摘要
分析了应用MATLAB中PDE工具箱求解火灾下钢筋混凝土构件热传导问题的方法和步骤。采用有限元法求解梁截面导热偏微分方程,应用PDE工具箱得到数值解。算例表明,程序计算结果和试验吻合较好,充分展现了MATLAB强大的计算和图形功能,说明了用这种方法进行混凝土构件截面温度场的数值计算的高效性、便利性,并为进一步开展火灾下钢筋混凝土构件的力学性能分析提供了依据。
The method and steps for finding the heat conduction solution of reinforced concrete members with the PDE toolbox in MATLAB are described. The partial differential equation （PDE） for heat conduction was solved with the finite element method and the PDE toolbox was adopted to obtain the numerical simulation. Examples show that the calculation data agrees reasonably well with experimental data and MATLAB has the strong ability in computation function and graph representation. This method is demonstrated to be convenient and highly efficient in calculating temperature distributions of the reinforced concrete members in fire. This research work is a base for the further study on the fire resistance analysis of reinforced concrete members.
出处
《结构工程师》
2008年第4期48-51,共4页
Structural Engineers
