الفهرس 
LITERATURE REVIEWOnly 14 pages are availabe for public view
 |  | from | 192 |  |  |
| | | from | 192 | | |
Abstract
The shear resistance of reinforced concrete beams has been a wellknown
research subject over the last several decades. The study of shear
resistance in the case ofT-beams, however, is limited. In intemational codes
such as ACTBuilding Code, the Egyptian code and the Euro-code, the shear
force in a T-beam is assumed to be carried only by its web. This simplified
assumption, however, which has prevailed in the shear design practice, is
necessary.
This thesis focused on studying the influence of changing the upper
flange width of the T-beams and changing of the shear span-depth ratio (aid)
on the shear behavior of reinforced concrete beams. The shear behavior of
reinforced concrete T-beams was evaluated and characterized both
experimentally and analytically. The thesis experimental program consists of a total of five reinforced
concrete T-Section beams with ordinary strength and minimum shear
reinforcement tested under static loading conditions. The behavior of the
tested specimens was compared to a beam specimen of rectangular section
reinforced with the same shear reinforcement.
The analytical investigation focused on using the strut and tie method in
the evaluation of shear strength of the T-section beams. The results of the
analytical program were compared to that of the experimental program. The
analysis was extended to include detailed comparisons with various domestic
and international codes and standards.
Research findings indicate that shear strength ofT-beams is higher than
the shear strength of the rectangular beams, but presence of flange or
increasing it for beams having the same shear span to depth ratio does not
reduce shear crack width and does not significantly affect stirrups strain,
while decreasing shear span to depth ratio for beams having the same flange
width reduce shear crack width and affect significantly stirrups strain:
Analysis shows that the ACI 318-05 and ECP 203-2007 design codes can
conservatively be used for the design reinforced concrete T-beams; also
analysis shows that using the Strut-and-Tie method can be used to predict
well the shear strength of reinforced concrete T-beams.