Wind and Structures

  • 제37권2호
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  • Pages.95-104
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  • 2023
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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The 2021 Australian/New Zealand Standard, AS/NZS 1170.2:2021

  • John D. Holmes (JDH Consulting) ;
  • Richard G.J. Flay (Department of Mechanical and Mechatronics Engineering, University of Auckland) ;
  • John D. Ginger (College of Science and Engineering, James Cook University) ;
  • Matthew Mason (School of Civil Engineering, University of Queensland) ;
  • Antonios Rofail (Windtech Consultants) ;
  • Graeme S. Wood (Arup Group)
  • 투고 : 2022.08.12
  • 심사 : 2023.07.05
  • 발행 : 2023.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

The latest revision of AS/NZS 1170.2 incorporates some new research and knowledge on strong winds, climate change, and shape factors for new structures of interest such as solar panels. Unlike most other jurisdictions, Australia and New Zealand covers a vast area of land, a latitude range from 11° to 47°S climatic zones from tropical to cold temperate, and virtually every type of extreme wind event. The latter includes gales from synoptic-scale depressions, severe convectively-driven downdrafts from thunderstorms, tropical cyclones, downslope winds, and tornadoes. All except tornadoes are now covered within AS/NZS 1170.2. The paper describes the main features of the 2021 edition with emphasis on the new content, including the changes in the regional boundaries, regional wind speeds, terrain-height, topographic and direction multipliers. A new 'climate change multiplier' has been included, and the gust and turbulence profiles for over-water winds have been revised. Amongst the changes to the provisions for shape factors, values are provided for ground-mounted solar panels, and new data are provided for curved roofs. New methods have been given for dynamic response factors for poles and masts, and advice given for acceleration calculations for high-rise buildings and other dynamically wind-sensitive structures.

키워드

과제정보

The authors acknowledge the contributions of other members of committees BD006-02 and BD006, during the development of AS/NZS 1170.2:2021, as well as the many users of the Standard who contributed in the public comment period. The authors also acknowledge the valuable contributions of Dr A.A.S. Pirooz and Dr R. Turner to the analysis of the New Zealand wind data.

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