RESPONSE CHARACTERISTICS EVALUATION OF ELASTIC SHEAR BEAM FOR PULSE WAVES

The objects of this paper is to comprehend the response characteristics of buildings and subsurface ground for pulse-like ground motions, and to clarify the generating mechanism of the distinctive responses. To achive the objects, we analyze the responses of uniform elastic shear beam for simple pulse waves (sinusoidal pulse and Ricker wavelet), with modal analysis and wave propagation theory. Especially, we focus on the time, the position and the amount of the maximum response, and on the contributing ratio of each natural mode for the maximum response. Additionally, we refer to damage concentration characteristics qualitatively.