الفهرس 
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Abstract
The main objective of this research is to evaluate the interfacial shear
behavior of grouted pockets connection between R.C beams and R.C slabs in RC
T-beams. The various specific objectives of the study may be summarized as
evaluating the following parameters:
1. Regular distribution for shear connectors along beam span versus
concentrated distribution at supports.
2. Adding horizontal rebars around the grouting pockets in the deck slab.
3. Using grout layer along the interface between slab and beam.
Therefore, this study comprises experimental and analytical studies to
investigate the behavior of precast girders connected with precast deck slabs..
Based on the results of the experimental and the adopted analytical model, design
recommendation will be proposed for the studied beams. This research includes
two phases; experimental, and analytical. Each phase of this study is discussed
briefly in the following subsections.
7.2 Research Scope and Contents
This study consist of experimental and analytical studies to evaluate the
behavior of precast girders connected with precast deck slabs with steel
connectors with different distributions. Based on the results of the experimental
and theoretical calculations, design recommendations will be proposed for the
pocketed connection . This research work includes three phases, experimental,
analytical, and design recommendations. Each part of this study is discussed
briefly in the following subsections.Phase I: Experimental Program:
The experimental program consisted of testing seven specimens, first
specimen (B1) is considered as control beam, other six specimens divided into
two groups depending on different parameters. The first group (specimens B2 to
B5) consisted of five specimens varying in the shear connectors’ distribution
along the beam span to connect the web with the slab panels with different
pockets details and interface grout.
The second group consisted of two specimens (B6 and B7), which varying
in shear connectors ratio in addition to adding horizontal rebars around the
grouting pockets in the deck slab.
The overall dimensions of the beams were 150 mm width, and 300 mm depth
and the slab panels were 450 mm width, and 80 mm depth. The clear span of the
specimens was 2000 mm. Different pocket details are described briefly in the
(Chapter3). The beams were tested using a four-point loading setup up to failure,
with different shear connectors ratio and distribution. The load, deflection,
cracking record and steel strain at which transverse shear failure occurs will be
measured.
Phase II: Analytical Study:
The analytical phase of the research included a rational analysis for the
calculation of the horizontal shear transfer in the interfacial surface between
precast beams and precast deck panels using international codes and strut-and-tie
method. The interfacial shear failure load calculated from codes was compared
with experimental results.
Based on the experimental results of the tested beams and the analytical
work, several conclusions will introduced to give an understanding of the
behavior of the connection between the precast beam and precast deck slab.