Microtremor measurements and earthquake response measurements were conducted on two gymnasiums damaged by the 2011 Great East Japan Earthquake. This paper investigates the change in predominant frequency between pre- and post-repair observed in the measurements. The predominant frequency of the microtremor measurements are higher than the earthquake response results. It is presumed that this is due to the amplitude dependence of the response characteristic. The measurements are compared with num
Microtremor measurements and earthquake response measurements were conducted on two gymnasiums damaged by the 2011 Great East Japan Earthquake. This paper investigates the change in predominant frequency between pre- and post-repair observed in the measurements. The predominant frequency of the microtremor measurements are higher than the earthquake response results. It is presumed that this is due to the amplitude dependence of the response characteristic. The measurements are compared with num