الفهرس 
Chapter 1 INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The current study aimed to study the behaviour of strengthened RC Broken
Slabs (BSs) in the way of generating a better strengthening technique could be
applied on. The experimental results were applied to six of the reinforced RC
BSs divided into two groups changing every time in overlapping and embedded
length. Two concrete types were employed: Normal Concrete (NC) and
Engineered Cementitious Composite (ECC). Three-dimensional finite element
models were employed using ABAQUS program to simulate the nonlinear
behavior of RC BSs. The main studied variables were the strengthening
techniques, the embedded length (Le) and configuration of the steel plates. All
tested slabs were constructed with an identical geometric properties and
reinforcement details. It worth mentioning that all slabs had 500 mm width x
120 mm thickness with a total span of 2390 mm. Also, the span divided into
two parts; the first one was horizontal part with 1150 mm length and the second
one was the inclined one with 30o inclination angle.
The experimental results were showed and discussed. The instrument
readings versus the applied loads and deformed shape of the specimens were
presented. The load-displacement curve for each slab was determined and
plotted. The study included a comparison between ultimate loads, elastic index,
energy absorption, service load, horizontal displacement and cracking patterns
of the all-tested slabs. A validated mode for the RC BS using FEA software
package, ABAQUS. The develop FEM was able to predict and analyze the
behaviour of the BS and its strengthening techniques under the effect of applied
loads. Concluded with the proposed FEM can simulate these slabs with fair
accuracy under the effect of the loads. Also, there was a good agreement
between the FEM and experimental results for predicting the characteristics of
the RC BSs and the differences were in an acceptable range.