Non-linear finite element model for reinforced concrete deep beams failing in shear
Other Title(s)
نموذج عددي غير خطي لتمثيل الكمرات الخرسانية العميقة تحت تأثير أحمال القص
Author
Khalil, Ahmad Abd al-Hafiz Mahmud
Source
Journal of al Azhar University : Engineering Sector
Issue
Vol. 15, Issue 56 (31 Jul. 2020), pp.743-752, 10 p.
Publisher
al-Azhar University Faculty of Engineering
Publication Date
2020-07-31
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Topics
Abstract AR
في هذا البحث تم عمل نموذج عددي غير خطي باستخدام طريقة العناصر المحددة لتمثيل الكمرات الخرسانية العميقة التي تنهار تحت أحمال القص.
تم مقارنة النموذج بنتائج اختبارات عملية سابقة لستة كمرات.
و أثبتت المقارنة دقة النموذج العددي و قدرته على التنبؤ بالحمل الأقصى و السلوك ونوع الانهيار.
تم أيضا معايرة لقيم بعض معاملات النموذج العددي و التي تؤثر على النتائج في حالة إدخالها بقيم غير و اقعية.
حيث أوصت الدراسة أن تكون قيمة زاوية الاحتكاك الداخلي للخرسانة 36 درجة و معاير اللزوجة للنموذج 0.01.
Abstract EN
Six reinforced concrete deep beams, previously tested, are analyzed using 3D nonlinear finite element methods.
These beams were tested under a vertical monotonically increasing load till failure.
Two beams specimens were having flexure reinforcement only, two were with shear reinforcement, and two with shear and side reinforcement.
All specimens are analyzed using the concrete damaged plasticity model offered in ABAQUS software.
Damage can be introduced in this model and it is defined separately in compression and tension.
The model is also provided with viscosity parameter that provides additional ductility in the structure and helps to overcome convergence problems.
The effect of mesh size, dilation angle, and viscosity parameters are also studied.
All numerical results are compared to the test results in terms of load-deflection responses, failure mode, and crack patterns.
Finite element analysis results are in good agreement with the experimental results and can give an insight into the failure mechanisms and crack developments of each beam.
The predictive ability of the calibrated models confirms their ability for parametric studies examining the shear behavior of reinforced concrete deep beams with and without shear reinforcement.
American Psychological Association (APA)
Khalil, Ahmad Abd al-Hafiz Mahmud. 2020. Non-linear finite element model for reinforced concrete deep beams failing in shear. Journal of al Azhar University : Engineering Sector،Vol. 15, no. 56, pp.743-752.
https://search.emarefa.net/detail/BIM-1009691
Modern Language Association (MLA)
Khalil, Ahmad Abd al-Hafiz Mahmud. Non-linear finite element model for reinforced concrete deep beams failing in shear. Journal of al Azhar University : Engineering Sector Vol. 15, no. 56 (Jul. 2020), pp.743-752.
https://search.emarefa.net/detail/BIM-1009691
American Medical Association (AMA)
Khalil, Ahmad Abd al-Hafiz Mahmud. Non-linear finite element model for reinforced concrete deep beams failing in shear. Journal of al Azhar University : Engineering Sector. 2020. Vol. 15, no. 56, pp.743-752.
https://search.emarefa.net/detail/BIM-1009691
Data Type
Journal Articles
Language
English
Notes
-
Record ID
BIM-1009691