Integral bridge with full height abutment requirement and design

Many level crossings have been removed in Victoria. Typically, they are single span or two span bridges over existing rail tracks and without batter in front of abutment to allow rail maintenance access. AS5100-2017 & BTN010 requires integral bridge to avoid any joints. AS5100.1-2017 requires minimum 800mm thick for abutment wall including RSS wall abutment for rail collision load. 800mm thick wall of 3.6m and 2.0m above rail height is to be provided when abutment face is less than 4m from the rail centre line to abutment face and more than 4m respectively. MTM standards requires 800mm thick wall when abutment is located within 10m from near or future track, but it allowed to use 900mm diameter piles at 2.0m spacing with reinforced concrete infill pile walls subject to MTM approval. However, infill wall to be designed for the collision load and the reinforced soil strap (RSS) wall system should protect abutment piles from collision load. DoT Section 682 also requires abutment piles to be independent of RSS wall to avoid any load transfer to abutment piles from RSS walls. RSS wall will require 800mm thick for almost half the height and piled foundation for rail collision load. Abutment piles independent of RSS walls will need to be large enough. In order to satisfy all requirements, full height abutment walls have been used to support bridge structure as well as to retain soil for an economical design and to reduce rail occupation over existing rail tracks.

• Record URL:
  • https://austroads.com.au/publications/bridges/abc2022-000-22
• Record URL:
  • https://arrbknowledge.com
• Authors:
  • Anaton, J
• Conference:
  • Austroads Bridge Conference, 11th, 2022, Adelaide, South Australia, Australia
• Publication Date: 2022-11

Media Info

• Pagination: 15p
• Monograph Title: 11th Austroads Bridge Conference, Adelaide, 15th-18th November 2022

Subject/Index Terms

• TRT Terms: Abutments; Bridge construction; Bridge design; Bridges; Concrete; Concrete bridges; Construction; Retaining walls; Standardization; Standards; Support piles
• Geographic Terms: Australia; Victoria
• ATRI Terms: Abutment; Australian standard; Bridge; Bridge construction; Bridge design; Concrete bridge; Pile; Retaining wall
• ITRD Terms: 9011: Design (overall design); 3399: Pile
• Subject Areas: Bridges and other structures; Construction; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01901757
• Record Type: Publication
• Source Agency: ARRB Group Limited
• Files: ITRD, ATRI
• Created Date: Dec 7 2023 2:55PM