Nonlinear finite elements modeling and experiments of FRP-reinforced concrete piles under shear loads

Ali, Abdelrahman; Gouda, A. Thimmana; Mohamed, Hamdy M.; Rabie, Mohamed; Benmokrane, Brahim

doi:10.1016/j.istruc.2020.08.047

Cited by 13 publications

(5 citation statements)

References 21 publications

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“…In this research, the punching performance of an R-C-S-S-C was simulated by applying a nonlinear finite-element (FE) analysis utilizing the FE software Abaqus/CAE standard 6.14-2. Many factors had to be considered in the modelling, including element types, material properties, part assembly, meshing the parts, steps, interaction between parts, loading conditions, and supporting types [31].The following sections provide a brief description of the elements used in this study to model concrete, steel reinforcing bars, steel support, and punching shear reinforcement (steel and GFRPS), as well as the boundary conditions. Some researchers are using FE analysis to model the punching performance of reinforced concrete S-S-C [32].…”

Section: Generalmentioning

confidence: 99%

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: Generalmentioning

confidence: 99%

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 model has been commonly used in the finite element modeling of the reinforced concrete pile by various researchers. For example: a model by (Ali, et. al, 2020) was successfully used for analyzing reinforced concrete piles to study the behavior of a reinforced concrete pile under shear force.…”

Section: Numerical Analysesmentioning

confidence: 99%

“…The FEM results demonstrated that the model accurately predicted the behaviour of the specimens. While the Response 2000 (R2K) software and the modified compression field theory provided accurate predictions of the shear strength [18]. Up to now, Egyptain Code Practice 201 (201) [19] lack theories for using glass fiber bars GFRP, carbon fiber bars CFRP, or geosynthetic geogrids in reinforcing piles.…”

Section: Introductionmentioning

confidence: 99%

Behavior of Piles Reinforced by Geosynthetics Under Lateral Load

El-Kasaby

Awwad

Roshdy

et al. 2023

MSA Engineering Journal

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This paper introduces the results of eleven lateral pile loading tests performed on concrete piles reinforced with different materials such as FRP bars, geosynthetics geogrids, and composite of two materials to check their efficiency in carrying the lateral load. The lateral loading pile test was applied on three groups consisting of ten reinforced concrete pile specimens, and control concrete pile specimen reinforced by steel bars. All samples have the same dimensions (150 mm diameter x 1050 mm length). This research assumed that the pile was placed in a very soft clay soil and rested on a crushed stone layer, so the frictional effect of the soil was neglected. A comparison has been carried out between experimental results for all samples. The experimental results illustrated that the lateral loads carried by piles were increased up to 25.3% by using FRP bars, biaxial geogrid, and uniaxial geogrid. Moreover, a non-linear finite element analysis was verified by Abaqus standard software and achieved a great rapprochement with the experimental results. Finally, a comparison was carried out between the reinforcement cost for all samples, which showed that using these composite piles decreased its cost up to 59%.

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“…Penelitian mengenai material Fibre Reinforced Plastic (FRP) sudah banyak dilakukan orang dari berbagai aspek teknis termasuk kekuatan material jenis ini [1], [2]. Getaran pada material FRP sendiri sudah dilakukan oleh beberapa peneliti [3]- [5].…”

Section: Pendahuluanunclassified

Karakteristik Getaran Pada Dinding Kapal Penumpang Bermaterial Fiber Reinforced Plastic Akibat Operasional Mesin Induk

Lekatompessy

Titiheru²,

Titirloloby³

et al. 2022

ale

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Salah satu sumber getaran pada kapal adalah akibat kerja mesin induk. Material struktur menjadi salah satu penentu besarnya amplitudo yang terjadi. Kapal monohull dengan penggunaan 3 mesin menjadi objek dari penelitian ini. Getaran pada dinding di ruang penumpang menjadi penting ketika amplitudo yang terjadi mengganggu penumpang di dalamnya. Karakteristik getaran perlu diketahui agar dapat dicarikan solusi untuk mengatasinya. Pengukuran getaran langsung di kapal menggunakan vibrometer dan dilanjutkan dengan menggunakan simulasi hingga diperoleh karakteristik getaran pada dinding kapal ini. Hasil pengukuran di lapangan menunjukkan angka amplitudo di atas 0,2 mm melebihi batas yang diijinkan yaitu 0,02 mm. Diperlukan simulasi untuk menggambarkan distribusi getaran pada dinding kapal. Hal ini untuk mempermudah proses analisa pola distribusi getaran . Hasil simulasi pada dinding kapal menunjukkan bahwa getaran dalam arah vertikal mempunyai nilai amplitudo yang lebih besar dan frekuensi lebih rendah dibandingkan arah getaran horisontal. Hal ini mengindikasikan konstruksi dalam keadaan buruk jika frekuensi natural dari sistem tersebut mendekati nilai frekuensi eksitasi akibat operasional mesin. Getaran yang diteruskan dari sumber getaran tidak teredam dengan baik dalam arah vertikal. Hal ini ditunjukkan dengan besarnya nilai amplitudo yang mencapai 10 kali lebih besar dari amplitudo arah getaran horisontal. Penelitian ini menunjukkan diperlukan peredam pada bagian dinding kapal agar getaran dalam arah vertikal dapat dikurangi. Adapun cara meredam getaran dapat dilakukan dengan berbagai cara. Solusi untuk mengurangi getaran ini menjadi peluang untuk dilakukan penelitian lainnya.

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Nonlinear finite elements modeling and experiments of FRP-reinforced concrete piles under shear loads

Cited by 13 publications

References 21 publications

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

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

Behavior of Piles Reinforced by Geosynthetics Under Lateral Load

Karakteristik Getaran Pada Dinding Kapal Penumpang Bermaterial Fiber Reinforced Plastic Akibat Operasional Mesin Induk

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