Automation of Bridge Construction by Precast Span Method in Korea High Speed Railway Project

Large portion of Kyung-bu high-speed railway in Korea was constructed in the form of bridges or tunnels. Most of bridges were designed to be prestressed continuous concrete box girder type. The precast span method was selected for the construction of prestressed concrete box girder bridges for its merits of good quality, fast construction speed, low construction cost and safety. Since it was the first attempt to apply the precast span method to a continuous bridge for high speed railway, many design and construction details were studied and implemented in the construction.