MODIFICATION OF SLAB DESIGN STANDARDS FOR EFFECTS OF SKEW. FINAL REPORT

Parameter studies were made of fifty-four, reinforced concrete, multi-span, slab bridges with a finite element program called GENDEK-5 in order to assess the effects of skew on support reactions and internal bending moments. Parameters include three roadway widths, 35.5, 43.5 and 63.5 ft (10.8, 13.3 and 19.4 m); four skew angels 0, 20, 40 and 60 degrees; and three span configurations, four spans at L-L-L-3/4L, where L could be 20, 30 or 40 ft (6.10, 9.15 or 12.20 m). Plotted values of reduction factors (with respect to parameters for orthogonal supports) are presented for positive and negative moments and abutment reactions. Effects of skew on the latter differ greatly from the effects on torsionally stiffer box girders. Notes are presented pertinent to Caltrans implementation of a very sophisticated, reinforced or prestressed concrete slab program. A supplementary report will be published when implementation of this research effort has been completed. (Author)

• Corporate Authors:

  California Department of Transportation

  Division of Project Developement, P.O. Box 1499
  Sacramento, CA  United States  95807

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Mahmoudzadeh, M
  • Davis, R E
  • Semans, F M
• Publication Date: 1984-10

Media Info

• Features: Appendices; Figures; Tables;
• Pagination: v.p.

Subject/Index Terms

• TRT Terms: Bending moments; Design standards; Reinforced concrete; Reinforced concrete bridges; Skew bridges; Slabs; Structural supports; Width
• Uncontrolled Terms: Modifications
• Old TRIS Terms: Supports
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00396351
• Record Type: Publication
• Report/Paper Numbers: FHWA-CA-SD-84-03
• Contract Numbers: F83SD21
• Files: TRIS, USDOT, STATEDOT
• Created Date: Jan 31 1987 12:00AM