In 2015 DLT were awarded the contract by Qinhuangdao Tianye Tolian Heavy Industry & Technology Co of China for detailed design of a bridge deck erection gantry (also known as a launching gantry or launching girder), and design check of a transporter and a pair of straddle carriers for the Sheikh Jaber Al Ahmed Al Sabah Causeway Project – Doha Link, Kuwait. The Doha Link is a 12.43 km sea crossing with twin parallel decks and is constructed from precast concrete deck beams supported on cast in-situ piers. The straddle carriers, transporter and gantry were all designed to handle precast concrete bridge deck beams weighing up to 1700 tonnes and with a span range of 30m to 60 m. The first span was erected in September 2016.
Video of the gantry operating sequence.
Launching gantry erecting the first short span.
2 x 850 tonne capacity straddle carriers and the transporter in the casting yard with the first span.