Hyundai E&C sets out to gain the upper hand in building super long-span bridges, which are recently attracting worldwide attention, by developing an original technology.
Korea’s primary builder succeeded in developing core equipment designed to construct prefabricated parallel wire strands (PPWS), the first of its kinds in South Korea, to build a super long-span suspension bridge with a two-kilometer-long span between towers.
On February 22, the company held a public demonstration of the state-of-the-art technology at the Ulsan Bridge construction site. Ulsan Bridge being constructed by Hyundai E&C since 2010 is a 8.348-kilometer- long suspension bridge linking Dong-gu with Nam-gu in Ulsan Metropolitan City and the world’s third longest single-span suspension bridge.
In the ceremony attended by officials from Hyundai E&C, Super Long-Span Bridge R&D Center, Korea Infrastructure Safety Corporation, Korea Institute of Construction Technology, Ulsan Metropolitan City, University of Ulsan and Pusan National University, Hyundai E&C made use of the newly developed equipment to install the PPWS cable.
The core equipment for installation of PPWS cables can be applicable to the construction of a super long-span suspension bridge with a central span of two kilometers between two pylons, and a driving winch has a pulling power of up to 37 tons. The company established an operation control room to monitor the whole construction procedures and control all equipment in an integrated way, and a wireless video monitoring equipment to track the construction process along the cable installation route, which led to maximizing the efficiency and safety of the project.