A Study on Tall Buildings and AeroDynamic Modifications against Wind Excitation

A Study on Tall Buildings and AeroDynamic Modifications against Wind Excitation - Printable Version

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A Study on Tall Buildings and AeroDynamic Modifications against Wind Excitation - TAFATNEB - 07-05-2015

The purpose of this thesis is to create basic design guidance for tall buildings and their aerodynamic modifications as a resource for architects, engineers, developers, and students. It
aims to make a contribution to and strengthen particularly the architect’s understanding of tall building design, that requires a high level of interdisciplinary approach, by providing a broad
overview of the “tall building” with its general concepts; to demonstrate the importance of human element as a critical component in the design of tall building by clarifying the wind
forces and resulting movements which cause discomfort to building occupants and create serious serviceability issues; and to show the significance of aerodynamic modifications as an effective design approach in terms of mitigating wind excitation. In order to achieve these purposes, firstly, a comprehensive literature survey, which includes the definition, emergence and
historical background, basic planning and design parameters, and lateral load considerations of tall buildings is presented. Following a structural classification of the tall buildings, wind excitation, its negative effects on occupant comfort and serviceabilty issues, and the methods to control wind excitation are studied. Finally, the significance of aerodynamic modifications against wind excitation, which include modifications of building’s cross-sectional shape and its
corner geometry, sculptured building tops, horizontal and vertical openings through-building, are presented from the scholarship on this topic.

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