Fragility and climate impact assessment of contemporary housing roof sheeting failure due to extreme wind

Stewart, Mark G.; Ginger, John; Henderson, David; Ryan, Paraic C.

doi:10.1016/j.engstruct.2018.05.125

Cited by 35 publications

(23 citation statements)

References 34 publications

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“…The risk from extreme winds is expressed as (Stewart et al 2018) ( ) = ∑ Pr( ) Pr( | ) Pr ( | ) ( 1)where Pr(H) is the probability of a wind hazard. The wind hazard is typically represented by the wind speed, which can be further extended to include other environmental hazard of interest (e.g.…”

Section: Risk Assessment Frameworkmentioning

confidence: 99%

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Wind and Rain Losses for Metal-clad Contemporary Houses Subjected to Non-cyclonic Windstorms

Qin¹

2020

Preprint

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Severe windstorms cause millions in losses annually for housing in Southeast Australia that has more than half of Australia’s population. The risk assessment for housing in these non-cyclonic regions is the key to assessing the cost-effectiveness of relevant wind mitigation measures to reduce the economic losses. This study develops a probabilistic risk assessment framework to evaluate the wind and rain losses for Australian contemporary houses subjected to non-cyclonic windstorms, which integrates the hazard modelling for extreme wind and associated rainfall, reliability-based wind damage assessment, rainwater intrusion evaluation and economic loss modelling. The risk analysis was conducted for metal-clad contemporary houses in Brisbane and Melbourne. It was found that damage to building interior and contents 18 caused by rainwater intrusion associated with extreme winds is the major contributor to the annual expected economic losses, and houses in Brisbane are generally subjected to higher losses than houses in Melbourne.

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Section: Risk Assessment Frameworkmentioning

confidence: 99%

“…Losses and risks to housing during severe windstorms often accrue to damage to the building envelope (Henderson & Ginger 2008;Stewart et al 2018). The breaches of roof cladding and windows/doors may subsequently induce significant losses to building interior and contents due to rainwater intrusion (e.g.…”

Section: Introductionmentioning

confidence: 99%

Wind and Rain Losses for Metal-clad Contemporary Houses Subjected to Non-cyclonic Windstorms

Qin¹

2020

Preprint

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“…The loss estimation uses an assembly-based approach (e.g. [11,12,25,38]). The representative contemporary house is divided into components/subassemblies based on specific building details as shown in Table 4.…”

Section: Risk Analysis Loss Estimationmentioning

confidence: 99%

“…where E annual (t) is the annual risk at time t, which is influenced by the climate change and discount rate. In this study, the cumulative economic risks are presented in 2020 Australian dollars and a discount rate of r = 4% is used [38]. A sensitivity analysis is conducted in Section "Sensitivity analysis" using different discount rates.…”

Section: Cumulative Risksmentioning

confidence: 99%

“…Information is scarce to non-existent on timedependent changes in extreme wind speed and associated rainfall for Australia. A time-dependent linear change [38] is then assumed for both wind speed and rainfall intensity. The mean NPVs for different adaptation measures to 2070 with the consideration of construction defects and climate change impacts are shown in Fig.…”

Section: Climate Change Impactsmentioning

confidence: 99%

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Risk-based cost-benefit analysis of climate adaptation measures for Australian contemporary houses under extreme winds

Qin

Stewart

2020

J Infrastruct Preserv Resil

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Climate adaptation measures improve housing resilience to extreme winds, and reduce economic losses associated with wind and rainfall damage under a changing climate. Several adaptation measures are adopted in this study for Australian contemporary houses subjected to non-cyclonic windstorms to either reinforce the building envelope or increase the water resistance of building interior. A risk-based cost-benefit analysis is conducted to evaluate the cost-effectiveness of these adaptation measures that considers the effect of construction defects. It was found that the annual expected losses for houses in Brisbane with construction defects are considerably higher than those without considering construction defects, whereas the influence of construction defects is lower for the Melbourne houses. The cost-benefit analysis reveals that strengthening windows is cost-effective for Brisbane and Melbourne houses. Installing window shutters significantly reduces economic risks associated with extreme winds and is costeffective for houses in Brisbane. Adaptation measures are generally not cost-effective for Melbourne houses due to lower extreme wind speed and associated rainfall.

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Extreme Events for Infrastructure: Uncertainty and Risk

Stewart

Rosowsky

2021

Springer Tracts in Civil Engineering

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Fragility and climate impact assessment of contemporary housing roof sheeting failure due to extreme wind

Cited by 35 publications

References 34 publications

Wind and Rain Losses for Metal-clad Contemporary Houses Subjected to Non-cyclonic Windstorms

Wind and Rain Losses for Metal-clad Contemporary Houses Subjected to Non-cyclonic Windstorms

Risk-based cost-benefit analysis of climate adaptation measures for Australian contemporary houses under extreme winds

Extreme Events for Infrastructure: Uncertainty and Risk

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