INELASTIC ANALYSIS OF CONTINUOUS COMPOSITE HIGHWAY BRIDGES. ULTIMATE LOAD CAPACITY OF HIGHWAY BRIDGES

The purpose of this study is to determine the plastic distribution factor of continuous, composite bridges for use with the Load Factor Design Method. An analytical method was developed for the elastic and inelastic behavior of such systems. The resulting equations were solved by a computer program. Using the computer program, 48 two-span and three-span composite bridges were analyzed. The plastic distribution factors were then obtained. Existing data for simple span composite bridges was also analyzed. The following equation for the plastic distribution factor, (DF sub p), was found to give excellent correlation with the numberical results. (DF sub p) = 2.0 (Number of traffic lanes)/(number of girders).

• Supplemental Notes:
  • Sponsored in part by Maryland State Highway Administration, Brooklandville. Bureau of Research.
• Corporate Authors:

  University of Maryland, College Park

  Department of Civil and Environmental Engineering
  College Park, MD  United States  20742

  Maryland Department of Transportation

  State Highway Administration, 707 N Calvert Street
  Baltimore, MD  United States  21202

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Fu, C C
  • Colville, J
  • Heins, C P
• Publication Date: 1976-6

Media Info

• Pagination: 149 p.

Subject/Index Terms

• TRT Terms: Breaking loads; Bridge design; Bridges; Composite structures; Computer programming; Computer programs; Continuous structures; Dynamic loads; Dynamic structural analysis; Elasticity (Mechanics); Girder bridges; Highway bridges; Highway design; I beams; Load factor; Loads; Mathematical analysis; Plasticity; Structural design
• Old TRIS Terms: Plastic state
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00166438
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: AW-120 Intrm Rpt.
• Files: NTIS, TRIS, USDOT, STATEDOT
• Created Date: Sep 28 1978 12:00AM