关于超静定结构位移计算公式的推导

Discussion about deriving the displacement calculation formula of a statically indeterminate structure

力法是计算超静定结构的一种基本而有效的方法 .本文运用力法的一般思路来分析超静定结构的位移计算问题 ,同时说明“虚功原理”的重要性 .

The force method is a basic and effective means to calculate statically indeterminate structures. The displacement calculation of a statically indeterminate structure is analyzed in the general way of the Force Method, meanwhile the significance of the principle of virtual work is illustrated.