Dulles, Virginia


David R. Geiger

Structural Option





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User Note:
- While great efforts have been taken to provide accurate and complete information on the pages of CPEP, please be aware that the information contained herewith is considered a work-in-progress for this thesis project. Modifications and changes related to the original building designs and construction methodologies for this senior thesis project are solely the interpretation of David Geiger. Changes and descrepancies in no way imply that the original design contained errors or was flawed. Differing assumptions, code references, requirements, and methodologies have been incorporated into this thesis project; therefore investigation results may vary from the original design.



Thesis Proposal

Executive Summary

Thesis Proposal

Revised Thesis Proposal

This proposed thesis will focus on comparing the current concrete structure of Dulles Town Center Building One to the same structure if constructed with steel.  A composite steel deck system will be investigated along with a steel moment frame lateral load resisting system.  The foundation system will also be analyzed.  The reduction in building weight could reduce the size of the caissons, but at the same time, now overturning moment and uplift are factors so the size may need to go up. The intent of this analysis is to prove that the original design was the most efficient due to location, cost, and constructability.

Breadth Studies

Breadth Study I

A complete investigation of schedules and construction methods will be performed in order to compare the alternate steel system to the current concrete one.  The goal will be to make the construction process as efficient as possible. A cost analysis and generated schedule will be used to illustrate the effects changing the structural system has on the construction management of the project.

Breadth Study II

With the introduction of a steel structural system to the current layout of Dulles Town Center Building One, vibration beneath the mechanical penthouse may lead to noise problems into the prime office space of the seventh floor.  This study will not only look at reducing vibration in the steel members to decrease sound, but will also explore different acoustical materials to also help with noise transmission.  A cost comparison will be conducted upon completion.




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This page was last updated on 21-April-2009 by David Geiger and is hosted by the AE Department (c) 2009