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http://dx.doi.org/10.14346/JKOSOS.2022.37.3.45

Parametric Study of Asymmetric Base-Isolation Coupling Control System for Vibration Control of Adjacent Twin Buildings  

Kim, David (School of Social Safety Engineering, Hankyong National University)
Park, Wonsuk (Department of Civil Engineering, Mokpo National University)
Ok, Seung-Yong (School of Social Safety Engineering & Research Center for Safety and Health, Hankyong National University)
Publication Information
Journal of the Korean Society of Safety / v.37, no.3, 2022 , pp. 45-51 More about this Journal
Abstract
This paper focuses on a recently proposed asymmetric base-isolation coupling control system (ABiCS) for the vibration control of adjacent twin buildings. The ABiCS consists of inter-story diagonal dampers, a connecting damper between the two buildings, and a seismic isolation device at the base floor of one building. To investigate the control characteristics of ABiCS, a parametric study was performed by numerically simulating the 20-story twin buildings. In the parametric study, the control capacities of the inter-story diagonal dampers, connecting damper, and seismic isolation device were considered as varying parameters. The parametric study results indicate that the connecting damper between the two buildings reduces the responses of both buildings only at optimal or near-optimal capacity. In addition, adjusting the stiffness of the base isolation is found to be the most effective method for improving seismic performance and achieving cost-effectiveness. Accordingly, we presented a scenario-based performance improvement approach in which reducing the stiffness of the base isolation device could be an effective technique to improve the seismic performance of both buildings. However, note that checking the maximum allowable displacement of the base isolation device is essential.
Keywords
adjacent twin buildings; vibration control; asymmetric base-isolation coupling control system; seismic isolation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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