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العنوان
Seismic Performance of Monolithic Monorail Guideway Structures/
المؤلف
Eltahtawy,Abd Elhakim Mohamed Sayed Mohamed
هيئة الاعداد
باحث / عبد الحكيم محمد سيد محمد الطحطاوى
مشرف / بهاء شرف ترك
مشرف / أحمد محمد فرغل
مناقش / هالة محمد جمال الدين القاضي
تاريخ النشر
2022
عدد الصفحات
133p.:
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة المدنية والإنشائية
تاريخ الإجازة
1/1/2022
مكان الإجازة
جامعة عين شمس - كلية الهندسة - انشاءات
الفهرس
Only 14 pages are availabe for public view

from 157

from 157

Abstract

Monolithic Monorail Guideway Structures (MMGWS) have different performance, unlike bridges due to the flexibility of the guideway beams. Assessment of seismic performance of structures is essential to determine the plastic hinge zones, assess the ductility, and predict the failure modes. In this study, the seismic performance of MMGWS was analyzed using nonlinear static pushover analysis (NSPA) and time history analysis (THA). The case study in seismic zone 3 (Cairo, Egypt) as per the Egyptian Code of Practice 207-2015 Part 4: Loads and Forces on Bridges and Intersections [1]. Detailed parametric study was carried out using SAP2000. The parametric study included varying pier height, span length, pier cross section, pier reinforcement ratio, concrete compressive strength, rebar grade and flexure pier cap stiffness to conclude the effect of investigated parameters on the capacity of structure and the case and location of plastic hinges. In NSPA and THA, the moment-curvature (MC) relationship was extracted and idealized by SAP2000 for modelling user-defined hinges for beam and column sections. Hinges were assigned to both ends and mid of beam and both ends of pier cross-sections, respectively. The sequence of formation of plastic hinges and failure of beams and columns were assessed. The analysis results including the pushover curve, energy dissipation, hinge formation locations and damage state were discussed. The hinges were formed in piers prior to beams and the damage states and hinge locations were affected by investigated parameters.