Design criteria on concrete bridges in front of the environmental thermal effects
DOI:
https://doi.org/10.3989/ic.1987.v38.i388.1647Abstract
The present work is based on the problem of environmental thermal effects on concrete bridges. In this study, an analytical model is developed to determine the time-dependent temperature distributions and the self-equilibrated longitudinal and transversal stresses distributions within the cross section of concrete bridges. Parametric studies are carried out in order to find the effects of all parameters governing the heat transfer and conduction problem. Moreover, a general methodology in order to obtain design stresses distributions and design thermal loads is presented. Such methodology is applied to the case of concrete bridges in Spain. Data bases are the results of parametric studies and the environmental information presented in several reports of National Institute of Meteorology.
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