Learning Lab

The art of architectural shaping of buildings to reduce wind loading

The art of architectural shaping of buildings to reduce wind loading

Abstract

Tall slender structures are susceptible to across wind excitation, which can result in high structural wind loads and building motions. Sometimes these across wind responses are so severe that mitigation is required to ensure that the desired levels of structural reliability and occupant comfort are achieved by design. Furthermore, with the increasing cost of construction materials and a growing focus on embedded carbon there is an increasing requirement for a buildings structural system to be as efficient as possible. By making changes to the building’s geometry, it is possible to decrease the across-wind response and hence significantly reduce the wind-induced structural responses. Therefore, by considering the shape of the building early in the design process and utilizing a number of simple techniques it can be possible to achieve the desired level of structural reliability and avoid occupancy comfort issues while obtaining significant cost and material savings. 

Learning Objectives:

  1. Understand some of the basic principles that affect structural wind loads and accelerations on tall buildings.
  2. Gain an understanding of vortex shedding, and other phenomena, that cause high wind loads and serviceability issues.
  3. Discuss various shaping strategies. 
  4. Discuss specific building projects where shape optimization strategies have been effective.

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8 June 2022 | 12:00 PM (Central European Standard Time)

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