混凝土结构非稳态温度场的新解法  

New method for calculation of transient temperature field in concrete structure

作　　者：梅甫良[1] 曾德顺[2] 

机构地区：[1]华东石油大学,山东东营257061 [2]同济大学,上海200092

出　　处：《水利学报》2002年第9期74-76,81,共4页Journal of Hydraulic Engineering

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.

关 键 词：混凝土结构 非稳态温度场 有限元 状态方程 精细积分法 

分 类 号：TV33[水利工程—水工结构工程]