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Active TLCGD control of plane asymmetric buildings under earthquake excitation

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Abstract

The sealed, tuned liquid column gas damper (TLCGD) with gas-spring effect extends the frequency range of application and efficiently increases the modal structural damping. Active tuned liquid column gas damper (ATLCGD) is developed for the vibration control of plane asymmetric buildings subjected to earthquake excitation, improving the performance of the passive control scheme. The active behaviour is obtained by adjusting the pressure at the end of the liquid column using a pressurised reservoir. The classical linear quadratic regulator (LQR) design is presented as a straightforward approach to optimal control. Numerical simulations indicate a significant vibration reduction of plane asymmetric buildings by active control within the strong motion of the dynamic response.

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Authors and Affiliations

  1. College of Architecture, North China University of Technology, 100144, Beijing, China

    Chuan Fu

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  1. Chuan Fu
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Correspondence to Chuan Fu.

Additional information

The project was supported by the Scientific Research Foundation at the North China University of Technology and the Projectsponsored by SPF for ROCS (SEM).

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Fu, C. Active TLCGD control of plane asymmetric buildings under earthquake excitation. Acta Mech Sin 27, 817–822 (2011). https://doi.org/10.1007/s10409-011-0504-2

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  • DOI: https://doi.org/10.1007/s10409-011-0504-2

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