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/

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