Suspension Bridge Tied Back Using Bar Anchors

Context

Gubong Mountain in the southern province of Jeollabuk-do in South Korea is a popular destination that draws an ever increasing number of tourists. Some of the hiking trails leading to the different peaks of the Gubong Massif traverse very steep and dangerous sections. It is why the province’s department of administration decided to increase the safety of their tourists. DYWIDAG is part of the construction of one of the pedestrian suspension bridges that was built between two peaks of this route.

Solution

To tie back the support cables at the abutments of the bridge, DYWIDAG supplied 24 double corrosion protected, 32mm and 40mm Ø, 10m long DYWIDAG THREADBAR Anchors.

In addition to the 2 supporting cables, the suspension bridge is secured by 2 additional wind cables that were tied back in the foundations underneath the bridge in the load bearing rock. The two wind cables, which run parallel to the bridge deck underneath the suspension bridge, are braced multiple times upwards toward the bridge deck. Using this method, the suspension bridge is effectively stabilized against possible vibrations due to high wind speeds.

Because of the difficult accessibility of the construction site located at a height of 1,000m, both the equipment needed for tensioning the DYWIDAG THREADBAR Anchors and the anchors themselves had to be transported to the jobsite individually by helicopter.