抓住“约束”主线谈结构力学的学习

On learning of structural mechanics by constraint principle line

从几何构造分析、平面静定结构、超静定结构、虚功原理及结构矩阵位移法等方面入手,对结构力学学习中贯穿各种求解方法技巧的"约束"主线进行了探讨,指出抓住主线教学,对学生知识的掌握及融会贯通有较大的帮助。

From the various solving methods in the learning of the structural mechanics,the paper explores the constraint principle line from the geometric construction analysis,the plane determine structure,the statically determine structure,the principle of virtual work,and structural matrix displacement methods,and points out it is helpful for students to master the principle line.