Daelim Completes Installation of Cables for Dandeung Bridge Connecting Gogunsan Archipelago
DATE 2014.02.23
VIEW 3320
Daelim Completes Installation of Cables
for Dandeung Bridge Connecting Gogunsan Archipelago
for Dandeung Bridge Connecting Gogunsan Archipelago
Daelim completed on February 23, 2014 the installation of major cables for Dandeung Bridge in section 2 of the Gogunsan Archipelago Connecting Road construction project. The section 2 construction site is a project involving the installation of marine bridges (three marine bridges) with total length of 1,292m connecting Shinsi Island and Munyeo Island in Okdo-myeon, Gunsan-si, Jeonbuk.Of those bridges, Dandeung Bridge is the first 1-tower, 1-span, earth-anchored suspension bridge in Korea. With major span length of 400m, the bridge boasts of the longest span length among the current 1-tower suspension bridges in the world. The tower is a ferroconcrete one with height of 105m and is in good harmony with the surrounding landscape since its shape resembles a sailboat’s sail.
The air spinning construction method applied to Lee Sun-Shin Bridge and Suspension Bridge between Jeokgeum and Yeongnam was employed for the cable construction. Using the same principle as ski lift in a ski field, the air spinning construction method features a wheel-shaped pulley plying between anchorages and twisting thin wires with cable. A total of 1,079 tons of high-strength steel wires with diameter of 5.53mm were inputted into the installation.
