Modified Yield Line Theory for Full-Depth Precast Concrete Bridge Deck Overhang Panels

Full-depth precast deck slab cantilevers also referred to as full-depth precast concrete bridge deck overhang panels are becoming increasingly popular in concrete bridge deck construction. To date, no simple theory is able to estimate the overhang capacity of full-depth concrete bridge deck slabs accurately. Observations suggest that interaction between flexure and shear is likely to occur as neither alone provides an accurate estimate of the load-carrying capacity. Therefore, modified yield line theory is presented in this paper, which accounts for the development length of the mild steel reinforcing to reach yield strength. Failure of the full-depth panels is influenced by the presence of the partial-depth transverse panel-to-panel seam. When applying a load on the edge of the seam, the loaded panel fails under flexure while the seam fails in shear. Through the use of the modified yield line theory coupled with a panel-to-panel shear interaction, analytical predictions are accurate within 1–6% of experimental results for critical cases.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
• Authors:
  • Mander, Thomas J
  • Mander, John B
  • Head, Monique Hite
• Publication Date: 2011-1

Language

• English

Media Info

• Media Type: Print
• Features: Bibliography; Figures; Tables;
• Pagination: pp 12-20
• Serial:
  • Journal of Bridge Engineering
  • Volume: 16
  • Issue Number: 01
  • Publisher: American Society of Civil Engineers
  • ISSN: 1084-0702
  • Serial URL: http://ojps.aip.org/beo

Subject/Index Terms

• TRT Terms: Bearing capacity; Bridge construction; Bridge decks; Concrete bridges; Flexure; Seams; Yield line method
• Uncontrolled Terms: Overhangs; Shear (Mechanics)
• Subject Areas: Bridges and other structures; Highways; Materials; I32: Concrete; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01328109
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 21 2011 1:03PM