[Construction Case] Bridge Connected by Triangles: Installation of Reinforced Beams and Composite Decks

A steel arch bridge spanning the first-class river Shōgawa! Introducing a construction example from M.M. Bridge.

The "Toga Dam Shokawa Bridge Superstructure Construction" is being developed as a construction access road for the Toga Dam project, and it involves the construction of a bridge that crosses the first-class river Shokawa, starting from National Route 156. The arch base, bridge pier base, and each bridge pier are integrated with concrete in a rigid structure that can withstand significant earthquakes. A highly durable composite deck is used for the floor slab. Additionally, the stiffening girder and composite deck of the arch section were erected using a cable crane, while a crawler crane was used for other sections. 【Bridge Overview】 ■ Type: Steel through arch bridge ■ Bridge Length: 368.0m ■ Span Length: 27.2m + 28.0m + 205.0m (Arch 190.0m) + 36.0m + 36.0m + 34.2m ■ Road Width: 8.5m to 9.5m ■ Steel Weight: Approximately 1,725t *For more details, please refer to the PDF document or feel free to contact us.

Bridge Construction