Analysis and design of arch structures for the Oman Southern Expressway

This paper describes the analysis and design of a number of large precast buried arch structures for The Oman Southern Expressway, which is currently under construction. The arches are of 15 and 20 metres span, under embankments of up to 35 metres height. The fill height is substantially greater than for any previous buried arch structures of this size. A number of design challenges were encountered on this project: Analysis and design of the arch profile to minimise bending moments and shear forces in the structure under very high soil loads; Design and detailing of skewed structures for asymmetric loads; Design of raft foundations for very high imposed loads; Analysis and design of double arch structures. The paper describes the analysis procedures employed on this project, and the design features required to support the high imposed loads. These included the use of a funicular arch profile and a raft cross section of varying depth. The paper compares the design actions in the actual structure with alternative designs, and makes recommendations for the design of arch structures under very high fills.

Language

  • English

Media Info

  • Pagination: 10p
  • Monograph Title: Innovation in engineered wood product bridge components

Subject/Index Terms

Filing Info

  • Accession Number: 01384481
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 22 2012 4:36PM