“Tokyo Urban Ring Road Route No. 2″ was planned for the purpose of mitigating traffic congestion in the parallel Harumi Avenue, smoothing of traffic in the area, and improving local disaster prevention method. Tsukiji Bridge, planned for this ring road, has the concept of “a bridge that citizen are still proud of after 100 years” and has a consistent design from bridge structure to detail, We were responsible for detailed design for the Superstructure and Substructure. An arch style was adopted as a beautiful bridge that is mechanically stable and has a long life service for the wide design of 6 lanes plus sidewalks on both sides.
A characteristic silhouette arch bridge which the arch rib is inclined at about 14 degrees on the sidewalk side was selected, and the design, which does not require lateral struts in the upper part of the roadway, has an open feeling as you cross over. With this design, we aimed to provide harmony with the surrounding landscape. The sidewalks are separated from the roadway by a gentle curve, and near the center, you can enjoy a fine view of the river.
Unlike Eitai Bridge, which is a massive arch bridge spanning the Sumida River, and Kachidoki Bridge, which has cross connecting material recalling portal bracing, Tsukiji Bridge has no lateral splice materials, and with its arch rib inclined 14 degrees horizontally, it is an unprecedented new structure in Japan adopting a twin arch design. We believe that it would be an effective proposal in the case for applying an arch type to a wide road bridge.
On May 8, 2014, the center span large block of Tsukiji Bridge (arch section), part of the “Tokyo City Planning Ring Road Route No. 2,” was put in place.
Sumida River is about 220m wide, has a central shipping route of about 100 m, and a large amount of water traffic. For this condition, a large block erection method was chosen to shorten the closure period of the route. The parts were transported by sea and the building yard nearest to the harbor was used.
In September 30 2014, the name “Tsukiji Bridge” was decided.
| Crosslinking position | From Kachidoki 5-chome, Chuo-ku to Tsukiji 5-chome, Chuo-ku |
|---|---|
| Principal | Tokyo Metropolitan Government |
| Department in charge | Tokyo Metropolitan Government 5th Construction Office (Bureau of Construction) |
| Bridge Length | 245ｍ =（50ｍ＋145ｍ＋50ｍ） |
| Span Length | 49.85ｍ＋145.00m＋49.85m |
| Total width | 32.30 m to 48.00 m |
| Width configuration | 4.00 m (bicycle pedestrian section) + 2 × 10.25 m (road section) + 4.00 m (bicycle pedestrian section) |
| Structural type |
Superstructure: Steel 3 span continuous half-through arch bridge Substructure: A1 abutment: Reverse T type Bridge pier: Wall type A2 abutment: Wall type Foundations: A1 abutment: Steel pipe pile Bridge pier: Steel shell caisson A2 abutment: on site piles |
