Publication Date



Open access

Degree Type


Degree Name

Master of Science (MS)


Civil, Architectural and Environmental Engineering (Engineering)

Date of Defense


First Committee Member

Dr. Wimal Suaris - Committee Chair

Second Committee Member

Dr. Antonio Nanni - Committee Member

Third Committee Member

Dr. Mohamed Fahmy - Committee Member

Fourth Committee Member

Dr. Fernando Tinoco - Committee Member


The application of steel joists to floor construction can be traced back more than 100 years to the use of a sheet steel joist in the State of New York Bank Building in 1855. Since that time various forms of joists have been developed and exploited. As a result, two general types of joists are now on the market: a) Solid web joists; b) Open web, or truss type, steel joists. In order to determine the strength, stiffness, and behavior of these structural sections under load, representative open web steel joists have been tested at the University of Miami, School of Nursing Building (building about to be demolished). Using two hydraulic jacks to apply the load at eight different locations along the strip, the assessment of the ultimate structural performance of the floor system to positive moments in correspondence of selected strips was possible. After analyzing the data collected from the sensors through the data acquisition system, it was concluded that the results obtained from the Finite Element model were consistent compared to the results obtained from the experimental approach, helping to understand better the behavior of this structural system. A recommendation for further study is enclosed.


Steel Joist; Composite Floor System