同調D.M.システムを有する鉄骨系フレームの塑性率制御法

抄録

This paper presents a procedure named ductility factor control method for moment-resisting frames with tuned dynamic mass systems. The objective is to estimate yield moments and other parameters satisfying target performances such as ductility factors for structural elements and viscous damping ratios for its system. This is a new version of the original paper presented by Ishimaru in 1975, which consists of a pseudo modal analysis making use of the combination between time history waves of nonlinear SDOF systems as modal coordinates and their participation vectors regarding to structural elements. The numerical examples show that the method is able to facilitate its implementation in practical design with high accuracy.