Evaluation of Wind-Induced Internal Pressure In Low-Rise Buildings: A Multi Scale Experimental and Numerical Approach

Tecle, Amanuel

doi:10.25148/etd.fi11120905

Cited by 1 publication

(2 citation statements)

References 69 publications

(58 reference statements)

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“…Similar works were also conducted by Guha et al (2013). Tecle et al (2013) used solenoid valves to simulate the abrupt openings on doors and windows and obtained lower peak transient internal pressures than subsequent steady-state peak pressure at varying wind directions and opening sizes. Duan et al (2012) simulated the abrupt opening process of doors and windows and studied the effects of opening ratio and background porosity factor on peak transient internal pressure.…”

Section: Introductionmentioning

confidence: 67%

“…Extensive studies have been done about response characteristic of internal pressure induced by wall dominant opening and different nonlinear governing equations applied to predicted internal pressure (Chen et al, 2012; Guha et al, 2012; Holmes and Ginger, 2012; Tecle, 2011; Oh et al, 2007; Quan et al, 2012a, 2012b). The internal pressure response characteristic mainly depend on external excitation around the opening, and other influence factors including opening size ratio, opening geometries and location, background leakage, roof flexibility, and building volume, which is verified by many researchers (Guha et al, 2011; Kopp et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Steady-state and transient wind characteristics of low-rise building roofs with openings in vulnerable areas

Dai

Yuan

Song

et al. 2020

Advances in Structural Engineering

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A strong wind would cause roof openings on a low-rise building and bring further structural damage. Previous related studies focused on different shapes of openings on flat roofs. Little study has been done on the sloped roofs with openings in vulnerable roof areas. In this study, wind tunnel tests were carried out to investigate the steady-state and transient internal pressure characteristics due to opening at the vulnerable roof areas of a low-rise building. The tests considered both steady-state and transient openings of roof. The experimental results indicated that the steady-state internal pressure distribution tends to be uniform and that the internal pressure induced by leeward roof ridge opening is obviously lower than that induced by the windward one. The fluctuation effect around the orifice area is apparent with the skewed wind direction and the combined effect of internal and external pressures on the unopened roof side is significantly smaller than that on the opened side. Current design provision of China for internal pressure evaluation is found to be unconservative. The transient overshoot is closely related to the opening location in the vulnerable roof area and is more pronounced when the opening is on the leeward side. Among the internal pressure coefficients commonly adopted in design, the extreme net wind pressure coefficient is most important, which is affected most at the orifice near eaves, roof corners and tails, and leeward roof ridge.

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Section: Introductionmentioning

confidence: 67%