MODAL PARTICIPATION BASED FLEXURAL STIFFNESS ESTIMATION METHOD FOR BUILDING STRUCTURE, AND STRUCTURAL HEALTH ASSESSMENT METHOD USING OF IT

摘要

The present invention relates to a modal contribution-considered bending rigidity estimation method for a building structure member and a safety assessment method. The modal contribution-considered bending rigidity estimation method for a building structure member comprises: (a) a step of generating a finite element analysis model of a structure; (b) a step of using a genetic algorithm to calculate solutions of the finite element analysis model; (c) a step of selecting a solution among a plurality of calculated solutions according to a modal contribution, and updating the finite element analysis model based on the selected final solution; and (d) a step of estimating bending rigidity of the structure by the updated finite element analysis model. Accordingly, the present invention provides a model updating method for minimizing an error of a dynamic property of the structure, a bending rigidity estimation method having high accuracy using the same, and a safety assessment method.