超高層ビルの中間乗換え階を利用した昇降機耐震性向上に関する基本的検討

抄録

Elevators are essential for means of traffic of vertical. In recent years, elevators to be installed in the building by the high-rise buildings are long stroke, thus elevator ropes are longer. Consequently, the natural period of elevator rope increases and gets closer to the natural period of buildings. As a result, the elevator rope hooked to the equipment of shaft wall when the elevator rope vibrates by an external force, such as an earthquake. Secondary damage such as containment of passenger and elevators service stop may occur. It has become a problem. For example, The Great East Japan Earthquake in 2011, 2015 cases of problem such as catch and damage of elevator ropes have been reported. We demand elevator that can be run after earthquake. Therefore, this study is aimed at construction of analysis techniques that can be unified evaluation and comparison of the elevator rope. In this report, we examine the effectiveness of the elevator using intermediate transfer floor. In the analysis, it was examined with the maximum displacement of case of the 3 dividing lifting stroke and case of the 2 dividing lifting stroke.