墩身根部混凝土水化热分析与裂缝控制

The analysis of concrete heat of hydration in the basis of pier and crack control

通过对某在建特大桥桥墩实心段的水化热跟踪测量,用有限元方法进行了温度场的模拟分析,说明了水化热的发生、分布以及散失规律,指出高强混凝土桥墩实心段在施工时必须设置内部降温措施,以防止温度裂缝的产生。

Through the heat of hydration tracking of the construction of a solid bridge piers, using the finite element method have carried out on the temperature fidd of simulation analysis, and so on point out the distribution and dissipation and the law and pointed out that high-strength concrete pier in the solid construction of the internal cooling measures must be set, in order to prevent the formation of cracks in the tempe rature.