Experimental Study of Reinforced Concrete Slabs Strengthened by CFRP Subjected to Impact Loads

Said, AbdulMuttalib I.; Mouwainea, Enas Mabrook

doi:10.1088/1755-1315/856/1/012002

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…As summarized in Table 1, the behavior of RC slabs under impact loads was investigated experimentally, numerically, and analytically by several researchers. Table 1 shows that effective parameters such as drop height, steel ratio, slab thickness, support layout and support types, impactor velocity, impactor geometry, and impactor mass were some parameters used in past studies [14,30,42,47,49,[69][70][71][72][73]. Studies indicated that slab failure was two-way punching shearing, slab thickness resisted impact load, high steel ratio effectively prevented spalling of concrete, and punching shear resistance was twice higher under static impact loading.…”

Section: Fixed Drop Height 500mmmentioning

confidence: 99%

“…As a result, the performance of the concrete has significantly improved. Therefore, several researchers have focused on high-strength concrete slabs by the addition of composite materials and concrete performance has been investigated, such as steel fibers [59], CFRP [72,73], FRP [78], ultra-high-performance concrete (UHPC) [62], and hybrid bamboo fiber (HBF) [41]. Table 2 reviews and summarizes high-performance concrete and impact loads.…”

Section: High-strength Rc Slab Subjected To Impact Loadmentioning

confidence: 99%

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Failure Modes Behavior of Different Strengthening Types of RC Slabs Subjected to Low-Velocity Impact Loading: A Review

et al. 2023

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Concrete is brittle; hence, it is incredibly likely that concrete buildings may fail in both local and global ways under dynamic and impulsive stresses. An extensive review investigation was carried out to examine reinforced concrete (RC) slab behavior under low-velocity impact loading. Significant past research studies that dealt with experimental and numerical simulations and analytical modeling of the RC slabs under impact loading have been presented in this work. As a result, numerous attempts to define failure behavior and to assess concrete structures’ vulnerability to lateral impact loads have been made in the literature. Based on analytical, numerical, and experimental studies carried out in previous research, this article thoroughly reviewed the current state of the art regarding the responses and failure behaviors of various types of concrete structures and members subjected to low-velocity impact loading. The effects of different structural and load-related factors were examined regarding the impact strength and failure behavior of reinforced concrete slabs reinforced with various types of strengthening procedures and exposed to low-velocity impact loads. The reviews suggested that advanced composite materials, shear reinforcement, and hybrid techniques are promising for effectively strengthening concrete structures.

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Section: Fixed Drop Height 500mmmentioning

confidence: 99%

Section: High-strength Rc Slab Subjected To Impact Loadmentioning

confidence: 99%

Failure Modes Behavior of Different Strengthening Types of RC Slabs Subjected to Low-Velocity Impact Loading: A Review

et al. 2023

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“…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. Tese methods not only ofer structural benefts but also provide design fexibility and potential cost savings, especially in retroftting projects or new constructions aimed at better impact resistance [43][44][45].…”

Section: Introductionmentioning

confidence: 99%

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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Effect of the Stirrup Shear Reinforcement on the Dynamic Behavior and Failure Modes of Two-Way Reinforced Concrete Slab Subjected to the Low-Velocity Impact Loading

Al-Dala’ien,

Syamsir,

Abu Bakar

et al. 2023

Arab J Sci Eng

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Experimental Study of Reinforced Concrete Slabs Strengthened by CFRP Subjected to Impact Loads

Cited by 3 publications

References 5 publications

Failure Modes Behavior of Different Strengthening Types of RC Slabs Subjected to Low-Velocity Impact Loading: A Review

Failure Modes Behavior of Different Strengthening Types of RC Slabs Subjected to Low-Velocity Impact Loading: A Review

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

Effect of the Stirrup Shear Reinforcement on the Dynamic Behavior and Failure Modes of Two-Way Reinforced Concrete Slab Subjected to the Low-Velocity Impact Loading

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