RC連層壁とダンパーとの接合部の繰返し加力実験低層部剛性を低下させた超高層RC建物の連層壁制振架構の開発その2

摘要

超高層RC建物に大きな減衰を付与するために，著者らはFig.lに示すような，低層部,性を低下させた上で，連層壁とダンパーを 低層部に集約配置する超高層制振架構の提案を行っている。前報 では連層壁脚部に用いる回転支承として積層ゴムを採用し，その回 転変形に対する耐久性について報告した。本報では，連層壁とダ ンパーとの接合部の繰返し加力実験の結果とともに，接合部のモデ ル化方法について報告する。%A new structural control system using a couple of shearwalls to amplify the damper deformation is proposed for vibration control of high-rise RC buildings. To demonstrate the effectiveness of the system, it is important to carefully design the damper connections between different materials (steel and concrete). Cyclic loading experiments using T-shape specimens were conducted for evaluating their stiffness and durability. The results clarified that it has sufficient stiffness and durability as a damper connection. Finite element analysis introducing crack lines were also conducted to simulate the experiments. Finally a simplified model of the connection was proposed.