Experimental and numerical investigation of RC beams strengthened with CFRP composites

doi:10.14256/jce.3051.2020

Cited by 4 publications

(4 citation statements)

References 30 publications

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“…Cilj istraživanja Demira i sur. bio je povećati posmičnu nosivost armiranobetonskih (AB) greda primjenom elemenata od polimera armiranih ugljičnim vlaknima (CFRP) i inovativnih sidrišta [42]. Autori navode da nalazi istraživanja pokazuju poboljšanu učinkovitost greda s CFRP elementima.…”

Section: Uvodunclassified

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Software development for retrofitting columns with FRP composites: A case study

Lakusic

2024

JCE

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This manuscript delineates an extensive inquiry into a structure in Ankara, Turkey, specifically focusing on its existing state, retrofitting initiative, and concomitant software development. The evaluation of the building’s current state, earthquake loads, and anticipated structural stresses was conducted per the Turkish Seismic Code of 2018. The structural model was analysed, incorporating data derived from on-site inspections, surveys, and samples from the building’s concrete core and reinforcement elements by employing non-linear calculation methods. Remedial measures were undertaken after recognising deficiencies in the structure’s performance, including strengthening columns and selecting slabs by applying Fibre-Reinforced Polymer (FRP) composites. Subsequently, the authors engineered the FRP Composite Column Strengthening software. This software facilitates the computation of axial compression strength, shear strength, and ductility enhancements for columns after the retrofitting process.

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Section: Uvodunclassified

“…STA4CAD [42] je programski paket za simultanu analizu višekatnih armiranobetonskih konstrukcija izloženih statičkim i seizmičkim opterećenjima te vjetru. Kao statički pristup analizi primijenjena je metoda krutosti.…”

Section: Materijali I Metode 21 Sta4-cad (V141)unclassified

Software development for retrofitting columns with FRP composites: A case study

Lakusic

2024

JCE

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“…Therefore, it is necessary to determine the behaviour of RC beams under various loads. Because RC building systems have been widely used, various experimental and analytical studies have been conducted on an elemental basis [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. These studies aimed to determine the behaviour of RC beams used in RC structures.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of the effect of support conditions on beam shear behaviour in full scale reinforced concrete beams

2024

JCE

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In studies on beams in the literature, the beam elements are designed and tested as simply supported. Therefore, in this study, the behaviour of reinforced concrete (RC) beams under fixed support conditions was numerically investigated using ANSYS finite element software. The variables used in the study are the shear span/effective depth ratio (a/d) and stirrup spacing of the analysed specimens. In this study, 16 RC beams on a 1/1 scale were analysed in 4-point bending protocol. The a/d ratios were assumed to be 1.0, 2.0, and 3.0, in the test members produced. In addition, as another variable, the lateral reinforcement amount was designed and analysed at f8/75, f8/150 and f8/300 mm spacings without stirrups. Load-displacement and stiffness graphs are drawn based on the numerical results. The numerical results were interpreted and compared based on the graphs drawn for each analysis, stress distribution, and damage occurrence in the experiments. The results indicated that the a/d ratio and number of stirrups had strong effects on the behaviour of the fixed supported beams. The results of the beam analyses obtained using ANSYS finite element software were consistent with the experimental results.

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“…As a result, new approaches need to be developed. These new design principles, emerging from strain-based approaches, dictates that RC elements be created with a particular performance objective [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Effect of tightening zone length of reinforced concrete beams on beam capacity

2022

JCE

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This study investigated seismic analysis of the behavior of reinforced concrete beams with various shear spans, stirrup shapes, and tightening zone lengths using the Seismo-struct 2020 program. The load–displacement relations of 24 reinforced concrete beams with different conditions were modeled analytically. The analytical model used in the study was validated by comparing it with the experimental data from the literature. It was found that increasing the length of the tightening zone, particularly in beams with a high shear span, is essential for earthquake safety. In addition, the backbone curve of each beam was extracted, and comparison graphs were analyzed. The results obtained demonstrated that the length of the tightening zone limits the effect of stirrup shape and diameter on beam behavior.

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Experimental and numerical investigation of RC beams strengthened with CFRP composites

Cited by 4 publications

References 30 publications

Software development for retrofitting columns with FRP composites: A case study

Software development for retrofitting columns with FRP composites: A case study

Numerical investigation of the effect of support conditions on beam shear behaviour in full scale reinforced concrete beams

Effect of tightening zone length of reinforced concrete beams on beam capacity

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