Parametric modeling and optimization of external braced frames for embodied energy and daylight availability
Name
1192306841-MIT.pdf
Size
11.28 MB
Format
Adobe PDF
Checksum (MD5)
1849573a8882d2078716217c21e26711
Author(s)
Montoya-Olsson, Anna Sofia.
Advisor(s)
Gordana Herning and Caitlin Mueller.
Date Issued
2020
Publisher
Massachusetts Institute of Technology
Abstract
External braced frames are structurally efficient systems used in tall building design to resist lateral load, in which the truss-based structural system is located on the perimeter of the building along the facade. One adverse consequence of an external braced frame is the obstruction of views and daylight available in the interior spaces. Daylighting is a passive design practice that utilizes daylight availability for both lighting and heating purposes to reduce building energy consumption. In this thesis, the embodied energy and daylight availability is analyzed for a 40-story building model with varying brace frame designs consisting of HSS hollow rectangular cross-sections. The parameters of the analysis include the external frame design, member density, and site location. The members of the braced frame are optimally sized based on strength and deflection requirements. The objectives include the volume of steel, the covered surface area, annual solar radiation, and the number of element connections. Consequently, the multi-objective optimization process leads to impacts on the embodied energy, operational energy, and cost of the structure. Ultimately, the main motivation for this study is to produce sustainable design solutions for tall buildings in an urban setting that are based on parallel consideration of optimization of daylight accessibility and embodied carbon.
Description
Thesis: M. Eng., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, May, 2020
Cataloged from the official PDF of thesis.
Includes bibliographical references (pages 75-78).
Subjects
Civil and Environmental Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Terms of Use
MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.
Persistent DSpace Link
