Document Type
Thesis
Date of Award
5-31-1983
Degree Name
Master of Science in Civil Engineering - (M.S.)
Department
Civil and Environmental Engineering
First Advisor
R. John Craig
Second Advisor
C.T. Thomas Hsu
Third Advisor
Methi Wecharatana
Abstract
This research thesis on composite steel-fibrous concrete is based on a series of beam tests conducted in the Structural and Concrete Laboratory of the New Jersey Institute of Technology.
In the first series of tests, two twenty-foot two-span continuous beams were tested. In the first beam, plain reinforced concrete was used in the construction of the composite beam. The second beam had 1.5% by volume of steel fibers in the concrete.
In the second series, four composite T-beams were tested. Two of the beams had 1% of steel fibers by volume. The other two beams were constructed using plain concrete. Sufficient welded stud shear connectors and standard reinforcement steel were used in the fabrication of all the beams.
The flexural behavior, shear behavior and mode of failure for each beam were observed. The reinforced fiber concrete-steel composite beams were compared to the conventional reinforced concrete-steel composite beams. The load vs. centerline deflection, load vs. rotation, and load es. strain across the section were used for comparison.
From the analysis of the results, it can be concluded that the composite fibrous concrete-steel beams had:
1. higher moment capacity
2. higher shear strength
3. more ductility
4. increased bond of reinforcement
5. improved crack control
6. improved control of spalling
7. a very gradual failure in tension since the bonding of fibers was adequate
Recommended Citation
Mookerjee, Avijit, "Behavior of composite steel-fibrous concrete beams" (1983). Theses. 3593.
https://digitalcommons.njit.edu/theses/3593
