整体浇筑长大混凝土结构养护期间早期开裂问题探讨

Study of Initial Cracking Problems of Integrally-Cast Long and Large Concrete Structures During Curing Period

整体浇筑已成为长大结构重要的施工方法之一,但结构养护期间的早期开裂问题也日益凸现。在分析引起早期开裂影响因素的基础上,结合工程实例进行了详细的理论计算,对整体浇筑长大结构的施工及制定养护工艺具有一定的指导意义。

The integral casting of concrete becomes one of the important construction methods of long and large structures. However, the initial cracking of the structures during their curing period is a problem that is increasingly significant. In this paper, based on the analysis of the factors that may cause influences upon the cracking, and with reference to several projects, the detailed theoretic calculations in connection with the cracking are made, which may serve as certain guidance to the construction of the structures and to the formulation of their curing technology.