Wind and Structures

Techno-Press (테크노프레스)
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Fluctuating wind loads across gable-end buildings with planar and curved roofs

  • Ginger, J.D. (Cyclone Testing Station, School of Engineering, James Cook University)
  • Received : 2003.07.11
  • Accepted : 2004.08.02
  • Published : 2004.12.25
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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.

Keywords

References

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Cited by

  1. Design Wind Loads on Gable-Ended Low-Rise Buildings with Moderate and Steep Roof Slopes vol.6, pp.2, 2004, https://doi.org/10.1080/13287982.2006.11464947
  2. Dynamic characteristics and wind-induced vibration coefficients of purlin-sheet roofs vol.22, pp.5, 2016, https://doi.org/10.12989/scs.2016.22.5.1039