내진구조해석을 위한 지반가속도의 특성에 관한 연구 ( A Study of the Characteristics of the ground Acceleration for the Seismic Analysis )

The characteristics of earthquake ground motion such as the duration of strong motion, frequency contents, and the max. ground acceleration influence the response of structures. However, the max. ground motion is usually considered alone in obtaining the response spectrum. Since the effect of relatively long duration and large frequency contents is considerable, especially for moderate and weak earthquakes, it is desirable to consider all factors affecting the response of structures. In this study twenty earthquake data are investigated to evaluate the influence of characteristics of ground motions.