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《》 2005-01
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Review of wind-induced internal pressure and its effects on roof structures

LOU Wen-juan,LU Dan,SUN Bing-nan (Department of Civil Engineering,Zhejiang University,Hangzhou 310027,China)  
All previous wind disaster investigations have substantiated that higher wind-induced internal pressure in the case of sudden opening due to destroy of windows or doors during hurricane is one of the major cautions for collapse of fastigiums and roofs.Few of domestic studies on wind-induced internal pressure and its effects on roof structure are carried out.This paper reviews analytical and experimental investigations on the internal pressure properties and its effects on roof structures in recent years.The transient wind-induced internal pressures on rigid roofs are compared with that of flexible ones,and then the conditions and mechanism of the resonant vibration of flexible roofs in the case of sudden opening are discussed.Futhermore,the results from wind-tunnel tests and theoretic researches of a building with flat roof are briefly introduced.
【Fund】: 国家自然科学基金(59978044)
【CateGory Index】: TU312.1
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