THERMAL CALCULATIONS FOR BRIDGE DESIGN

A straightforward method is shown for calculating thermal stresses in bridges. Unsteady temperature distributions are obtained from numerical solutions of the one-dimensional unsteady heat equation, and comparison with experiment seems to validate the simplifying assumption that horizontal heat movements are small enough to be ignored. Stresses are calculated by solving a two-dimensional thermoelastic problem, and a design example shows that stresses calculated in this way can be significantly larger than stresses calculated by ignoring the coupling effect between longitudinal and lateral stresses. /Author/

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Hunt, B
  • Cooke, N
• Publication Date: 1975-9

Media Info

• Pagination: p. 1763-81
• Serial:
  • Journal of the Structural Division
  • Volume: 101
  • Issue Number: ST9
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Bridge design; Bridges; Calculation; Equations; Numerical analysis; Stresses; Structural design; Temperature; Thermal stresses
• Uncontrolled Terms: Computation; Lateral stress; Temperature distribution
• Old TRIS Terms: Longitudinal stresses
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00125507
• Record Type: Publication
• Report/Paper Numbers: ASCE #11545 Proceeding
• Files: TRIS
• Created Date: Dec 16 1975 12:00AM