Location
South Korea
Sector
Transport
At our South Korean R&D facility, GS E&C developed the Advanced Railroad Trivet (ART) Girder – an innovative 45-metre pretensioned PSC girder designed specifically for high-speed rail applications. Traditionally, prestressed concrete girders for railway bridges have been limited to spans of 30-35 metres, constrained by technical, logistical and cost challenges. By extending the viable span to 45 metres, the number of bridge piers required is reduced, minimising environmental impact and enhancing construction efficiency.
The ART Girder achieves a 70% cost reduction compared to conventional PSC box-type girders, while maintaining performance and safety standards. It has been awarded three patents and recognised by the Korean Society of Railway as one of the top 10 technologies of 2018. Applications to date include the Korean Railway Comprehensive Test Track (2017) and the Southern Inland High-Speed Railway, slated for completion in 2025.
This innovation reflects our commitment to future-ready infrastructure – combining structural performance, cost-efficiency, and environmental sensitivity. By pushing the boundaries of span length and constructability, the ART Girder exemplifies how engineering research can create tangible, scalable solutions that support a more connected and sustainable future.
