Wind Direction and Structural Reliability
Publication: Journal of Structural Engineering
Volume 109, Issue 4
Abstract
The effect of wind direction on structural reliability is studied as a problem of a vector wind force process outcrossing a structural resistance boundary which may be direction‐dependent. When the structural orientation is not known or the winds have no directionality but the resistance is highly direction‐dependent, results from simple parametric studies indicate that the upcrossing (or failure) rate is approximately proportional to the effective “direction window” width and there is a significant reduction in response level (or risk of failure) compared with the results based on a “worst direction” assumption. However, a lower bound exists to the outcrossing rate as the window vanishes. When the structural orientation is known and for location where winds show strong directionality the outcrossing rate and failure probability could be very sensitive to the structural orientation. Implications of the findings in the formulation of code procedures are mentioned.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Belyaev, Y. K., “On the Number of Exits Across the Boundary of a Region by a Vector Stochastic Process,” Theory of Probability Application,” Vol. 13, 1968, pp. 320–324.
2.
Davenport, A. G., “The Prediction of Risk Under Wind Loading,” Proceedings, 2nd International Conference on Structural Safety and Reliability, Munich, West Germany, Sept., 1977, pp. 511–538.
3.
Davenport, A. G., “The Dependence of Wind Loads on Meteorlogical Parameters,” Proceedings, International Conference on Wind Effects on Buildings and Structures, Ottawa, Canada, Sept., 1967, pp. 19–82.
4.
Ravindra, M. K., Cornell, C. A., and Galambos, T. V., “Wind and Snow Load Factors for Use in LRFD,” Journal of the Structural Division, ASCE, Vol. 104, No. ST9, Sept., 1978, pp. 1443–1457.
5.
Rojiani, K., and Wen, Y. K., “Reliability of Steel Buildings Under Winds,” Journal of the Structural Division, ASCE, Vol. 107, No. ST1, Jan., 1981, pp. 203–221.
6.
Simiu, E., and Filliben, J. J., “Wind Direction Effect on Cladding and Structural Loads,” Journal of Engineering Structures, Vol. 3, July, 1981, pp. 181–186.
7.
Veneziano, D., Grigoriu, M., and Cornell, C. A., “Vector‐Process Models for System Reliability,” Journal of the Engineering Mechanics Division, ASCE, Vol. 103, No. EM3, June, 1977, pp. 441–460.
Information & Authors
Information
Published In
Copyright
Copyright © 1983 ASCE.
History
Published online: Apr 1, 1983
Published in print: Apr 1983
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.