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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2008, Vol. 9 Issue (3): 313-321    DOI: 10.1631/jzus.A071271
Civil & Mechanical Engineering     
Wind-induced internal pressure response for structure with single windward opening and background leakage
Shi-ce YU, Wen-juan LOU, Bing-nan SUN
College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310027, China; Department of Architecture Engineering, Ningbo College of Technology, Zhejiang University, Ningbo 315100, China
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Abstract  Theoretical analysis and wind tunnel tests were carried out to study wind-induced internal pressure response for the structure with single windward opening and background leakage. Its governing differential equation was derived by the Bernoulli equation in an unsteady-isentropic form. Numerical examples were provided to study the additive damping caused by background leakage in laminar and turbulent flow, and the influence of background leakage on fluctuating internal pressure response was quantized. A series of models for low-rise building with various opening ratios and background leakage were designed and wind tunnel tests were conducted. It is shown that the fluctuating internal pressure reduces when the background leakage are considered and that the effect of background leakage can be predicted accurately by the governing differential equation deduced in this paper.

Key words： Single windward opening      Internal pressure      Background leakage      Governing equation      Time-history analysis     
Received: 28 May 2007      Published: 30 December 2007
CLC:  TU311.3  
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Shi-ce YU
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Bing-nan SUN
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Shi-ce YU, Wen-juan LOU, Bing-nan SUN. Wind-induced internal pressure response for structure with single windward opening and background leakage. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(3): 313-321.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A071271     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2008/V9/I3/313

[1] Jun-jie LUO, Da-jian HAN. 3D wind-induced response analysis of a cable-membrane structure[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2009, 10(3): 337-344.
[2] Yu Shi-ce, Lou Wen-juan, Sun Bing-nan. Wind-induced internal pressure fluctuations of structure with single windward opening[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(3 ): 22-.