Research Article
Nov 1971
Response of Triangular Prisms in Turbulent Wind
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VIEW THE REPLYAuthors: Peter W. Chen, M.ASCE, Alan G. Davenport, AM.ASCE, Nicholas Isyumov, and Leslie E. Robertson, F.ASCEAuthor Affiliations
Publication: Journal of the Structural Division
Volume 97, Issue 11
Abstract
Aeroelastic responses of 1/400 scale model with five masses were measured in a boundary layer wind tunnel to simulate the responses of twin triangular buildings in the turbulent wind at Century City, Los Angeles. Mean and RMS values of base shears, base bending moments, and base torque were measured for various wind speeds and wind directions. Frequency distributions and power spectra were obtained for the response parameters. No adverse effects were observed as a result of the close juxtaposition of two triangular prisms. Dynamic responses in bending and in torsion were predominantly in the fundamental modes of vibration. Base torsional moments were small in comparison with the base bending moments. Average peak values of the bending moments were 3.7 times the RMS values above the mean for time periods equivalent to 1 hr in full scale. The aeroelastic results were combined with the climatic data of Los Angeles to obtain an envelope of the maximum base bending moments with a probability of being exceeded in any year of 1 in 50.
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Published In
Journal of the Structural Division
Volume 97 • Issue 11 • November 1971
Pages: 2679 - 2690
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Nov 1971
Published online: Feb 1, 2021
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Affiliations
Peter W. Chen, M.ASCE
Director of Research, Skilling, Helle, Christiansen, Robertson, New York, N.Y.
Alan G. Davenport, AM.ASCE
Director, The Boundary Layer Wind Tunne l Lab., The Univ. of Western Ontario, London, Canada
Nicholas Isyumov
Asst, Director, The Boundary Layer Wind Tunnel Lab., The Univ. of Western Ontario, London, Canada
Leslie E. Robertson, F.ASCE
Partner, Skilling, Helle, Christiansen, Robertson, New York, N.Y.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.