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The purpose of this report is to provide an overview of the depth and breadth studies proposed for the spring semester senior thesis work. The proposal offers a discussion of the structural depth, which is a redesign of the lateral system from braced to moment frames. Two breadth studies are also detailed, including a redesign of the building enclosure (Breadth One) and a hygrothermal analysis and impact assessment of the enclosure redesign on the building’s mechanical systems (Breadth Two).
Structural Depth
An ETABS structural computer model will be developed to investigate different moment frame layouts and varying numbers of rigid frames. Controlling moments and other joint reactions will be determined from the ETABS output, based on the critical loading found in Technical Report 3. Using the ETABS reported reactions, the beam-to-column connections will be designed to resist the applied forces. The columns will be checked for strength and stiffening elements will be designed where required. Beam and column sizes will also be adjusted as necessary to meet strength requirements.
Breadth One
Breadth One will include research and analysis of potential glazing system options to replace the existing insulated metal panels. Enclosure performance will consider resistance to heat and moisture transfer through the building envelope. Once an enclosure is chosen, an effective configuration will be determined with consideration to both span distance and wind loading.
Breadth Two
Breadth Two will include an assessment of the hygrothermal performance of the proposed and existing enclosures. Following the initial assessment and comparison, the effects of the redesign on the heating and cooling loads of the building will be quantified. Finally, the potential impact on the building’s mechanical systems will be assessed.
MAE Requirements
Means and methods from graduate level coursework will be used throughout the investigation, analysis and design of the depth and breadth work proposed for the senior thesis project in spring 2013. AE 530 - Computer Modeling of Building Structures has provided the base knowledge to effectively model and analyze the Office Building’s structural system using ETABS analysis software. The depth study will rely heavily on the coursework from AE 534 – Analysis and Design of Steel Connections for the design and specification of the fully restrained moment connections forming the rigid moment frames. The breadth studies will both draw on the material covered in AE 542 – Building Enclosure Science and Design for the analysis, assessment and design of the proposed enclosure.
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