主催: 日本学術会議社会環境工学研究連絡委員会自然災害工学専門委員会
共催: 日本建築学会, 日本風工学会, 電気学会, 日本鋼構造協会, 土木学会, 日本気象学会
p. 000034
It is important to estimate the vibration characteristic of structures for the wind resistant design or the seismic design. Especially, the influence of the damping characteristic has on the vibration is large. In general, the Fourier analysis is used for the evaluation of the vibration characteristics. However, these methods are due to the statistical method based on the stationary stochastic process, and attention is required to apply to nonstationary phenomenon. Then, this paper proposes the technique for evaluating the work of external force, the increment of vibration energy and the dissipation of the structural energy from the generalization wind force and the building response by using the wavelet transform that is effective to handle nonstationary phenomenon. Moreover, this technique was applied to the field measurement result of using the square pillar elastic model, and the relation between the work of the wind force and the vibration energy was shown.