The Displacement of the Statically Indeterminate Structure Calculate Method and It′s Application

This paper introduces the displacement of the statically indeterminate structure to calculate method,once the superfluous unknown forces of the structure have calculated,then regard it as the exteral loads.The calculating displacement emploices simplify static and stability structural system,yet use the unit load method calculate the displacement,it is convenience and save time.Single degree of freedom systems about the vibration period of the statically indeterminate structure calculation use this method.