摘要
本文提出了一种计算混凝土结构非稳态温度场的新方法 ,首先对空间域进行了有限元离散并用状态方程表示了有限元控制方程 ,然后利用精细积分公式导出了当前时间步结点温度向量与前一时间步结点温度向量之间关系的递推公式。算例结果表明本方法不但可行 。
A new method for calculation of transient temperature field in concrete structure is developed.The spatial domain is meshed by finite element method and state equation is used to express the control equation.Then,the iterative formula for calculating the temperature at the node is deduced by using fine integral method.The calculation result of an example shows that the method is applicable and its accuracy is better than that of center difference method.
出处
《水利学报》
EI
CSCD
北大核心
2002年第9期74-76,81,共4页
Journal of Hydraulic Engineering
