Abstract
Under wind action, the property of non-Gaussian wind pressure distribution is very important for determination of peak factor, simulation of fluctuating wind pressure and design of cladding and components. Since the distribution of non-Gaussian zone is highly irregular based on the statistical method, any effort on giving regular non-Gaussian zone regions cant reflect the real non-Gaussian property. Considering the fact that non-Gaussian property was induced by flow separation and generally the movement of vortex showed the character of time averaged steady, taking a typical low-rise building as the example, the distribution of limiting streamlines and the theory of flow separation was applied in the research. Results show that the distribution of limiting streamlines has a close relationship with the intensity of non-Gaussian property and can be used as an intuitionistic tool in the research of identification and mechanism for non-Gaussian properties.
Publisher
Trans Tech Publications, Ltd.
Reference15 articles.
1. J.A. Peterka, J.E. Cermak: Wind pressures on buildings-probability densities. Journal of Structual Division, ASCE Vol. 101(6)(1975), pp.1255-1267.
2. T. Stathopoulos: PDF of wind pressures on low-rise buildings. Journal of Structual Division, ASCE Vol. 106(5)(1980), pp.973-990.
3. J.D. Holmes: Wind action on glass and Brown's integral. Engineering Structures, Vol. 7(4)(1985), pp.226-230.
4. Y.J. Tian, N. Yang, Y. Yang: Analysis on wind-induced damage of long-span roof structures. Journal of Wuhan University of Technology, Vol. 34(6)(2012), pp.109-113. (in Chinese).
5. J. Li, X. Wang: An exponential model for fast simulation of multivariate non-Gaussian processes with application to structural wind engineering. Probabilistic Engineering Mechanics, Vol. 30(2012), pp.37-47.