Numerical Investigation of the Effect of Post Notching Size and Location on the Behavior of Reinforced Concrete Beam before and after Strengthening
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Abstract
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.
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References
Zhong J, Zhou Y, Bao Q, Wang E, Li Q. Strengthening Mechanism of Channel Steel Plate for Notched Concrete Beams Against Fracture: Test and Numerical Study. Engineering Fracture Mechanics 2017; 180: 132–147.
Geers MGD, De Borst R, Peerlings RHJ. Damage and Crack Modeling in Single-Edge and Double-Edge Notched Concrete Beams. Engineering Fracture Mechanics 2000; 65(2-3): 247–261.
Marí A, Bairán J, Cladera A, Oller E, Ribas C. Shear-Flexural Strength Mechanical Model for the Design and Assessment of Reinforced Concrete Beams. Structure and Infrastructure Engineering 2015; 11(11): 1399–1419.
Kim H, Wagoner MP, Buttlar WG. Micromechanical Fracture Modeling of Asphalt Concrete Using a Single-Edge Notched Beam Test. Materials and Structures 2009; 42(5): 677-689.
Li X, He P, Tang J, Chen X. Experimental and Numerical Studies on Fracture Characteristics of Notched Granite Beams under Cyclic Loading and Unloading. Journal of Strain Analysis for Engineering Design 2021; 56(1): 3-17.
Benaoum F, Khelil F, Benhamena A. Numerical Analysis of Reinforced Concrete Beams Pre-Cracked Reinforced by Composite Materials. Fracture and Structural Integrity 2020; 14(54): 282-296.
Kantar E, Erdem RECEP, Anıl Ö. Nonlinear Finite Element Analysis of Impact Behavior of Concrete Beam. Mathematical and Computational Applications 2011; 16(1): 183-193.
Cotsovos DM, Zeris CA, Abbas AA. Finite Element Modelling of Structural Concrete. 2nd International Conference on Computational Methods in Structural Dynamics & Earthquake Engineering 2009; Rodos, Greece: 1-21.
Amiri S, Masoudnia R. Investigation of the Opening Effects on the Behavior of Concrete Beams without Additional Reinforcement in Opening Region Using FEM Method. Australian Journal of Basic and Applied Sciences 2011; 5(5): 617-627.
Archundia-Aranda HI, Tena-Colunga A, Grande-Vega A. Behavior of Reinforced Concrete Haunched Beams Subjected to Cyclic Shear Loading. Engineering Structures 2013; 49: 27-42.
Tawfik AB, Mahfouz SY, Taher SEDF. Nonlinear ABAQUS Simulations for Notched Concrete Beams. Materials 2021; 14(23): 7349.
Vecchio FJ, Collins MP. The Modified Compression-Field Theory for Reinforced Concrete Elements Subjected to Shear. ACI Journal 1986; 83(2): 219-231.
Benedetti L, Cervera M, Chiumenti M. 3D Numerical Modelling of Twisting Cracks under Bending and Torsion of Skew Notched Beams. Engineering Fracture Mechanics 2017; 176: 235-256.
Zhong J, Song C, Xu J, Cheng Y, Liu F. Experimental and Numerical Simulation Study on Failure Mode Transformation Law of Reinforced Concrete Beam under Impact Load. International Journal of Impact Engineering 2023; 179: 104645.
Hassan RF, Latief AF. Repairing and Strengthening Techniques of RC Beams: A Review. 3rd International Conference for Civil Engineering Science (ICCES 2023) 2023; Ad Diwaniyah, Iraq: 1-12.
Deng J, Li J, Wang Y, Xie W. Numerical Study on Notched Steel Beams Strengthened by CFRP Plates. Construction and Building Materials 2018; 163: 622-633.
De Domenico D, Urso S, Borsellino C, Spinella N, Recupero A. Bond Behavior and Ultimate Capacity of Notched Concrete Beams with Externally-Bonded FRP and PBO-FRCM Systems under Different Environmental Conditions. Construction and Building Materials 2020; 265: 121208.
Meng W, Yao Y, Mobasher B, Khayat KH. Effects of Loading Rate and Notch-to-Depth Ratio of Notched Beams on Flexural Performance of Ultra-High-Performance Concrete. Cement and Concrete Composites 2017; 83: 349-359.
El-Taly B. Structural Performance of Notch Damaged Steel Beams Repaired with Composite Materials. International Journal of Advanced Structural Engineering (IJASE) 2016; 8(2): 119-131.
Khan W, Akhtar S, Rawat A, Basu A. Experimental and Numerical Study on Flexural Behavior of Concrete Beams Using Notches and Repair Materials. Sustainability 2024; 16(7): 2723.
Ismael MA, Hameed YM. Structural Behavior of Hollow-Core Reinforced Self-Compacting Concrete Beams. SN Applied Sciences 2022; 4(5): 150.
Dassault Systemes. Abaqus Product Documentation: Abaqus Analysis User’s Manual, Version 2021. Dassault Systèmes Provence 2021.
Raza A, Khan QUZ, Ahmad A. Numerical Investigation of Load-Carrying Capacity of GFRP-Reinforced Rectangular Concrete Members Using CDP Model in ABAQUS. Advances in Civil Engineering 2019; 2019: 1745341.
Al-Mamory ZK, Al-Ahmed AHA. Behavior of Steel Fiber Reinforced Concrete Beams with CFRP Wrapped Lap Splice Bars. Structures 2022; 44: 1995-2011.
Ibrahim FH, Ali AH. Finite Element Analysis of Cracked One-Way Bubbled Slabs Strengthened by External Prestressed Strands. Journal of Engineering 2021; 27(1): 45-65.
Muhtar, et al. The Prediction of Stiffness of Bamboo-Reinforced Concrete Beams Using Experiment Data and Artificial Neural Networks (ANNs). Crystals 2020; 10(9): 757.
Thamrin R, Zaidir Z, Iwanda D. Ductility Estimation for Flexural Concrete Beams Longitudinally Reinforced with Hybrid FRP–Steel Bars. Polymers 2022; 14(5): 1017.