メインロープの震害軽減のための建物・エレベーター連成系の基礎的研究

概要

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Due to past several earthquakes, damage of elevators, especially in rope, were reported. It is quite important to maintain the function of an elevator for rescue activity after a severe earthquake. This study clarifies the correlation between vibration of a main rope of an elevator and the characteristics of a building (stiffness and damping factor). Influence of the setting position of a driving machine is also investigated. A model of a thirty-story building with elevator system is analyzed on vibration modes and dynamics responses to several seismic ground motions. It is shown that two-elevator system, which sets a transfer floor in the middle height of a building, can reduce the response of a main rope, and that increased damping factor can also reduce the response.
2007-11-30