Abstract: The static plane product moment method of calculating the displacement of the girder is another method which is similar to the graphical method of multiplication in the books under the condition of a unit force acting on the structure for determined distortion.In case the load is complicated and heavy,the adoption of the static plane product moment method is simple and intuitive.Without plotting the bending moment graph,we are able to calculate the various related displacements and the deformed clastic curves of the determined girder.

摘要： 计算梁的位移的面积矩法,是在单位力确定结构变形这一方法的条件下,与一般书上的图乘法并列且具有相似的另一方法。它在某些特定的条件下,如荷载复杂而较多时,运用起来简便、直观,而不需要作出梁的弯矩图,就可以计算梁上各点位移以及确定梁的变形弹性曲线。