可変摩擦ダンパーによる鋼構造超高層建築の地震時全体曲げ変形の制御効果に関する解析的研究

抄録

The authors have developed a passive variable friction damper (VFD) which produces a decreased frictional force when its displacement exceeds a predetermined value. The purpose of this study is to evaluate the response flexural deformation control effects of steel super high-rise buildings using VFDs subjected to strong earthquakes. In the present paper, dynamic response analyses and static pushover analyses were conducted using thirty-story frame structure models with VFDs or conventional friction dampers (FDs). The result indicated that VFDs can mitigate flexural deformations compared with FDs in whole building and damper-installed span by 4-7% and 8-32%, respectively.