TEMPERATURE DISTRIBUTIONS AND STRESSES IN CONCRETE BRIDGES.

The paper gives an understanding and visual appreciation of the way temperature distributions within bridge decks form and change throughout the day. Any temperature distribution is considered as a superposition of a steady state average heat flow between top and bottom surfaces and an hourly changing variation near the surfaces. Both components are analyzed by classic theory of conductivity. The paper also demonstrates how the stresses induced by temperature in simply supported and continuous structures can be calculated from the temperature distributions.