Fluctuating wind loads across gable-end buildings with planar and curved roofs

Ginger, J.D. (2004) Fluctuating wind loads across gable-end buildings with planar and curved roofs. Wind & Structures, 7 (6). pp. 359-372.

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Abstract

Wind tunnel model studies were carried out to determine the wind load distribution on tributary areas near the gable-end of large, low-rise buildings with high pitch planar and curved roof shapes. Background pressure fluctuations on each tributary area are described by a series of uncorrelated modes given by the eigenvectors of the force covariance matrix. Analysis of eigenvalues shows that the dominant first mode contributes around 40% to the fluctuating pressures, and the eigenvector mode-shape generally follows the mean pressure distribution. The first mode contributes significantly to the fluctuating load effect, when its influence line is similar to the mode-shape. For such cases, the effective static pressure distribution closely follows the mean pressure distribution on the tributary area, and the quasi-static method would provide a good estimate of peak load effects.

Item ID: 7262
Item Type: Article (Refereed Research - C1)
Keywords: effective static load; eigenvalue; eigenvector mode shape; gable-end building; load effect; wind load
ISSN: 1598-6225
Date Deposited: 25 Mar 2010 04:17
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090502 Construction Engineering @ 40%
09 ENGINEERING > 0905 Civil Engineering > 090506 Structural Engineering @ 30%
09 ENGINEERING > 0905 Civil Engineering > 090599 Civil Engineering not elsewhere classified @ 30%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870203 Industrial Construction Design @ 40%
87 CONSTRUCTION > 8704 Construction Processes > 870403 Industrial Construction Processes @ 30%
87 CONSTRUCTION > 8702 Construction Design > 870202 Commercial Construction Design @ 30%
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