| 摘要 |
A retainer (10a, 10b, 10c) for a wire rope road safety barrier, includes a plurality of posts (14), for supporting one or more wire ropes (12) above the ground. The retainer includes an arm (16a, 16b) for embracing at least half of a circumference of the post whereby the retainer can be held on the post at a position along its length. The retainer also includes a frangible or yieldable tab (18) extending from the arm for retaining the wire rope against the post. |
| 主权项 |
1. A retainer for use in a wire rope road safety barrier, the wire rope safety barrier comprising a plurality of posts for supporting one or more wire ropes above the ground, the retainer comprising:
an arm for embracing at least half of a circumference of the post whereby the retainer can be held on the post at a position along its length, and a tab extending from the arm for retaining the wire rope against the post, the tab being frangible or yieldable at a break point when subjected to a lateral force by the wire that exceeds a predetermined amount of force to permit a separation of the wire rope from the road safety barrier within a predetermined impact zone, wherein the post includes an outer surface, wherein the arm includes an upper edge, a lower edge and an annular surface configured to engage with the outer surface about at least half of the circumference of the post when the retainer is held on the post, the annular surface having a first width defined as a vertical distance between the upper edge and the lower edge when the retainer is held on the post, and wherein the tab is attached to the arm at the break point and includes an arcuate portion configured to engage the wire rope and a region attached to the arcuate portion, the region providing a planar surface configured to engage the outer surface, the planar surface having a second width being defined by a horizontal distance between a first edge and a second edge of the tab when the retainer is held on the post, and wherein the first width is less than the second width. |
