Developed research to carry out prediction damage from measuring Microtremor

Japan has many experiences of building damage caused by earthquakes and it has managed to recover from such disaster each time. There is a system called Temporary Risk Evaluation, which determines the immediate availability by investigating the damage situation of a building in a short period of time after an earthquake, and plays a major role in the prevention of secondary disasters. However, it has some problems, such as staff shortages and variations in judgments. In this study, we aim to construct an immediate and accurate Temporary Risk Evaluation system using measuring microtremor. Although the prediction of the degree of damage to a building using a measuring microtremor is a pre-existing study, the prediction does not take into account even plasticization at the time of an earthquake. Therefore, we will make a more accurate prediction considering the time of earthquake by calculating the ground response analysis and building equivalent period. The measuring microtremor was wide-ranging from Hokkaido in the north and Kagoshima in the south, and also in Taiwan as well as japan. As a determination method, to set the index by the interlayer deformation angle, to determine the resonance range of the ground and the building considered until the time of the earthquake. In order to verify that the building damage level prediction proposed in this study is correct, we select one building from the constant tremor measurement and look at the integrity of the analysis value and the predicted value.