[Construction Example] Bridge Connecting Hearts <Rumoi Ohashi Superstructure Work>

By combining two formats, we achieve an economic structure! Let us introduce our construction examples.

The "Rumoi Ohashi" is a long bridge located at the terminal end of the Fukagawa Rumoi Expressway. The bridge features a mix of different types, including "narrow box girder bridge" and "plate girder bridge." The construction on the national road and land sections was carried out using a typical bent combined crane setup with 300t and 200t crawler cranes, while a special installation equipment, a 650t·m traveler crane, was used for the construction over the Rumoi River. Additionally, during the construction of the deck slab, a composite slab with a bottom steel plate that also functions as a formwork was erected using cranes, followed by the placement of rebar and concrete. 【Overview】 ■ Bridge length: 339m (span lengths of 46m + 94m + 55m + 55m + 58m + 29m) ■ Bridge type: 3-span continuous narrow box girder + 3-span continuous minor girder bridge (mixed bridge) ■ Factory fabrication weight: 1,022.1t ■ Factory painting area: 14,750m2 ■ Transportation weight: 1,195.5t *For more details, please refer to the PDF document or feel free to contact us.

Bridge Construction