الفهرس 
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Abstract
As known the fact that fire could dramatically reduce the characteristic strength
of the reinforced concrete elements, a lot of hard efforts has been devoted to
study the effect of fire on the reinforced concrete elements for many years ago..
A lot of the previous studies were focused on evaluating of concrete elements
and its fire resistance, and provided some recommendations of structural fireresistance
such as cover thickness, reinforcement ratio and coating materials. A
lot of thesis focused on columns, beams and slabs exposed to fire, where less
efforts aimed to study the effect of fire on beam column connections
Consequently, the main objective of the present work is to study the behavior
of reinforced concrete beam-column connections exposed to fire under cyclic
loading and also to evaluate the reduction in concrete strength during fire. To
achieve these goals, this research is divided into two parts, the first part is
experimental program, and the second is the theoretical analysis. The
experimental program include 12 one- third scale specimens half of them
casted from normal concrete and other half of SCC. For each concrete type, 2
specimens were exposed to 600 °C for one hour, other 2 specimens exposed to
600°C for two hours and last 2 specimens as a control not exposed to fire. The
effect of some parameters on the connection’s behavior like reinforcement
ratio, type of concrete (Normal or SCC) and exposure time were studied.
Experimental program extended also to study heat distribution inside beam –
column connections by measuring temperature at 65 point Distributed at 5
sections allover connection. Excellent behavior in fresh and hardened states of
both normal concrete and SCC was observed for reinforced beam- column
connections. SCC has good properties in hardening state when exposed to high
temperature compared with normal concrete. Increasing reinforcement ratio
increases its fire resistance Good agreement between analytical and
experimental work was observed.