• Transfer of 2nd tension force using docks between girders
• Ease of equipment operation by dock installation
• Tension work zone acquisition is possible and can shorten construction time by using the upper slab as a temporary support structure and through simultaneous work
• Reduction in the number of necessary strands due to the efficient transfer of the 2nd tension force in the continuation of the girder
• Complete or partial replacement is possible, and additional reinforcement is unnecessary when replacing the bottom plate