Architectural Engineering Thesis 2011

R. Bryan Peiffer

Structural Option

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 Bryan Peiffer Changes and discrepancies 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

The proposed thesis for Three PNC Plaza will be to redesign the current building using concrete as
the main material of construction. This will require a new design to the gravity system which may
result in altering the current layout of the building. However, if a Two-Way Post Tensioned slab is
found as an applicable solution the large spans could still be achieved. This design alternative is
being proposed to gain a better understand and more experience in concrete design. The proposed
design for Three PNC Plaza has the potential to lower the depth of the existing floor system
resulting in a greater floor to floor height. Switching from a lightweight concrete composite system
to concrete system will increase the building weight resulting in significant changes to gravity and
lateral loads placed on the building. The lateral system for the building will have to be reexamined
and changed to deal with the updated loads

To view a copy of the entire proposal please click HERE.

To view a copy of the revised proposal please click HERE.

To view a copy of the executive summary click HERE.


Breadth Topic 1 - CM: Cost and Schedule

A construction management breadth analysis will be performed to see the impact the new structural system will have on the cost and schedule of the building. The new cost will be done using RSMeans for an initial estimate and further research will be devoted on how to provide and more thorough analysis. Once the new cost and schedule information has been obtained it will be compared to the original cost and schedule to determine if the new design is practical from a cost/time perspective.


Breadth Topic 1 - Architectural Study
Due to the changing of the structural design for the building aspects of the architecture could possibly be impacted and need redesigned. A further investigation into the impact on the exterior curtain wall facade will be performed. Also, changes to the floor plan layouts of the building will be investigated. Key areas of interest will be the impact the new structural system has to the ballroom and mezzanine levels.