AMBIENT THERMAL RESPONSE OF CONCRETE BRIDGES

Research results (brief summaries of the projects are provided) are collated into this report which provides sufficient information for designing bridge structures for the effects of thermal loading without the necessity for recourse to the original documents. Transient heat-flow theory is developed in a form suitable for the prediction of temperatures induced in bridges by ambient heating, solar radiation and heat of hydration. Equations are developed for prediction of stresses and deformations from specified thermal conditions, and predictions are compared with experimental results. Critical ambient thermal conditions and factors affecting thermal response are investigated and design thermal gradients are developed. In-situ measurements of thermal response of bridges are described and the results are compared with predictions based on already described theory. Finally, the influence of cracking on the thermal response of conventionally reinforced and prestressed bridges is investigated, and the significance of thermal load on the ultimate capacity of bridges is discussed.

  • Availability:
  • Supplemental Notes:
    • Volume 2, Bridge Seminar 1978.
  • Corporate Authors:

    National Roads Board, New Zealand

    P.O. Box 12-041
    Wellington,   New Zealand 
  • Authors:
    • Priestley, MJN
    • Buckle, I G
  • Publication Date: 1979

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00311084
  • Record Type: Publication
  • Report/Paper Numbers: RRU Bulletin 42
  • Files: TRIS, ATRI
  • Created Date: Jun 9 1980 12:00AM