الفهرس 
LITERATURE REVIEWOnly 14 pages are availabe for public view
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Abstract
In the last few decades, greater effort has been given to explicitly evaluate how reinforced concrete buildings are likely to perform during earthquakes. As being one of the special reinforced concrete structural forms flat slabs-columns systems, it needs further attention about its adequacy to resist the earthquake, especially if constructed with large opening in the columns strip.
This study presents through three-dimensional simulations, a nonlinear static analysis to assess the seismic performance of this kind of buildings. The target buildings are assumed to be located in Cairo and designed according to Egyptian code seismic standards. The nonlinear static pushover analysis is performed following the Applied Technology Council procedures (ATC) in assessing the performance of these buildings under moderate earthquake motion.
The results of the study conclude that at the performance point, the point at which the demand made on the structure by seismic load is exactly equal to the capacity of the structure; the performance of the structure is assessed by the structure state at this point and this can be achieve by studying the plastic hinges status that formed at different locations in the structure when the structure reaches its performance point. It is observed that hinges form beyond Collapse Prevention (CP) is zero and hinges were in Life Safety to Collapse Prevention range (LS-CP), overall performance of the studied buildings acts like life safety to collapse prevention and in this event, significant yielding occurred in the slabs-columns connections of the lower stories causing decrease in the structure rigidity and original strength. However before collapse would occur, a substantial margin remains for additional lateral deformation. The structure should be possible to repair; however, for economic reasons this may not be practical. According to ATC categories, these buildings perform well under seismic loads and it is capable of sustaining moderate earthquake if properly designed according to the Egyptian code seismic standards.