Wind loads on roof sheathing of houses

Gavanski, Eri; Kordi, Bahareh; Kopp, Gregory A.; Vickery, Peter J.

doi:10.1016/j.jweia.2012.12.011

Cited by 56 publications

(27 citation statements)

References 43 publications

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“…The statistical information for Cp e was calculated using the wind tunnel study of Gavanski et al (2013). Since simultaneous wind speeds were not measured in the experiments, the measured coefficients, which were referenced to a wind tunnel mean wind speed, were converted to an equivalent 3 s gust speed reference.…”

Section: Wind Loadsmentioning

confidence: 99%

“…The Gavanski et al (2013) wind tunnel study included various roof slopes (5/12, 6/12, 7/12, 9/12, 12/12), eave heights (1, 2, and 3 storeys), and terrain conditions (open, suburban) for gable-and hip-roofed houses that are both isolated and surrounded by the other houses of the same dimensions. For the global-roof-failure calculations, area-averaged pressure coefficients, Cp eA , for the three combined effective tributary areas were obtained using the point pressure time histories, with peak coefficients shown in Fig.…”

Section: Wind Loadsmentioning

confidence: 99%

“…7. For the sheathing-failure calculations, Cp eA was calculated for all the possible locations of the sheathing panels on the roof considered in Gavanski et al (2013).…”

Section: Wind Loadsmentioning

confidence: 99%

“…To examine the effect of neighbouring houses, the fragility analysis was performed using Cp e obtained from the isolated-house case (denoted as 'iso') as well as those obtained with surrounding houses in typical suburban patterns (denoted as 'neigh'). As noted above, four neighbouring configurations were examined; Gavanski et al (2013) provide the precise details. Examining the results for these neighbourhood configurations, it is clear that there is little in the way of shielding effects for the roof uplift failures.…”

Section: Effects Of Aerodynamic Parameters (Roof Shape and Neighbourimentioning

confidence: 99%

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Assessment of wind speeds based on damage observations from the Angus (Ontario) Tornado of 17 June 2014

et al. 2017

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A tornado occurred in Angus, Ontario, during the late afternoon hours of 17 June 2014. The authors conducted a damage investigation on the morning following the storm. The damage indicators support the classification of the tornado as an EF-2 on the Enhanced Fujita Scale, including the observation of several complete roof failures of recently-constructed, woodframe houses. Most of the damage to residential homes was contained along two streets, with the tornado appearing to have gone down the backyards between the two. In total, 101 houses were observed to have sustained some level of damage. The evidence suggests that the quality of construction likely affected the performance of failed roofs. A detailed fragility analysis was conducted to assess wind speeds associated with these failures of the roof-to-wall connections. An overturned and lofted box truck provided the opportunity to correlate this failure with adjacent, repetitive failures of roof sheathing, shingles, and garage doors.

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Section: Wind Loadsmentioning

confidence: 99%

Section: Wind Loadsmentioning

confidence: 99%

“…7. For the sheathing-failure calculations, Cp eA was calculated for all the possible locations of the sheathing panels on the roof considered in Gavanski et al (2013).…”

Section: Wind Loadsmentioning

confidence: 99%

Section: Effects Of Aerodynamic Parameters (Roof Shape and Neighbourimentioning

confidence: 99%

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Assessment of wind speeds based on damage observations from the Angus (Ontario) Tornado of 17 June 2014

et al. 2017

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“…Wind induced damage to low rise building roofs is common in coastal areas of USA which are prone to hurricanes with wind speeds exceeding 150 mph (Gavanski et al, 2013). The roof of a low rise building is highly vulnerable to wind damage due to the high suctions experienced by the roof during hurricanes (Eamon et al, 2007;Meloy et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Mitigation of Aerodynamic Uplift Loads Using Roof Integrated Wind Turbine Systems

Chowdhury

Moravej

Zisis

et al. 2019

Front. Built Environ.

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Coastal areas of the US are affected by extreme wind events, including hurricanes. Roofs are the most vulnerable building components as they are often damaged by high wind uplift forces acting on the edges and corners. This study investigates the application of a mitigation strategy, in the form of an Aerodynamics Mitigation and Power System (AMPS) (US Patent, Gan Chowdhury et al., Patent Number: US 9,951,752 B2, April 2018), designed to simultaneously reduce wind damage and provide power to buildings. The system consists of horizontal axis wind turbines, integrated to roof edges with or without gutters. Four sets of testing on a flat roof low rise building model (without gutters)-including a bare deck configuration (i.e. without AMPS) and three cases where the roof corner was fitted with AMPS-were conducted at the Wall of Wind Experimental Facility at Florida International University. In one of the configurations, the wind turbines were placed slightly above the roof edge, while in the other two configurations, the turbines were placed closer to the roof edge. Wind directions tested ranged from 0 • to 90 • (considering roof geometric symmetry). Estimation of areaaveraged mean and peak pressure coefficients were made for various locations on the roof for the three different configurations, and compared with the case of no mitigation. Results show that for wind directions tested, significant reduction in mean and peak pressure coefficients (reduced suction) were obtained in those cases where the wind turbines were placed closer to the roof edge as compared to the bare roof deck case. Flow visualization studies showed that the turbines helped to disrupt the conical vortices caused by cornering winds, thereby reducing the wind uplift forces on the roof. This study shows that the AMPS can be utilized to prevent wind-induced damage to the roof. Future research will include estimation of the: (1) potential wind energy production using the mitigation system under various wind conditions, (ii) effectiveness of AMPS in mitigating wind loading on other kinds of buildings (e.g., gable and hip roof buildings), and (iii) load transferred from the system to the roof.

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Analysis of mechanical stress and structural deformation on a solar photovoltaic panel through various wind loads

et al. 2021

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Wind loads on roof sheathing of houses

Cited by 56 publications

References 43 publications

Assessment of wind speeds based on damage observations from the Angus (Ontario) Tornado of 17 June 2014

Assessment of wind speeds based on damage observations from the Angus (Ontario) Tornado of 17 June 2014

Mitigation of Aerodynamic Uplift Loads Using Roof Integrated Wind Turbine Systems

Analysis of mechanical stress and structural deformation on a solar photovoltaic panel through various wind loads

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