This study investigates dynamic similitude for reduced-scale seismic experiments on seismically isolated buildings. By applying Buckingham’s π theorem, mass and stiffness were scaled with the cube of the geometric factor to relax strict similarity conditions. The isolation system was represented by a Kelvin–Voigt model, avoiding difficulties in nonlinear member selection. Validation through single- and multi-degree-of-freedom analyses, including a 15-story reinforced concrete building, confirmed close agreement with prototype responses. These findings demonstrate the applicability of the proposed framework, with future work addressing diverse ground motions and nonlinear behaviors.
TSUNEZAWA et al. (Thu,) studied this question.