DESIGN OF CONCRETE BRIDGES FOR TEMPERATURE GRADIENTS

This paper reviews the state of the art of ambient thermal loading of prestressed and reinforced concrete bridges. Discussion is generally confined to the behavior under vertical temperature gradients induced by solar radiation input to the deck surface. Methods for predicting design temperature gradients from local meteorological conditions are discussed, and a general analytical method for predicting the vertical distribution of thermally induced stress is developed. Results from laboratory and in situ experiments confirm the validity of the analytical approach. The influence of cracking on the thermal response and the significance of thermal loading to ultimate capacity are discussed.

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  • Accession Number: 00180089
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Oct 12 1978 12:00AM