Comparison of three widely-used aerodynamic modifications that minimize the impact of wind loads on tall buildings
Name
166269610-MIT.pdf
Description
Full printable version
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9.06 MB
Format
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Checksum (MD5)
4f170f0eb763aef95cd23c2746e6ce06
Author(s)
Kwok, Raymond Hoi-Kit
Advisor(s)
Jerome J. Connor.
Alternative Title
Comparison of 3 widely-used aerodynamic modifications that minimize the impact of wind loads on tall buildings
Date Issued
2007
Publisher
Massachusetts Institute of Technology
Abstract
For tall buildings, motion caused by wind is usually the most damaging to the lateral support system. As a result, engineers have invented many different methods to limit the motion of the buildings, for example dampers, bracings and outriggers etc. Aerodynamic modification, which is a passive approach, can also be used to reduce the impacts of wind loads. In this thesis, three widely-used aerodynamics modifications are discussed: 1) Shaping the corners of buildings, 2) Addition of openings through buildings and 3) Optimizing cross-sectional shapes of buildings. Comparison based on five criteria related to economy, sustainability, appearance, ease of construction and effectiveness in suppressing response of buildings caused by wind, is performed. With the help of a comparison matrix, it is shown that for a building located in downtown Boston, the method based on optimizing cross-sectional shapes is the best option.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2007.
Includes bibliographical references (leaves 59-60).
Subjects
Civil and Environmental Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
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