Probability distributions of response of BHP house to wind action and model comparisons

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The response to wind action of the rectangular 151-m-high BHP House in Melbourne, Australia, has been measured with an accelerometer at the top floor level. The building oscillated almost entirely in the fundamental mode. Probability distributions of upcrossings showed that both cross-wind and along-wind motions (at high values of reduced frequency), although similar to a normally distributed process, generally gave 10-15% higher values than the value expected to be exceeded at the lower probability levels. The model distributions showed the same trend, and agreement between model and full scale was within 10%. Joint probability distributions of the cross-wind and along-wind motions of the full-scale and model BHP House were symmetrical, which tends to confirm the independence of these motions and, consequently, the independence of the excitation mechanisms, and were similar to a bivariate normal distribution.

Original languageEnglish
Pages (from-to)167-175
Number of pages9
JournalJournal of Wind Engineering and Industrial Aerodynamics
Issue numberC
Publication statusPublished - 1 Jan 1975

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