Numerical Analysis on Natural Periods of Hilly Area
2020 Volume 52 Article ID: 52-4
Details
2020 Volume 52 Article ID: 52-4
It is well known that the alluvial has its natural period in relation to its depth, and makes the earthquake motion large. On the other hand, the hill also has its natural period in relation to its height. In this paper, the natural period of a hill is calculated in consideration of its sectional shape. As a result, the height and the sectional shape of a hill influence its natural period. But the natural period is proportional to the height of a hill. There are many predominant periods under the 1st natural period of 3D model in the calculated response spectra. And there is no tendency among response spectrum at each point on the 3D model.
