End User representatives
Typically, older Australian houses built prior to the mid-1980s do not offer the same level of performance and protection during severe wind as houses constructed to contemporary building standards. Given that these existing older houses will represent the bulk of the housing stock for many decades, practical structural upgrading solutions based on the latest research will make a significant improvement to housing performance during storms, and to the economic and social wellbeing of the community.
This project is developing the evidence base for risk mitigation by devising simple practical and economic upgrading options for existing houses. The outcomes will promote retrofit investment by home owners and provide a basis for incentives to encourage this action through insurance and government initiatives.
The primary objective is to develop costeffective strategies for mitigating damage to housing from severe windstorms across Australia. Outputs from this project will target a range of users, from policy development through to homeowners and builders on recommended actions to improve resilience of existing housing. The uptake of the research will reduce the cost of natural disasters in Australia.
The project has collected and analysed information from the impacts of tropical cyclones and thunderstorms, which will provide valuable input into the development of vulnerability modelling. It has published reports on recent events including the 2014 Brisbane thunderstorm, and 2015 tropical cyclones Nathan, Marcia and Olwyn.
The project will categorise residential structures into types based on building features that influence windstorm vulnerability using Geoscience Australia and James Cook University survey data. From these a suite will be selected to represent those contributing most to windstorm risk.
The project has engaged heavily with key stakeholders and will continue to involve end-users and stakeholders (homeowners, builders, regulators, insurers) to assess amendments and provide feedback on practicality, cost-effectiveness and aesthetics of potential upgrading methods for a range of buildings. It has published online webinars for home owners and builders on building for wind resistance, and participated in various pre-season agency briefings and public events.
Vulnerability models will be developed for each retrofit strategy using survey data, the authors’ existing vulnerability models, and the NEXIS database of Australian housing characteristics. Case studies will be used to evaluate effectiveness of proposed retrofit solutions in risk reduction. Economic assessment using these case studies will be used to promote uptake of practical retrofit options.
Typically, older houses do not offer the same level of performance and protection during windstorms as houses constructed to contemporary building standards.
Many of us live in homes with vulnerabilities that contribute to community wind risk. This project aims to investigate windstorm risk mitigation by: (A) Developing vulnerability models for structural strength of housing from field and laboratory observations, and (B) Evaluating potential upgrading and retrofitting solutions for residential structures.
Many of us live in homes with vulnerabilities that contribute to community wind risk.
Internal pressures can contribute to a large portion of the net wind load on a building.
|Natural hazard exposure information modelling framework||Dr Krishna Nadimpalli||Geoscience Australia|
|Cost-effective mitigation strategy development for flood prone buildings||Dr Tariq Maqsood||Geoscience Australia|
|Enhancing resilience of critical road infrastructure: bridges, culverts and floodways||Prof Sujeeva Setunge||RMIT University|
|Cost-effective mitigation strategy development for building related earthquake risk||Prof Michael Griffith||University of Adelaide|