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一、静定结构的位移计算静定结构的位移计算是以虚功原理为基础的,即:第一状态的外力在第二状态的相应位移上所做的虚功应等于第一状态的内力在第二状态相应的变形上所做的虚功。根据虚功原理,可以导出在荷载作用下静定结构位移计算的一般公式为:
1. Calculation of displacement of statically determinate structure The displacement calculation of the statically determinate structure is based on the principle of virtual work, that is, the virtual work performed by the external force of the first state on the corresponding displacement of the second state should be equal to the internal force of the first state. The virtual work done on the corresponding deformation of the second state. According to the principle of virtual work, the general formula for calculating the statically determinable structure displacement under load can be derived as: