Ahmed Mohammed Youssef Mohammed <br/><br/>
Seismic evaluation of bridges existing in Egypt and A RE-evaluation of the elastic force reduction factor "E" /  
 التقييم الزلزالى للكبارى المتواجده بمصر واعاده تقييم معامل انقاص القوة المرنة 
Ahmed Mohammed Youssef Mohammed ; Supervised Adel Galal Elattar , Abdelhamid I. Zaghw 
 - Cairo :   Ahmed Mohammed Youssef Mohammed ,   2008 
 - 205 P. :   charts , Facsimiles ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Engineering- Department of Civil Engineering 
<br/><br/> This research evaluates the piers of typically box-girder reinforced concrete biridges mainly used in Egypt seismically using the capacity spectrum method and re-evaluates the elastic fotce reduction R factor pushover analyses oh 48 bridge cases were carried out in the longitudinal and the transversal  direction up to failure using the nonlinear analytical structural program PERFORM-3D   
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<br/><br/><label>Subjects--Index Terms: </label>Bridges  Capacity spectrum Seismic evaluation