Study on Non-linearity of Rocking Vibration for Structures

Abstract

It is important to understand characteristics of rocking vibration related to overturning small structures inside buildings. In order to understand the overturning of the structure due to rocking vibration by numerical analysis, numerical analysis considering energy loss in a collision and duration of collision is performed by using a quadrilateral hysteresis loop characteristic in which repulsive force is a function of speed as a hysteresis loop characteristic. As a result, since the maximum rotation angle and response waveform at the non-linear state of structure due to rocking almost agreed, indicating the effectiveness of numerical analysis in this research.