Wind Deflection Probability Analysis

by Benjamin J. Biller, (M.ASCE), HNTB Corp, Kansas Corp, United States,

Document Type: Proceeding Paper

Part of: Structures Congress XII


A statistical analysis is performed which analyses the probability of various magnitudes of deflections of a cable-stayed roof occurring due to wind uplift. Extensive wind analyses were done leading up to the statistical analysis, including a wind tunnel test of a scale model of the structure and a three-dimensional space frame analysis. The probability analysis utilizes Lotus 1-2-3 with the Risk add-in program (Palisade, 1991). A model is formulated which stimulates 10,000 iterations of wind occurrences. The purpose of the analysis is to demonstrate quantitatively that the probability of relatively large deflections occurring are extremely small.

Subject Headings: Cables | Wind engineering | Probability | Displacement (mechanics) | Three-dimensional analysis | Structural analysis | Space frames | Roofs

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