Low-velocity impact behavior of two-way RC slab strengthening with carbon TRM strips

Şengel, Hasan Selim; Erol, Hakan; Yılmaz, Tolga; Gürdal, Hasan Can; Uludoğan, Ahmet Muhammed

doi:10.1016/j.istruc.2022.08.108

Cited by 9 publications

(3 citation statements)

References 45 publications

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“…In this study [41,42,48,89], the evaluation predominantly relied on numerical estimations of acceleration, contrasting results primarily at the initial impact. Te culmination of acceleration during impact reveals the inertia infuence of the slab, intimately linked with its rigidity.…”

Section: Accelerationmentioning

confidence: 99%

“…Tese include shear studs [18], basalt fber-reinforced polymer (FRP) strips [19], hybrid fbers comprising hooked-end steel, polypropylene, and Kevlar [20], high-performance fber-reinforced cementitious composites (HPFRCCs) [21], prestressed concrete [22,23], ferrocement [24], internal anchorage stirrups [25][26][27], Wshaped stirrups [28], truss shear reinforcement [29][30][31], steel plates and slurry-infltrated mat concrete (SIMCON) laminates [32,33], polypropylene fber [33], geogrids [34], and carbon textiles [35]. Increasing the thickness of the slab has demonstrated efcacy in reducing damage and altering failure modes [36], while employing higher-grade concrete has shown some advantages in mitigating slab puncture [37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

“…Employing TRM strips [41] for fortifying concrete slabs against low-velocity impacts can enhance their resilience, diminish surface deterioration, modify the fexural behavior and fracture patterns of the slab, and optimize the absorption and dispersion of energy across the entirety of the structure. Similarly, CFRP can ofer improvements in resisting impacts, managing surface damage, and enhancing the structural resilience, with strategic placement and orientation of CFRP strips [42] yielding even better protection.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Anti-Impact Performance Enhancement of Two-Way Spanning Slab through the Implementation of Steel Trussed Bars

Al-Dala’ien,

Anas,

Kodrg

2024

Journal of Engineering

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Reinforced concrete (RC) slabs represent integral structural components extensively employed in architectural and infrastructural frameworks owing to their inherent robustness and longevity. In contemporary times, there has been a pronounced surge in endeavors aimed at comprehensively elucidating the anti-impact properties inherent in RC slabs. This surge is propelled by a compelling necessity to fortify these structures against the deleterious effects of low-velocity impacts, thereby ensuring their steadfastness and resilience. Consider the thorough investigation into the anti-impact characteristics of RC slabs, which has been rigorously pursued through both experimental and computational methodologies. A plethora of scholarly discourse on this topic is readily available, providing invaluable insights into the structural dynamics governing slabs subjected to low-velocity impacts. However, there is a noticeable gap in research concerning the strengthening of slabs through shear reinforcement, particularly through economical, easily fabricated, and efficient systems such as fabricated trussed bars. The primary objective of this study is to explore the structural behavior of RC slabs fortified with custom-designed trussed bars under the influence of low-velocity impacts. To accomplish this, the Abaqus software platform is explicitly employed for analysis. The slab without any shear reinforcement is experimentally tested and serves as a reference model for numerical verification. Its anti-impact performance is compared with numerical findings. Following validation, simulations are conducted for square slabs strengthened by fabricated trussed bars in orthogonal and diagonal layouts. The results demonstrate that employing fabricated truss bars shear reinforcement with a 3 mm diameter in orthogonal and diagonal layouts enhances the resistance of slabs to damage, resulting in a 28.41% and 47.06% decrease in damage, respectively. The utilization of engineered truss bars as shear reinforcement yields significant improvements in strength, rigidity, and ductility when compared to control samples lacking such reinforcement. This enhancement is particularly evident when the engineered truss bars are arranged in orthogonal and diagonal configurations.

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Section: Accelerationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Anti-Impact Performance Enhancement of Two-Way Spanning Slab through the Implementation of Steel Trussed Bars

Al-Dala’ien,

Anas,

Kodrg

2024

Journal of Engineering

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Experimental and numerical investigation of low‐velocity impact behavior and failure mode of shear deficient RC beam strengthened with CFRP strips

Çalışkan,

Aras,

Yılmaz

et al. 2024

Structural Concrete

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It is well‐known that shear failure is a collapse mechanism that is the riskiest, fastest, and catastrophic and occurs with no visible signs of damage or prior warning for RC beams. Therefore, to prevent brittle shear failure, the RC beams should include sufficient shear reinforcement, such as stirrups, and be designed to have sufficient shear capacity. However, the RC beams' shear capacity becomes inadequate for various reasons. One of these reasons may be the acting of the impulsive impact load, which is uncommon and disregarded in the design phase on the RC beams. An experimental program was conducted to examine the impact behavior and failure mode of shear‐deficient RC beams in the scope of the present study. Besides, it aims to investigate the effectiveness of the strengthening method using CFRP strips in improving the general behavior, failure mode, and performance of shear‐deficient RC beams exposed to impact load. The time histories of the accelerations, displacements, impact loads, and strains in the CFRP strips were measured. They were interpreted how they are affected by experimental variables examined in the experimental study. Furthermore, the finite element model of the specimens was generated in the LS‐DYNA software, and the experimental and numerical results were compared by performing finite element analysis in terms of failure modes and general behavior.

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Investigation of low-velocity impact behavior of two-way RC slab strengthening with basalt TRM strips

Erol,

Şengel,

Yılmaz

et al. 2023

Archiv.Civ.Mech.Eng

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Low-velocity impact behavior of two-way RC slab strengthening with carbon TRM strips

Cited by 9 publications

References 45 publications

Anti-Impact Performance Enhancement of Two-Way Spanning Slab through the Implementation of Steel Trussed Bars

Anti-Impact Performance Enhancement of Two-Way Spanning Slab through the Implementation of Steel Trussed Bars

Experimental and numerical investigation of low‐velocity impact behavior and failure mode of shear deficient RC beam strengthened with CFRP strips

Investigation of low-velocity impact behavior of two-way RC slab strengthening with basalt TRM strips

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