There have been formwork methods which make it possible to strip early before the strength of concrete reaches designed strength using structural calculations. Sometimes, finite element method (FEM) is used for the purpose. However, FEM requires times to get satisfied results with “try and error”. In this research, in order to reduce the analysis cost, positions of remained props are determined using finite element analysis and multi-objective optimization whose objective functions are number of remained props and a function of safety factor of the members. The early stripping of formwork props with FEM and optimization is applied into a building that has a complex plan. As a result, the number of remained props is significantly reduced. Furthermore, a measurement of axial forces acting on the props is made during the actual construction. The validity of the finite element analysis is proved by the measurement.
