大型震動台実験に基づくS造中層建物の振動特性の分析

Natural period and damping ratio are important values in seismic design. Recently, many of the findings for these values have been obtained from earthquake observation records. However, the observation records of buildings are affected by the soil–structure interaction. Therefore, only the characteristics of the building structure are unclear. This study focused on the structural vibration characteristics by using the records of large shaking table tests. Steel specimens subjected to strong input motion were studied, and the experimental data were analyzed using the ARX model. Moreover, the effects of the experienced largest deformation on the vibration characteristics were investigated.