Hazem Wasfy Sadek Tawadros <br/><br/>
Effect of pile shaft free length and column-to-piles stiffness on the extent and hierarchy of inelastic excursions in bridge substructure system due to seismic loading /  
 تأثير الطول الحر للخازوق و الجساءة النسبية للعامود والخوازيق على مدى و تسلسل اختراقات عدم المرونة للنظام  السفلى للكوبرى نتيجة لأحمال الزلازل 
Hazem Wasfy Sadek Tawadros ; Supervised Sameh Samir F. Mehanny , Mousa Maher Nagiub Farag  
 - Cairo :   Hazem Wasfy Sadek Tawadros ,   2021 
 - 232 P. :   charts ;   30cm  
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering 
<br/><br/> Pile shaft free length in bridges crossing waterways has a considerable impact on the spread of inelasticity along the pile shaft when compared to the extent of plasticity in the column body, preferable location of the plastic hinge is at the body of the column; the case study bridge was designed according to Eurocode and it has been examined by two different analysis techniques, the pushover inelastic static analysis and time history inelastic dynamic analysis, results showed that the plastic hinge may form along the pile shaft in cases characterized by remarkable relative stiffness between column and group of piles 
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<br/><br/><label>Subjects--Index Terms: </label>Bridges Ductile behavior  Seismic response