This study attempts to apply Performance Curve method to design dampers for high-rise buildings in order to reduce the response under long-period ground motions; and to analyze the effects of response control of the high-rise buildings using damper devices.
In order to analyze the dynamic response, the target high-rise building is a 37-story building located in Tokyo; and five different earthquakes, namely BCJ-L2, El Centro 50 kine, Kobe, Osaka and Nagoya are used. Likewise, the target high-rise building is modeled as multi-degree of freedom (MDOF) systems, and to perform its dynamic response using damper devices, such as steel, oil and viscous dampers, the software called MDOF-OS was modified by the writer based on the software coded by Dr. Taiki Saito. Its algorithm is mainly based on Operator Splitting (OS) method because of its good accuracy and stability for large time integration steps. In this analysis, the target high-rise building without dampers reaches the maximum response under Nagoya earthquake because of being the strongest long-period ground motion.
Finally, steel and oil dampers are designed using a Performance Curve method developed by Prof. Kasai to be added into the target high-rise building in order to reach a good seismic performance under Nagoya earthquake. And a comparison among these dampers is carried out in order to analyze the effect of response control.