Temperature Effect Analysis and Control Measure of Super Mass Concrete Construction Based on Finite Element Method
Based on the numerical thermal conduction theory and finite element analysis,the finite element model and method for analyzing the temperature effect of super mass concrete construction are constructed by taking the concrete floor engineering of underground structure of Chongqingdong Railway Station as an example.Based on the finite element model for analyzing the temperature effect of super mass concrete construction,the influence law of concrete water-cement ratio,ambient temperature and cooling water pipe layout on the central temperature of concrete is discussed,which provides a basis for formulat-ing economical,reasonable and feasible temperature crack control scheme.The feasibility of the application of finite element analysis method in the selective preference of temperature crack control scheme for super mass concrete construction is verified by comparing it with the measured temperature data in the construction process.It provides an objective basis for the selective preference of mass con-crete pouring construction control scheme,which is con-ducive to reducing the generation of temperature cracks in mass concrete,improving the impermeability of concrete,and ensuring the safety and durability of the structure.
temperature crack of super mass concretefi-nite element analysistemperature fieldcrack prevention measure
NETL
NSTL
万方数据
