Flexural and shear cracking performance of strengthened RC rectangular beam with variable pattern of the BFRP strips

Narule, Giridhar N.; Sonawane, Kalyani K.

doi:10.1007/s41062-022-00785-0

Cited by 4 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the current experimental values are in close agreement with the previous works; compared with BRTP 60D. The ultimate load (Pu) SBN is similar to BTRP 60D and CBN Specimen, similar to BT [30]. Prediction of experimental ultimate load ratio and analysis, namely Mu exp / Mu cal calculation of the ratio of the capacity of the test result to the capacity of the moment of the theoretical result.…”

Section: Figure 11 Comparison Of Loading Capacitysupporting

confidence: 87%

Performance Flexural of RC Beams Without Concrete at Tension Cross-section

Amir

Rahman²,

Opirina³

et al. 2022

Civ Eng J

View full text Add to dashboard Cite

This study aims to analyze the flexural capacity of RC without concrete in a tension cross-section using an experimental method. The number of specimens is three pieces, namely a spiral reinforced concrete beam (SBC) and a vertical reinforced concrete beam (CBN); both of these blocks are without concrete in the cross-section of the reinforcement and 60D tensile steel reinforcement in the support area, where D is the primary diameter, and a conventional concrete beam as the control beam (CB). The beam size is 3100×150×200 mm. The beams are supported by simple supports with a span of 3000 mm. The concrete in the structural beam elements, which work optimally to withstand the load, is the outermost fibre part of the side, while the concrete on the tension side does not have a direct role in determining the magnitude of the resisting moment. Therefore, the quality of the concrete in the concrete beam section must be optimized, while the concrete in the tension section must be minimized. Eliminating concrete in tension areas reduces the construction's self-weight and use of concrete-making materials. The main variables in this research are bending behaviour and crack pattern. The beam specimens were tested with two-point loading monotonically. By observing the crack pattern and failure mode, the results showed an increase in the capacity load of SBC by 21.58% CBN but a decrease of 27.57% compared to the CB control beam. Flexural cracks and beam failures resembled under-reinforcing. The flexural capacity was analyzed based on static analysis and then validated by calculating the ratio between the theoretical nominal moment and the experimental moment. This finding shows that changing the conventional shear reinforcement model to spiral can increase the flexural of the beam without concrete in the tension cross-section. Doi: 10.28991/CEJ-2022-08-11-014 Full Text: PDF

show abstract

Section: Figure 11 Comparison Of Loading Capacitysupporting

confidence: 87%

Performance Flexural of RC Beams Without Concrete at Tension Cross-section

Amir

Rahman²,

Opirina³

et al. 2022

Civ Eng J

View full text Add to dashboard Cite

show abstract

“…Recently, spiral transverse reinforcement was used to enhance the performance of the structure as a new promising technique. During this time, many researchers used spiral stirrups to study the shear reinforcement of different samples [4][5][6][7][8][9][10][11]. The shear reinforcement in spiral shape improved the effectiveness of the specimens in terms of failure mechanisms, ductility, and loading capacity.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Torsional Reinforcement of Concrete Beams in Unconventional by ANSYS Software

Mohammed

Breesem²,

Hussein³

2023

Civ Eng J

View full text Add to dashboard Cite

In this study, a finite element analysis is conducted to study the behaviour of RC beams with different configurations of transverse reinforcement under torsion. These configurations of stirrups are traditional closed stirrups, circular spiral stirrups, and inclined rectangular spiral stirrups. The numerical torsional load values are compared with the experimental torsional load values from previous research. The numerical analysis determined by the ANSYS software shows a reasonable agreement with the experimental torsional load values. The numerical results demonstrate that the use of continuous rectangular spiral stirrups improved the torsional response compared to using another type of beam stirrup. Thus, numerical results show that continuous spiral stirrups are effective at increasing torsional capacity. It is also noted that the behaviour of these beams with continuous spiral stirrups is better than the behaviour of the beams with traditional stirrups. The beams with helical reinforcement, which are TB2, TB3, and TB4 spiral reinforcements, greatly enhanced the toughness. The equivalent stresses are 13.709, 13.728, 14.72, and 15.894 MPa, while the equivalent elastic strains are 0.00421, 0.00377, 0.00347, and 0.00539 mm/mm for the beams TB2, TB3, and TB4, respectively. The beam TB4 had the highest stress and strain value, so its strength improved its ductility properties. As a result, the stirrups' configurations enabled the detection of beam failure mechanisms by improving torsional behaviour when compared to the beam's traditional stirrups. As a result, this research adds more knowledge to the literature on the most effective spiral stirrups for transverse reinforcement to improve the torsional behaviour of beams. Doi: 10.28991/CEJ-2023-09-01-04 Full Text: PDF

show abstract