ABSTRACT
The force method used to analyze a statically indeterminate structure subjected to effects other than applied loads. The force method involves five steps. First of all, the degree of statical indeterminacy is determined. A number of releases equal to the degree of indeterminacy is introduced, in which each release being made by the removal of an external or an internal force. Application of the given loads on the released structure will produce displacements that are inconsistent with the actual structure, such as a rotation or a translation at a support where this displacement must be zero. In the next step these inconsistencies or "errors" in the released structure are determined. The values of the redundant forces necessary to eliminate the errors in the displacements are determined. Hence, the author finds the forces on the original indeterminate structure: they are the sum of the correction forces redundants and forces on the released structure.
