pub date -
Sep 15, 2004
filing date -
Sep 17, 2003
priority date (Note) -
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Abstract
rigidly mounted on or in the ground is described. Each rope is held in tension against the posts and follows a sinuous path between the posts. The ropes are tensioned against the posts and this gives rise to a combined frictional resistance to displacement of the ropes relative to each post along the length of the safety barrier. The structure of at least some of the posts and/or their mounting with respect to the ground defines a minimum bending yield strength in a direction along the length of the barrier. This minimum bending yield strength is greater than the bending moment resulting from the combined frictional resistance forces acting on the post.
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