碾压混凝土坝施工期坝体温度及应力仿真研究

Study on temperature-stress simulation of RCC dam during construction period

碾压混凝土坝,根据混凝土的热学参数及边界条件随时间的变化规律以及混凝土浇筑过程等条件,应用瞬态热传导三维有限元分析方法,对针对坝体施工期的温度场和徐变应力进行了动态仿真计算,得出了坝体在施工期温度和应力的时空分布规律。

According to the thermodynamic parameters and the boundary conditions varied in pace with time, the dyna mic simulation on temperature field and creep stresses of RCC dam during construction period are computed with 3-D FEM of transient thermal conduction. The distribution regularities of temperature and stresses of RCC dam are obtained.