Wind and Structures

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Performance-based wind design framework proposal for tall buildings

  • Alinejad, Hamidreza (Department of Architecture and Architectural Engineering & Engineering Research Institute, Seoul National University) ;
  • Kang, Thomas H.K. (Department of Architecture and Architectural Engineering & Engineering Research Institute, Seoul National University) ;
  • Jeong, Seung Yong (Department of Architecture and Architectural Engineering & Engineering Research Institute, Seoul National University)
  • Received : 2021.01.17
  • Accepted : 2021.03.08
  • Published : 2021.04.25
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Abstract

Performance-based seismic design (PBSD) is currently used for retrofitting of older buildings and the design of new buildings. Whereas, application of performance-based design for wind load is still under development. The tendency has been in the codes to increase wind hazard based on recent recorded events. Since tall buildings are highly susceptible to wind load, necessity for developing a framework for performance-based wind design (PBWD) has intensified. Only a few guidelines such as ASCE (2019) provide information on using PBWD as an alternative for code prescriptive wind design. Though wind hazards, performance objectives, analysis techniques, and acceptance criteria are explained, no recommendations are provided for several aspects like how to select a proper level of wind hazard for each target performance criterion. This paper is an attempt to explain current design philosophy for wind and seismic loads and inherent connection between the components of PBSD for development of a framework for PBWD of tall buildings. Recognizing this connection, a framework for PBWD based on limits set for serviceability and strength is also proposed. Also, the potential for carrying out PBWD in line with ASCE 7-16 is investigated and proposed in this paper.

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References

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