Technical Report 1

The structural concepts and existing conditions report contains descriptions of the 8th Street Office Building's various spaces and functions as well as its structural system. The foundation, superstructure and lateral system were thoroughly investigated. Gravity and lateral loads were analyzed, and spot checks were performed on a typical bay. Images and hand calculations have been provided to support the descriptions and conclusions reached in the report.

Technical Report 2

The advantages and disadvantages of the existing floor system and three alternative floor systems are discussed in regards to the 8th Street Office Building. The existing floor system consists of composite metal decking and slab on composite steel beams. The alternative floor systems that are designed in the report are the following:

  • One-Way Solid Slab
  • One-Way Joist Slab
  • Pre-Cast Hollow Core Planks on Steel Beams

Each system was designed using a typical exterior bay of 20'-0" by 40'-6". Major criteria in comparing the systems included self weight, cost, and constructability.

Technical Report 3

A detailed lateral analysis was performed regarding the lateral system of the 8th Street Office Building. The existing lateral system consists of 16 reinforced concrete shear walls, and it is assumed that the floors act as rigid diaphragms. Wind and seismic loads were transferred to the shear walls in relation to their relative stiffnesses. Direct shear and torsional shear were considered. An ETABS computer model was utilized for some of the complex calculations, which resulted from the unique geometry of the building.










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 Carol Gaertner. 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.

All renderings have been provided courtesy of Commonwealth Architects.
This page was last updated on 12.01.09 by Carol Gaertner and is hosted by the AE Department ©2009.