Bibliographic Details
| Title: |
Numerical Investigation of the Effect of Post Notching Size and Location on the Behavior of Reinforced Concrete Beam before and after Strengthening. |
| Authors: |
Al-Salman, Harith1 eng.harith.amer@uobabylon.edu.iq, Ali Alfatlawy, Hassanin Abd2 hassanin.a@uokerbala.edu.iq, Al-Mamory, Zainb Kareem3 z.abd1901m@coeng.uobaghdad.edu.iq, Khalaf, Hayder Abdulwahid3 h.khalaf1001@coeng.uobaghdad.edu.iq, Abutaha, Fuad4 fuad.abutaha@antalya.edu.tr |
| Source: |
Tikrit Journal of Engineering Sciences. 2026, Vol. 33 Issue 1, p1-17. 17p. |
| Subjects: |
Notch effect, Concrete beams, Reinforcing bars, Structural dynamics, Finite element method |
| Abstract (English): |
Some structural concrete projects suffered from post-casting changes or modifications to accommodate pipe services due to inefficient initial planning or management. This study aims to evaluate the performance of a reinforced concrete beam with dimensions of 300 mm x 600 mm x 3800 mm for width, height, and span length, respectively. Notches were made at various locations on the face of the support, with various notch depths. A nonlinear parametric three-dimensional (3D) finite element model was developed in Abaqus to evaluate the structural behavior of models subjected to notching with a fixed width of about 150 mm and a length equal to the beam width (or 300 mm). The study covered two main parameters: notch locations at three distances from the face of support (1d,2d, and 3d), and notch depth (0.5d and 0.75 d). Several parameters were adopted as evaluation criteria, including maximum load-carrying capacity, stiffness, ductility, and toughness. Results revealed that the most critical location occurs when the notch distance is three times the beam's clear span, compared to other cases. Also, a notch depth of 0.75d in some locations has a slight effect compared with a notch depth of 0.5d. A steel strip jacket was introduced as an enhancement modification, with a specific configuration for all studied parameters, and showed comparable efficiency to the unnotched beam model. [ABSTRACT FROM AUTHOR] |
| Abstract (Arabic): |
تقدم المقالة دراسة عددية حول كيفية تأثير حجم وموقع الشقوق التي تحدث بعد الصب على السلوك الإنشائي لعوارض الخرسانة المسلحة (الخرسانة المسلحة) قبل وبعد تقويتها بأغلفة فولاذية. باستخدام النمذجة غير الخطية ثلاثية الأبعاد بالعناصر المحدودة في برنامج Abaqus، تحلل الدراسة العوارض التي تحتوي على شقوق عند ثلاث مسافات من وجه الدعم (1D، 2D، و3D، حيث D هو عمق العارضة) وعمقين للشق (0.5D و0.75D). تشير النتائج إلى أن الشقوق الواقعة بعيدًا عن الدعم (عند 3D) تقلل بشكل حاسم من قدرة التحميل، والصلابة، والليونة، وامتصاص الطاقة، مع تأثير أقل لعمق الشق بالقرب من منتصف العارضة. يعيد التقوية بأغلفة الفولاذ الشريطية بشكل فعال قدرة التحميل والصلابة والليونة للعوارض إلى مستويات مماثلة للعوارض غير المشقوقة من خلال نقل الإجهادات بعيدًا عن تركيزات الإجهاد الناتجة عن الشقوق. توصي الدراسة باستخدام الأغلفة الفولاذية كطريقة إصلاح فعالة للأضرار الناتجة عن الشقوق العرضية في عوارض الخرسانة المسلحة. [Extracted from the article] |
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Copyright of Tikrit Journal of Engineering Sciences is the property of Republic of Iraq Ministry of Higher Education & Scientific Research (MOHESR) and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Database: |
Engineering Source |
