In structural engineering, wind load standards play a crucial role in ensuring that buildings and infrastructure can withstand the forces of wind. The release of AS/NZS 1170.2:2021 marks a key update, providing new guidelines that reflect advancements in engineering and climate science. It’s worth noting that these updates are part of the National Construction Code (NCC) 2022, making them a core part of Australia’s regulatory framework for building design.
Wind loading is a critical factor in structural design, directly affecting the safety, performance and durability of buildings and infrastructure. Over time, wind loading standards have evolved to incorporate advancements in research and technology. ASPEC previously explored the history of these changes, tracing developments from the first modern wind loading code, CA 34.2, published in 1971, through to AS/NZS 1170.2:2011 standard and its amendments.
The release of AS/NZS 1170.2:2021 marks a significant milestone, offering updated guidelines that supersede the 2011 version. The key changes include, redefinition of regions, replacement of uncertainty factors with the climate change multiplier, and wind speed calculations.
To review the key changes introduced in AS/NZS 1170.2:2021, including updates to wind regions, climate change multipliers, and revised wind speed calculations, download our detailed technical article below.