Effect of Non-linearity of Connecting Dampers on Vibration Control of Connected Building Structures

Frontiers in Built Environment

Tsuji, Masaaki¹  Takewaki, Izuru¹  Fujita, Kohei¹  Kasagi, Masatoshi¹ 

[1] Department of Architecture and Architectural Engineering, Graduate School of Engineering, Kyoto University, Japan

关键词: Building connection;    Passive damper;    nonlinearity;    structural control;    high-damping rubber damper;    Oil damper;    relief mechanism;    Smart structure;   

DOI  :  10.3389/fbuil.2015.00025

学科分类：建筑学

来源: Frontiers

【 摘 要 】

The connection of two building structures with dampers is one of effective vibration control systems. In this vibration control system, both buildings have to possess different vibration properties in order to provide a higher vibration reduction performance. In addition to such condition of different vibration properties of both buildings, the connecting dampers also play an important role in the vibration control mechanism. In this paper, the effect of nonlinearity of connecting dampers on the vibration control of connected building structures is investigated in detail. A high-damping rubber damper and an oil damper with and without relief mechanism are treated. It is shown that, while the high-damping rubber damper is effective in a rather small deformation level, the linear oil damper is effective in a relatively large deformation level. It is further shown that, while the oil dampers reduce the response in the same phase as the case without dampers, the high-damping rubber dampers change the phase. The merit is that the high-damping rubber can reduce the damper deformation and keep the sufficient space between both buildings. This can mitigate the risk of building pounding.

【 授权许可】

CC BY