Research Article
Sep 1974
Wind Spectra and Dynamic Alongwind Response
Author: Emil SimiuAuthor Affiliations
Publication: Journal of the Structural Division
Volume 100, Issue 9
Abstract
Current methods for determining dynamic alongwind response are based on the assumption that turbulence spectra are independent of height. The adequacy of this assumption is assessed in the light of recent theoretical and experimental results of boundary layer meteorology. Expressions for the alongwind response, including deflections and accelerations, are proposed. It is shown that, in the case of tall, flexible, lightly damped structures (i.e., of structures for which the resonant response, as defined by Davenport and Vickery, is high), expressions of the spectrum which reflect its dependence upon height yield lower values of the alongwind fluctuating response than the expression currently used in building codes and standards in which this dependence is ignored. Results of numerical calculations show that the values of the fluctuating deflections and of the gust factors obtained if the latter expression is used may be higher by as much as 50 and 25%, respectively, than those obtained if the variation of spectra with height is taken into account.
Get full access to this article
View all available purchase options and get full access to this article.
Information & Authors
Information
Published In
Journal of the Structural Division
Volume 100 • Issue 9 • September 1974
Pages: 1897 - 1910
Copyright
© 1974 American Society of Civil Engineers.
History
Published in print: Sep 1974
Published online: Feb 1, 2021
Permissions
Request permissions for this article.
Authors
Affiliations
Emil Simiu
Struct. Res. Engr., Ctr. for Bldg. Tech., Natl. Bureau of Standards, Washington, DC
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.
Cited by
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
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.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
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.