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Extreme values of bridge temperatures for design purposes
TRRL LR 744 A method of estimating minimum and maximum effective bridge temperatures based on a geographical distribution of minimum and maximum shade temperatures over the UK is derived and compared with measurements. Where measured bridge temperatures are inadequate (i.e. for extremely low or extremely high shade temperatures), theoretical studies of bridge temperatures are used. The form …
Temperature differences in bridges: basis of design requirements
It is shown how the magnitude of temperature differences in both concrete bridge decks and the concrete deck slabs of composite bridge decks under various depths of surfacing may be determined by using a simple modification to the method of calculation of bridge temperatures described in TRRL Report LR 561. Empirical methods are used to estimate the magnitude of temperature differences in the s…
Temperatures in bridges during the hot summer of 1976
The period 23 June to 8 July 1976 to be one of the hottest experienced in this country within the last 250 years. During this period temperatures were being measured in a solid concrete bridge, a composite bridge, in the surfacing of a concrete box bridge, in elevated concrete slabs and on steel plates. The main text of the Report presents the variations in surface emperatures and/or effective …
