Investigation of transverse reinforcement for R.C flat slabs against punching shear and comparison with innovative strengthening technique using FRP ropes

Makhlouf, Mohamed H.; Ismail, Gamal; Kreem, Ahmed H. Abdel; BADAWI, MARWA

doi:10.1016/j.cscm.2023.e01935

Cited by 7 publications

(3 citation statements)

References 28 publications

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“…The strain ductility for all specimens reinforced with (steel, and GFRPs) increased with the increasing of punching reinforcement ratio due to the better load-carrying capacities of specimens as indicated in the load-strain curves (see Figs. [13][14][15]. As the punching shear reinforcement ratio (70, 50mm distance) increased the strain ductility increased and this value was 6.5% for steel stirrups, and 12.77% for GFRPS.…”

Section: Strainmentioning

confidence: 99%

“…( 3), and Eq. ( 4) can be used to determine the ultimate punching capacity at any critical section [14][15]: v 𝑐 = 𝜈 𝑐 . 𝑏 𝑜 .…”

Section: Flat Slabs With Punching Shear Reinforcement (Steel)mentioning

confidence: 99%

“…Khalil et al tested four halfscale reinforced concrete S-S-C for verifying the effectiveness of applying FRPS techniques to strengthen S-S-C subjected to punching shear [13]. Reinforced concrete F-S subjected to eccentric punching loads was studied by more few researchers [14][15][16]. The slabs were subjected to failure under association of axial load and unbalanced moment in order to determine the effectiveness of GFRPS for punching reinforcement in edge S-S-C strengthened with GFRP bars [17].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Efficiency of (GFRP- Steel) Stirrups in Reinforcing the Punching of Slab-Column Connections subjected to Eccentric Load

BADAWI

Makhlouf

Ismail

et al. 2023

MSA Engineering Journal

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The effectiveness of inner stirrups as the punching shear reinforcement for slab-column connections under eccentric loading was studied in this research with the purpose of improving the punching behaviour. This research experimental data and results study the effect of using steel, and glass fiber reinforced polymer stirrups (GFRPS) as punching shear reinforcement for interior slab-column connections (S-C-C) under eccentric loading. The experimental program consists of six flat slabs with dimensions of 1600*1600 *150 mm, stub column having a 200*200 mm cross-section with 700 mm total height extended outside both sides of the slab. The variables were the materials used for manufacturing stirrups (Steel -GFRP), the distance between stirrups (50 or 70) mm, and the case of loading (eccentric or centric load). The experimental results showed a noticeable increase in punching shear resistance for the slabs reinforced with stirrups ranged from 28 to 63% compared to the control specimen. Finite element analysis was performed using the Abaqus/CAE6.14 software, and the results were compared to the experimental results, which revealed a significant agreement. A Parametric analysis MSA ENGINEERING JOURNAL Volume 2 Issue 2, E-ISSN 2812-4928, P-ISSN 28125339 (https://msaeng.journals.ekb.eg//) was also performed on the validated model. Finally, Equations for punching strength prediction were applied and then compared with the experimental results.

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Section: Strainmentioning

confidence: 99%

“…( 3), and Eq. ( 4) can be used to determine the ultimate punching capacity at any critical section [14][15]: v 𝑐 = 𝜈 𝑐 . 𝑏 𝑜 .…”

Section: Flat Slabs With Punching Shear Reinforcement (Steel)mentioning

confidence: 99%