VIBRATION MODES COUPLING EFFECT IN THE WIND-INDUCED RESPONSE OF A LONG SPAN ROOF

Sun Binyan; Zhang Xuwei; Chen Jiaguang

doi:10.13204/j.gyjz201208027

Volume 42 Issue 8

Dec. 2014

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Sun Binyan, Zhang Xuwei, Chen Jiaguang. VIBRATION MODES COUPLING EFFECT IN THE WIND-INDUCED RESPONSE OF A LONG SPAN ROOF[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(8): 139-143. doi: 10.13204/j.gyjz201208027

Citation:

Sun Binyan, Zhang Xuwei, Chen Jiaguang. VIBRATION MODES COUPLING EFFECT IN THE WIND-INDUCED RESPONSE OF A LONG SPAN ROOF[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(8): 139-143. doi: 10.13204/j.gyjz201208027

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VIBRATION MODES COUPLING EFFECT IN THE WIND-INDUCED RESPONSE OF A LONG SPAN ROOF

doi: 10.13204/j.gyjz201208027

1.
1. Civil Engineering Department,Jiangsu University,Zhenjiang 212013,China;
2.
2. Bureau of Housing and Urban-Rural Construction,Zhenjiang 210096,China;
3.
3. Happy City Architectural Design Co.Ltd,Guangzhou 510000,China.

Received Date: 2012-02-20
Publish Date: 2012-08-20

Abstract

Abstract

A method of calculating energy contribution coefficient was deduced．Taking the model wind tunnel testresults of the ribbon-like long span roof of the exhibition hall and stadium for a sports convention and exhibition centeras the basis, dominant modes were identified with energy contribution method, and the modes response energy wascalculated．The coupling coefficient between background displacement response and resonant displacement responsewas presented in this paper．The stadium calculation model was analyzed．The results show that the couplingcoefficient numerical range for the ribbon-like long span roof was much larger than that of a single-layer sphericalshell．Error range would be large if coupling effect was ignored when vibration modes were selected in calculatingribbon-like structure response with energy contribution method, and modal compensation was needed．
- long span roof,
- wind tunnel test,
- modes coupling coefficient,
- resonant response,
- background response

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References(10)

References

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