Analysis of Wind Pressure Data on Components and Cladding of Low-Rise Buildings
Publication: ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
Volume 4, Issue 1
Abstract
This paper presents a methodology for analyzing wind pressure data on cladding and components of low-rise buildings. The aerodynamic force acting on a specified area is obtained by summing up pressure time series measured at that area’s pressure taps times their respective tributary areas. This operation is carried out for all sums of tributary areas that make up rectangles with aspect ratios not exceeding four. The peak of the resulting area-averaged time series is extrapolated to a realistic storm duration by the translation method. The envelope of peaks over all wind directions is compared with current specifications. Results for one low-rise building for one terrain condition indicate that these specifications can seriously underestimate pressures on gable roofs and walls. Comparison of the proposed methodology with an alternative method for assignment of tributary areas and area averaging is shown as well.
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Disclaimers
The policy of the National Institute of Standards and Technology is to use the International System of Units (SI) in its technical communications. In this paper, however, building codes and standards are referenced in both customary (as is the practice in U.S. construction industry) and SI units. Some commercial products are identified in this paper for traceability of results. Such identification does not imply recommendation or endorsement by the National Institute of Standards and Technology, nor does it imply that the products identified are necessarily the best available for the purpose.
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Published In
ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
Volume 4 • Issue 1 • March 2018
Copyright
©2017 American Society of Civil Engineers.
History
Received: May 31, 2016
Accepted: Jun 27, 2017
Published online: Nov 22, 2017
Published in print: Mar 1, 2018
Discussion open until: Apr 22, 2018
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