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Derivation of national expressions for damping modification factor for the design of base-isolated buildings / Mohamed Hesham Mohamed Mohamed Mansour ; Supervised Adel Yehia Akl , Manar Maher Hussein

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Mohamed Hesham Mohamed Mohamed Mansour , 2020Description: 174 P . : charts , facsmilies ; 30cmOther title:
  • استنتاج معادلات قومية لمعامل تعديل الاضمحلال لتصميم المبانى المعزولة زلزاليا [Added title page title]
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Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civil Engineering Summary: Damping modification factor is used in international seismic codes for the design of structures with damping levels higher than 5% such as seismically isolated buildings. This study included deriving expressions for that factor using the data of local earthquakes in Egypt. The ground motions used in this study included 26 natural accelerograms and 150 artificial accelerograms. By comparing the derived expressions in this study with the values in two international codes and in previous studies, it was concluded that the natural earthquakes expressions are more recommended for addition to the Egyptian seismic provisions. The natural earthquakes expressions were used to design hypothetical baseisolated buildings lying in seismic zone (5) in Egypt. A seismic performance assessment was done for the designed base-isolated buildings using time history analyses and their responses were compared to their fixed-base counterparts showing an efficient performance for the studied base-isolated buildings
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.05.Ph.D.2020.Mo.D (Browse shelf(Opens below)) Not for loan 01010110082238000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.05.Ph.D.2020.Mo.D (Browse shelf(Opens below)) 82238.CD Not for loan 01020110082238000

Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civil Engineering

Damping modification factor is used in international seismic codes for the design of structures with damping levels higher than 5% such as seismically isolated buildings. This study included deriving expressions for that factor using the data of local earthquakes in Egypt. The ground motions used in this study included 26 natural accelerograms and 150 artificial accelerograms. By comparing the derived expressions in this study with the values in two international codes and in previous studies, it was concluded that the natural earthquakes expressions are more recommended for addition to the Egyptian seismic provisions. The natural earthquakes expressions were used to design hypothetical baseisolated buildings lying in seismic zone (5) in Egypt. A seismic performance assessment was done for the designed base-isolated buildings using time history analyses and their responses were compared to their fixed-base counterparts showing an efficient performance for the studied base-isolated buildings

Issued also as CD

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