A STUDY ON VIBRATION CHARACTERISTICS OF STEEL MEDIUM-RISE BUILDINGS BASED ON LARGE SHAKING TABLE TESTS

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