Experimental and numerical studies on punching shear strength of concrete slabs containing sintered fly ash aggregates

B, Ranjith Babu; Thenmozhi, R.

doi:10.7764/rdlc.20.1.15

Cited by 5 publications

(6 citation statements)

References 17 publications

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“…Impact loads are severely intense and could occur within nanoseconds due to collisions, explosions, falling heavy objects, and earthquakes or waves affecting offshore structures [1][2][3][5][6][7]11,12,21,[23][24][25]27,28,81]. Structural responses to the impact load are categorized into impulsive, dynamic, and quasi-static loading.…”

Section: Discussionmentioning

confidence: 99%

“…Impact loads are severely intense in nature and could occur within nanoseconds as the result of collisions, explosions, falling heavy objects, earthquakes, or wave effects on offshore structures [1][2][3][5][6][7][8]11,12,21,[24][25][26][27][28]. Structural responses to impact loads are categorized into three sections: (i) impulsive loading, where the impact duration ends before the structure reaches its maximum response; (ii) dynamic loading, where the structure reaches its maximum response almost simultaneously with the end of the impact duration; (iii) quasi-static loading, where the structure reaches its maximum response before the end of the impact duration.…”

Section: Rc Slab Behaviors Under Impact Loadsmentioning

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: Discussionmentioning

confidence: 99%

Section: Rc Slab Behaviors Under Impact Loadsmentioning

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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“…Concrete production using cold bonded and sintered fly ash aggregates, concluded the sintered fly ash aggregates had a better mechanical properties and higher durability factors (Güneyisi, E, Gesoğlu, M, Pürsünlü & Mermerdaş, 2013). The punching shear strength on reinforced concrete slabs using combined natural and clay aggregates, shows that the incorporation of rounded aggregates in concrete possess less punching angle compared to natural aggregate concrete and the study concluded that the round shape of aggregates provides higher restriction to punching (Youm, Kim, Moon, 2014& Babu B, R, 2021.…”

Section: Introductionmentioning

confidence: 93%

Behaviour of sintered fly ash aggregates and steel fibers on reinforced concrete slabs subjected to punching

Thenmozhi²

2022

rdlc

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In this study the optimum replacement percentage of sintered fly ash aggregates in M30 grade of concrete was identified based on 28 days cubical compressive strength value. The optimum replacement of Sintered Fly ash Aggregates (SFA) is 40 %. Before identifying the optimum replacement percentage, the SFAs were tested for suitability test such as crushing strength test, impact test and water absorption test. Further, the optimum 40 % SFAs in concrete is tested for punching shear on the Reinforced Concrete (RC) slabs for a dimension of 1000 mm x 1000 mm x 100 mm. In addition to know the effect of steel fibers in RC slabs subjected to punching. A hook ended steel fibers having an aspect ratio of 55, 80 and 100 is selected and varied by volume of concrete for the punching shear values on RC slabs. The RC slabs concrete contains aspect ratio of steel fibers 55 is varied for 0.25 %, 0.5 %, 0.75 % and 1 % for volume of concrete. In addition to that a constant volume of steel fiber 0.5 % is selected for the aspect ratios of 80 and 100 for the punching shear tests. The punching shear values for the RC slabs shows that partial replacement of SFAs and steel fibers in concrete enhances the punching shear strength. These experimental tested results are compared with finite element programming (ABAQUS) and international codes such as IS 456 and ACI 2011. The experimental punching shear results were higher when compared to international codes.

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“…Programs like ANSYS, LUSAS, and ABAQUS help to identify the deformation zones and stress values of the samples. The finite element approach of the ANSYS program was used to identify the deformation zones in the beam in this study [38].…”

Section: Introductionmentioning

confidence: 99%

Increased Bending Strength in Beam Samples Using Waste Textile Fibers

Özodabaş¹

2022

J. Civ. Eng. Constr.

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High-ductility concrete has been found to lessen the number of fatalities during earthquakes since it absorbs more energy. In this study, the tensile strength region of the beam components in the constructions was enhanced by the use of waste textile fabrics, which also increased the ductility in that area. 10 x 10 x 50-centimeter concrete beam samples were filled with a predetermined number of waste textile fabrics that had been chopped into 2 cm long threads. Class C25 concrete was used according to TS 500 standard. Self-compacting concrete (SCC) was used according to TS EN 12350 standard. It is understood that the results are somewhat improved by the bending values of the beam samples as compared to the prepared reference sample. Waste fibers are believed to help produce recyclable, ecologically friendly concrete by being used in concrete. Additionally, the ANSYS program's finite element method was used to examine the growing stress zones in beams.

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Experimental and numerical studies on punching shear strength of concrete slabs containing sintered fly ash aggregates

Cited by 5 publications

References 17 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

Behaviour of sintered fly ash aggregates and steel fibers on reinforced concrete slabs subjected to punching

Increased Bending Strength in Beam Samples Using Waste Textile Fibers

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