Design of the Dubai Metro Light Rail Viaducts - Superstructure

The Dubai Metro Light Rail scheme is a flagship project in the United Arab Emirates which will be the longest fully automated rail system in the world when completed, and is currently one of the largest civil engineering projects under construction. The first phase of the rail system is due to be opened in September 2009 and will include over 42km of precast concrete viaduct. The majority of the viaduct utilizes a slender precast segmental post-tensioned concrete U-shaped trough form for its construction, with a width of 10m, a total depth of 2.04m and span lengths up to 44m. The slender deck slab and profiled edge beams results in both an economic and aesthetically pleasing structure which has been rapidly constructed while being suitable for the harsh environment of the Middle-East. The wide U-shape of the deck is unusual for concrete bridges and presented a number of challenges, including complex 3D and dynamic behavior. This paper discusses the design and construction of the viaduct superstructure. It presents the structural arrangement and design of the precast segmental Ushaped trough deck, describing the challenges encountered in the detailed design phase of the project.

  • Corporate Authors:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    National Concrete Bridge Council

    Portland Cement Association, 5420 Old Orchard Road
    Skokie, IL  United States  60077-1083

    Missouri Department of Transportation

    105 West Capitol Avenue
    Jefferson City, MO  United States  65102

    American Concrete Institute (ACI)

    38800 Country Club Drive
    Farmington Hills, MI  United States  48331
  • Authors:
    • Smith, David A
    • Hewson, Nigel R
  • Conference:
  • Publication Date: 2008


  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; Maps; Photos; References;
  • Pagination: 10p
  • Monograph Title: HPC: Safe, Affordable, and Efficient

Subject/Index Terms

Filing Info

  • Accession Number: 01105275
  • Record Type: Publication
  • Created Date: Jul 28 2008 11:18AM