Efficiency of active systems in controlling base-isolated buildings subjected to near-fault earthquakes

摘要

It has been pointed out that base-isolated structures may be vulnerable during near-fault earthquakes andnspecial considerations are required in the design of isolated structures in near-fault areas. This paper investigatesnthe effi ciency of active control systems in reducing the responses of base-isolated structures withnvarious isolation parameters. The design of hybrid control systems using base isolation and active systemsnare optimized in order to accomplish different design purposes. Also for some cases, equivalent passivencontrol systems are introduced which result in comparable responses with respect to hybrid control systems.nCopyright © 2009 John Wiley & Sons, Ltd.