Journal
APPLIED SCIENCES-BASEL
Volume 7, Issue 4, Pages -Publisher
MDPI AG
DOI: 10.3390/app7040323
Keywords
structural vibration control; multi-building systems; output-feedback control; seismic protection; passive control; pounding
Categories
Funding
- Spanish Ministry of Economy and Competitiveness [DPI2015-64170-R/FEDER]
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The design of vibration control systems for the seismic protection of closely adjacent buildings is a complex and challenging problem. In this paper, we consider distributed multi-actuation schemes that combine interbuilding linking elements and interstory actuation devices. Using an advanced static output-feedback H-alpha approach, active and passive vibration control systems are designed for a multi-story two-building structure equipped with a selected set of linked and unlinked actuation schemes. To validate the effectiveness of the obtained controllers, the corresponding frequency responses are investigated and a proper set of numerical simulations is conducted using the full scale North-South El Centro 1940 seismic record as ground acceleration disturbance. The observed results indicate that using combined interstory-interbuilding multi-actuation schemes is an effective means of mitigating the vibrational response of the individual buildings and, simultaneously, reducing the risk of interbuilding pounding. These results also point out that passive control systems with high-performance characteristics can be designed using damping elements.
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