Seismic performance evaluation method and program for wooden buildings by microtremor measurement

摘要

An object of the present invention is to provide a method for evaluating the seismic performance of a building that can be implemented in a space-saving, low-noise, low-cost and in a short time, which complements or replaces a conventional method for evaluating seismic performance of a building. Hfi / Vfi obtained by dividing a Fourier amplitude Hfi corresponding to the peak period Ti of the horizontal component of the fine movement of the building measured by a fine movement measuring sensor by a Fourier amplitude Vfi corresponding to Ti of the vertical component of the fine movement. Hfi / Vfi × Ti / To value obtained by multiplying the Hfi / Vfi ratio by the Ti / To ratio, which is the ratio of Ti to the natural period To of the building determined by the notification formula of the wooden building By calculating the Hfi / Vfi × Ti / To value according to the measured height, weight or shape of the building, the ratio between the retained horizontal strength Qui and the required retained horizontal strength Quini of each layer of the building And a step of calculating a seismic performance score Qui / Qui value which is a seismic performance evaluation method. [Selection] Figure 2