断層近傍の地震動に対する中低層建物の基本的応答性状

概要

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In the 1995 Hyogoken-Nanbu earthquake, buildings were severely damaged by immense earthquake input energy, which was brought within only a few seconds by distinctive velocity pulses, called killer-pulses. So we made various earthquake response analyses focusing on the distinctive seismic pulses included in near-field earthquake ground motions. From analysis results, we considered the relationship of a period and an acceleration amplitude of the seismic pulse with building response, such as story shear distribution, ductility factor and so on, and explained how the seismic pulse influenced on mid-story collapse. We also showed the effect of seismic damper for near-field earthquake was less than that for far-field earthquake through the example of optimum calculation for seismic damper quantity.
2004-12-30