A STEP AHEAD

This article discusses the factors affecting the design and construction of the Village Park footbridge in Ikusaka Village, Nagano Prefecture, Japan. This 105.53m long bridge is a prestressed concrete stress ribbon pedestrian bridge, built using precast concrete panels. The bridge was built in a 45m deep V-shaped valley with steep cliffs of at least 30 gradient on both sides. It was important to select a bridge design that would harmonise with these scenic surroundings, and seven different bridge types were examined according to aesthetic and economic criteria. A precast concrete stress ribbon design was chosen because its slenderness would harmonise easily with the surrounding landscape, and its construction costs would be limited. In this design, the bridge is a slender structure, whose prestressing cables are stretched between abutments and covered with thin concrete. The bridge has a single span of 94.23m, effective width 1.50m, and basic sag 2.70m; it can carry a pedestrian load up to 200kg/m. The substructure has a spread foundation with ground anchor on one side, and a pile foundation with ground anchor on the other. The article outlines the seven-step construction process, and discusses the bridge's wind stability. It details the sag design, control, determination, and measurement.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14605856
• Corporate Authors:

  Palladian Publications Limited

  15 South Street
  Farnham Surrey GU97QU,   United Kingdom 
• Authors:
  • Fukayama, K
  • SHINAGAWA, K
• Publication Date: 1999

Language

• English

Media Info

• Pagination: p. 46-9
• Serial:
  • CONCRETE ENGINEERING INTERNATIONAL
  • Volume: 3
  • Issue Number: 1
  • Publisher: THE CONCRETE SOCIETY
  • ISSN: 1460-5856

Subject/Index Terms

• TRT Terms: Abutments; Aesthetics; Anchorages; Bridges; Cables; Concrete; Construction; Costs; Design; Footbridges; Foundations; Precast concrete; Prestressing; Stability (Mechanics); Support piles
• Geographic Terms: Japan
• ITRD Terms: 3424: Abutment; 9107: Aesthetics; 3420: Anchorage; 3455: Bridge; 4530: Cable; 9098: Communication; 4755: Concrete; 3655: Construction; 224: Cost; 9011: Design (overall design); 9013: Development; 8763: Driver information; 3475: Footbridge; 3377: Foundation; 8053: Japan; 3399: Pile; 4792: Precast concrete; 4777: Prestressing; 8645: Software; 5930: Stability; 8755: Telematics
• Subject Areas: Bridges and other structures; Construction; Design; Finance;

Filing Info

• Accession Number: 00767090
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Aug 6 1999 12:00AM