Finite element analysis of the bending moment-curvature of the double-layered graded concrete beam

Pratama, M. Mirza Abdillah; Suhud, R K; Puspitasari, Poppy; Kusuma, Fuad Indra; Putra, Andika Bagus Nur Rahma

doi:10.1088/1757-899x/494/1/012064

Cited by 20 publications

(6 citation statements)

References 6 publications

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“…In structural analysis, the concept of concrete rigidity is important since it indicates how well beam members can tolerate bending brought on by workloads. In the investigation, the behavior of the graded concrete beam was continually examined [16]. A graded RCB's bending moment-curvature connection was examined via numerical analysis.…”

Section: Literature Reviewmentioning

confidence: 99%

Initial factors impacting vertical displacement, stresses, and propagation of cracks in three-layered steel fiber concrete beams

Lam

2024

2576-8484

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The main aim of the study is to examine the input parameters of three-layered steel fiber concrete beams. Bending RC beams is studied by many different scientists. Multilayer RC beams using SF concrete are one way. In high compressive and tensile stress zones, this method improves beam load strength and reduces cracks. The main goal is to decrease beam stress. Repairing broken three-layered SF-reinforced concrete beams by adding more concrete on top or below the current layer is a benefit. Modifying input parameters during three-layered beam design greatly affects beam efficacy. In this paper, the authors conducted a study using ANSYS simulation and nonlinear material analysis. The objective was to investigate the behavior of three-layered bending RC beams subjected to two concentrated loads. Specifically, the study examined the impact of varying the content of SF in the RC, as well as the effects of stirrup at the ends of the beams. Furthermore, the study explored the influence of changes in the quantity and size of steel bars in the region of tensile strength, along with the effect of varying the SF concrete layer's thickness. The survey results on three-layered beams were used to create diagrams that depict the relationship between load and vertical displacement and load and stress area. These diagrams also help determine the initiation and progression of cracks in three-layered beams, starting from the application of load until the beams become damaged. Ultimately, this information allowed us to identify the specific load level that caused the beams to crack and become damaged.

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Section: Literature Reviewmentioning

confidence: 99%

Initial factors impacting vertical displacement, stresses, and propagation of cracks in three-layered steel fiber concrete beams

Lam

2024

2576-8484

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“…Pengaplikasian beton gradasi pada balok dilakukan dengan meletakkan campuran beton mutu tinggi pada serat tekan dan beton mutu rendah pada serat tarik. Penerapan gradasi mutu beton tersebut mampu mereduksi kebutuhan material semen serta menambah kekakuan struktur sehingga dapat menyamai kinerja yang dihasilkan dari balok beton mutu tinggi konvensional [1]- [7]. Potensi yang dimiliki oleh balok beton gradasi mendorong penulis untuk menginvestigasi lebih lanjut terkait karakteristik mekanik yang dimiliki.…”

Section: Pendahuluanunclassified

Perilaku Lentur Balok Beton Gradasi Dengan Menggunakan Tulangan Maksimum

Pratama¹

2021

JTS

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Previous research has proven that graded concrete can be applied as an optimization on construction work. Global provisions recommend structural planners design ductile structural elements. However, the use of maximum reinforcement ratios is often encountered due to limitations on the dimensions of the structural elements. This study aims to observe the behaviour of graded concrete beams using a maximum reinforcement ratio. The graded concrete beam specimen was made by layering the concrete mix of 40 MPa on the compressive fibre and the concrete mix of 20 MPa on the tensile fibre of the beam. The test was conducted when the beam specimen is 28 days old. The results of this study are 1) At rupture, graded concrete has lower crack resistance; 2) At yield point, the presence of higher strength concrete in the compression fibre increases the load capacity so that the yield rate of reinforcement also increases; 3) At the ultimate condition, as the reinforcement of gra ded concrete in corresponding to the lower concrete strength, the resulting load performance increases accompanied by a decrease in the deflection. In graded concrete specimens in which the reinforcement is designed to correspond to higher concrete strength, the resulting load performance decreases and the deflection increases; 4) The presence of higher strength concrete in the compression fibres of the graded concrete beam increases the stiffness of structural elements; 5) The crack pattern occurring in the overall specimen is shear cracks, which form open diagonal cracks..

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“…However, this research still uses a combination of 2 (two) different concrete qualities and the research is still based on numerical. Previous research conducted by Pratama, Suhud et al, (2019) regarding the analysis of finite element bending moment-curvature in graded concrete beams, it shows that an increase in structural stiffness of 4.7% has the implication of reducing the deflection value of the beam when subjected to a working load. To complete the series of studies that have been carried out previously, validation is needed with similar research through an experimentalbased approach.…”

Section: Introductionmentioning

confidence: 95%

Moment-Curvature Analysis of Graded Concrete Beam With Concrete Strength Disparity Variations

Pratama

Andi²,

Hadhinata³

2022

jpensil

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The application of graded concrete on structural elements is predicted to increase the capacity of the structural performance, serviceability, and to reduce costs compared to conventional concrete structures. This study aims to analyze (1) the load-deflection relationship, (2) the moment-curvature, (3) the deflection ductility ratio, and (4) the crack pattern. This study used reinforced concrete (RC) beams specimens with the dimension of 13x19x150 cm which was categorized as reference specimens and graded concrete beams. For reference specimens, an RC beam possessing concrete strength of 30 MPa; 40 MPa; 50 MPa were prepared; For the graded concrete beams, two specimens made of 30-40 MPa; 30-50 MPa; 40-50 MPa were prepared. In terms of casting graded concrete beams, low-strength concrete is placed on the tensile fiber of the beam, while on the compressive fiber of the beam, high-strength concrete is placed. The specimens were tested using the four-point bending method. The results showed that the increase in the concrete strength in the compression fiber of the beam contributed to the increase in load capacity, stiffness, and serviceability in the post-crack phase. The increase of concrete strength in compression fibers by 20 MPa is considered effective and has a positive impact on the moment-curvature capacity and is considered efficient in construction costs. The deflection ductility of the beam is classified as partial ductile and is adequate for structural design in earthquake-prone areas. A flexural cracks pattern was found on each specimen.

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Finite element analysis of the bending moment-curvature of the double-layered graded concrete beam

Cited by 20 publications

References 6 publications

Initial factors impacting vertical displacement, stresses, and propagation of cracks in three-layered steel fiber concrete beams

Initial factors impacting vertical displacement, stresses, and propagation of cracks in three-layered steel fiber concrete beams

Perilaku Lentur Balok Beton Gradasi Dengan Menggunakan Tulangan Maksimum

Moment-Curvature Analysis of Graded Concrete Beam With Concrete Strength Disparity Variations

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