沙牌碾压混凝土拱坝温度场仿真计算

Simulation analysis for temperature field of Shapai RCC arch dam

在条件并层、接缝单元、分区异步长等仿真分析理论的基础上,进一步研究了网格自动生成 与并层问题、单元形状问题、接力计算问题、合理时间步长问题、边界初始温度赋值问题及 提前蓄水时温度边界的处理问题等等；并以沙牌碾压混凝土拱坝施工过程温度场仿真分析工 程实例,证明其结论可供设计人员参考.

Based on the simulation algorithms on conditionally merging layers, jointed elem ents and different time steps for different zones, some of problems, such as ele ment meshes, merging layers automatically made, the shape of elements, relayed c alculation problem, reasonable time step and initial temperature for boundaries by impounding ahead of time are studied in this paper, and a practical explanati on is presented by simulating the constructing process and analyzing the tempera ture field for Shapai RCC arch dam during its life span, which could be used as one of the references for designer.