Construction and a tension element comprising a cable and one or more strakes

摘要

The invention provides a construction comprising a structural element and at least one cable (101) arranged in tension to carry at least a part of the weight of the structural element. The cable defines an outer surface (102) onto which at least one strake (104) forms a protrusion for reducing rain and wind induced vibrations. The strake has a height being a distance from a strake root part connected to the outer surface of the cable and a strake end part terminating the strake outwards away from the cable, and the strake has a width being transverse to the height, the width decreasing in the direction from the strake root part towards the strake end part. The height is less than 5 percent of the diameter of the cable. Furthermore, the strake comprises a first strake surface portion facing away from the cable, which first strake surface portion is concave or straight.

主权项

1. A construction comprising a structural element and at least one cable arranged in tension to carry at least a part of the weight of the structural element, the cable defining an outer surface onto which at least one strake forms a protrusion for reducing rain and wind induced vibrations, wherein the strake has a height being a distance from a strake root part connected to the outer surface of the cable and a strake end part terminating the strake outwards away from the cable, the strake having a width being transverse to the height, the width decreasing in the direction from the strake root part towards the strake end part, wherein the height is less than 5 percent of the diameter of the cable, and wherein the strake comprises a first strake surface portion facing away from the cable, the first strake surface portion being concave or straight, and wherein the first strake surface portion extends from the strake root part to the strake end part to provide a ramp for rivulets flowing longitudinally along the outer surface of the cable.