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Received: 1999-03-26

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Bio-Design and Manufacturing  2018 Vol.1 No.4 P.421-426

10.1631/jzus.2000.0421


WIND-INDUCED STOCHASTIC RESPONSE OF CONTROLLED TALL BUILDINGS BY COMPLEX-MODE ANALYSIS


Author(s):  SUN Bing-nan, CHEN Shui-fu

Affiliation(s):  Dept. fo Civil Engineering, Zhejiang Univerity, Hangzhou, 310027, China

Corresponding email(s): 

Key Words:  tall building, wind-induced vibration, structual control, complex-mode analysis, state-space mode


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SUN Bing-nan, CHEN Shui-fu. WIND-INDUCED STOCHASTIC RESPONSE OF CONTROLLED TALL BUILDINGS BY COMPLEX-MODE ANALYSIS[J]. Journal of Zhejiang University Science D, 2018, 1(4): 421-426.

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Abstract: 
This paper deals with the along-wind dynamic response of tall buildings passively controlled by Cross-Tensioned Spring Damper (CTSD) mechanisms. In order to estimate the dynamic response more accurately and efficiently, the building and its CTSD controllers were considered as a coupled non-classical damping system and a new stochastic response analysis method, complex-modal state-space method, was proposed based on the combination of complex modes of the structural system rather than on the real-modal decomposition as usual. As numerical examples, the displacement response of a 2-degree-of freedom system to white-nosie input is first considered and the validity and accuracy of the proposed method are demonstrated through comparison with the exact results. The wind-induced dynamic responses of a tall building controlled by two CTSD mechanisms are the analyzed. The calculation results showed that the proposed method is much more appropriate and accurate than the conventional real-modal decomposition method in the analysis of dynamic responses of passively controlled tall buildings.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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