Effect of opening geometry on full-scale internal pressure measurements

Humphreys, Mitchell, Ginger, John, and Henderson, David (2018) Effect of opening geometry on full-scale internal pressure measurements. In: [Presented at the 19th Australian Wind Engineering Society Workshop]. From: 19th Australasian Wind Engineering Society Workshop, 4-6 April 2018, Torquay, VIC, Australia.

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Abstract

An opening in a building envelope can cause large internal pressures, which are crucial to structural design of buildings. Analytical methods used to describe internal pressure fluctuations utilize ill-defined parameters, particularly loss and inertial coefficients, C_L and C_I. This paper focuses on the full-scale experimental setup used to record internal and external pressures under atmospheric wind flow to validate analytical methods. Typical resonance of internal pressure fluctuations was observed. Spectral matching was used to define loss and inertial coefficients for opening area to volume ratios, Φ_1 (=A^(3/2)/V), 28×10-6, 48×10-6 and 222×10-6 at relatively large Φ_5 (=λ_u/√A) values. Results indicate C_L increases with Φ_1, ranging between 8.5 and 30, where C_I ranged from 1.25 to 1.7.

Item ID: 58184
Item Type: Conference Item (Presentation)
Related URLs:
Funders: ARC Linkage Grant, Australian Steele Institute, Bushfire and Natural Hazards Cooperative Research Centre (BNHCRC)
Projects and Grants: ARC LP150101206
Date Deposited: 24 Nov 2020 02:23
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090506 Structural Engineering @ 80%
09 ENGINEERING > 0905 Civil Engineering > 090502 Construction Engineering @ 20%
SEO Codes: 86 MANUFACTURING > 8612 Fabricated Metal Products > 861201 Coated Metal and Metal-Coated Products @ 20%
86 MANUFACTURING > 8612 Fabricated Metal Products > 861206 Structural Metal Products @ 40%
86 MANUFACTURING > 8612 Fabricated Metal Products > 861205 Sheet Metal Products @ 40%
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