Abstract
A pipe cooling system is one of the major methods that are used to control thermal stress of concrete structures. In this study, three-dimensional finite element method to consider the heat balance between concrete and water in cooling pipes was used to estimate the effect of controlling thermal cracking by the pipe cooling system stationed three-dimensionally and suitably for the pail of a pier in the cable stayed bridge. Therefore, this theoretical method showed applicability for estimating the effect of control of thermal cracking.