Title page for ETD etd-11798-144355


Type of Document Master's Thesis
Author Beavers, Timothy Allan
Author's Email Address timb@vt.edu
URN etd-11798-144355
Title Fundamental Natural Frequency of Steel Joist Supported Floors
Degree Master of Science
Department Civil Engineering
Advisory Committee
Advisor Name Title
Murray, Thomas M. Committee Chair
Barker, Richard M. Committee Member
Plaut, Raymond H. Committee Member
Keywords
  • finite element analysis
  • vibrations
Date of Defense 1998-02-09
Availability unrestricted
Abstract
Three aspects in determining the first natural frequency of

steel joist supported floors were studied. The aspects are:

1) determining which finite element model best predict the behavior

of joist-slab tee-beams, 2) investigating the ability of

proposed equations to calculate the effective moment of

inertia of joist-slab tee-beams, and 3) developing a

finite element model to predict the first natural frequency

of steel joist supported floors.

Several finite element models were tested to determine which

one best predicted the experimental results of six

joist-slab setups. The model which best predicted the

experimental results was used.

Next, a study was done to determine the ability of a

proposed equation to predict the effective moment of

inertia of joist-slab tee-beams. The study modeled and

analyzed 130 joist-slab configurations and compared the

results to those calculated using the proposed equations.

Finally, a finite element modeling technique was developed

to predict the first natural frequency of steel joist

supported floors. Seven in-situ floors were experimentally

tested, and those results were compared to the predicted

values given by the models.

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