SIMPLIFIED METHOD FOR ESTIMATING THERMAL STRESSES IN COMPOSITE BRIDGES

The North American codes of practice do not specify a temperature distribution throughout the depth of composite bridge superstructures; furthermore, no temperature differentials are given for accurately assessing the thermal stresses induced in such bridges. A realistic temperature distribution and temperature differentials are proposed in this paper. Simple formulas are deduced for use in the design office for estimating the thermal stresses in the concrete deck slab as well as in the steel girders in simple- and continuous-span composite bridges. It is shown that thermal stresses can be quite significant and should be included in the design of bridges.

Media Info

  • Media Type: Print
  • Features: Appendices; Figures; References; Tables;
  • Pagination: pp 23-31
  • Monograph Title: Structural design of bridges
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00474216
  • Record Type: Publication
  • ISBN: 0309040663
  • Files: TRIS, TRB
  • Created Date: Oct 31 1987 12:00AM