Experimental study on RC T-section beams with an FRP-strengthened web opening

Nie, Xin; Zhang, Shishun; Teng, Jinguang; Chen, G M

doi:10.1016/j.compstruct.2017.11.018

Cited by 46 publications

(78 citation statements)

References 25 publications

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“…Andrew et al (2017) did analytical study on T-shape reinforced concrete beam which he evaluated the behavior of the beam by different equations base on wave propagation coefficients. Nie et al (2018) had experimental study on RC T-Section beam with FRP web strength opening. His results showed that, the size of web opening can be effective in flexural capacity so that increasing the size of opening decrease the flexural capacity.…”

Section: Introductionmentioning

confidence: 99%

Analytical Study of Bending Behavior for Concrete Beams with T-Shaped Cross Section using Composite and Steel Bars

Ghaziyani¹,

Mostafavian²,

Chirani³

2018

American Journal of Engineering and Applied Sciences

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Todays, instead of steel reinforcements, Fiber Reinforced Polymer (FRP) rebars have been using in the reinforced concrete structures. By consideration of different strain-stress behavior between steel and composite material, it is necessary to evaluate the difference of these two materials inside of RC beams. In this research, twelve reinforced concrete T-shape beams were modeled using ABAQUS finite element software. Six of the beams performed as T-shape in which three of them reinforced with FRP rebars and three others were reinforced with steel rebars. As the same as first six beams property, other six beams defined by rectangular performance. The nonlinear static method was used to analysis and load-displacement diagram had been taken to compare the results. The results showed that, the stiffness of T-shape beam is much more than the beams with rectangular performance. Moreover, by comparing FRP and steel rebars, using the FRP rebars reduced stiffness and increased the load capacity.

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Section: Introductionmentioning

confidence: 99%

Analytical Study of Bending Behavior for Concrete Beams with T-Shaped Cross Section using Composite and Steel Bars

Ghaziyani¹,

Mostafavian²,

Chirani³

2018

American Journal of Engineering and Applied Sciences

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“…On every floor, this dead space height inserts the total building height in accordance with the amount and depth of ducts. For that reason, the web openings assist the civil engineer to decrease the structure height, particularly with respect to tall buildings, leading to an extremely cost-effective project [1][2][3][4]. All-inclusive reported papers concerning perforated and continuous RC beams with variable opening sizes, outlines, and positions for monotonic loading are explained in the literature as in [5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Replacement the Tension Reinforcing Bars in Concrete Beams by Steel Pipes

Al-Yassri¹,

Al-Khekany²,

Abbas³

2018

IJET

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Structures designed with reinforced concrete beams are used extensively in construction projects because of their functional and economic features. In this research, tested concrete beams were cast and reinforced with small diameter steel pipes and /or steel bars as flexural reinforcement to study the effect of this configuration of reinforcement on the structural behavior of reinforced concrete beams. The idea of this research involves performing and testing of four reinforced concrete beams reinforced by small diameter steel pipes with different percentages of replacement with traditional steel bars (0%, 33%, 66% and 100%). The experimental results showed that using of steel pipes reduces the flexural capacity by (2.7, 18.3, 37.5%) if compared with traditional steel bar according to the replacement percentages of (33%, 66%, and 100%) respectively. Moreover, the stiffness of beams reinforced with steel pipes (fully or partially) decreased as a result of the difference in the mechanical properties between steel bar and the steel pipe and also, the bond strength reduction between the smooth steel pipe and surrounded concrete.

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“…In a more recent study, Nie et al (2018) tested eight full-scale RC beams under center-point loading up to failure. Two specimens (one with rectangular section and one with T-section) were solid without openings and the other six beams were constructed with T-section and contained single rectangular web opening in shear zone.…”

Section: Introductionmentioning

confidence: 99%

“…However, the research on the use of FRP laminates in the strengthening of RC beams with opening is limited Abdalla et al 2003;El Maaddawy and Sherif 2009;Pimanmas 2010;Chin et al 2011;Hawileh et al 2012;Nie et al 2018). The studies were performed using experiments Abdalla et al 2003;El Maaddawy and Sherif 2009;Pimanmas 2010;Chin et al 2011;Nie et al 2018) and validated with nonlinear finite element (FE) analysis (Pimanmas 2010;Hawileh et al 2012). Some of these studies are briefly described below.…”

Section: Introductionmentioning

confidence: 99%

“…The influence of FRP laminates on the response of solid RC beams under flexure (Alagusundaramoorthy et al 2003;Ashour et al 2004;Hawileh et al 2013) and shear (Li et al 2001;Zhang et al 2004;Islam et al 2005) has been widely studied. However, the research on the use of FRP laminates in the strengthening of RC beams with opening is limited Abdalla et al 2003;El Maaddawy and Sherif 2009;Pimanmas 2010;Chin et al 2011;Hawileh et al 2012;Nie et al 2018). The studies were performed using experiments Abdalla et al 2003;El Maaddawy and Sherif 2009;Pimanmas 2010;Chin et al 2011;Nie et al 2018) and validated with nonlinear finite element (FE) analysis (Pimanmas 2010;Hawileh et al 2012).…”

Section: Introductionmentioning

confidence: 99%

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Behavior of FRP-Strengthened RC Beams with Large Rectangular Web Openings in Flexure Zones: Experimental and Numerical Study

Almusallam

Al-Salloum

Elsanadedy

et al. 2018

Int J Concr Struct Mater

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This paper aims to investigate the behavior of fiber reinforced polymer (FRP) strengthened reinforced concrete (RC) beams containing large rectangular web openings in the flexure zone. Studied parameters were type of loading, opening size and strengthening scheme. Seven RC beams categorized into two different groups were tested. In the first group, two unstrengthened beams (one solid without opening and one with large rectangular web opening in the pure flexure zone) were tested under four-point bending. In the second group, five beams were tested under center-point loading. They comprised of one reference solid beam and four beams with large rectangular web opening in the maximum-moment region. Out of the four beams with openings, two specimens were unstrengthened and the other two were strengthened with two different FRP schemes. A numerical study was also conducted and the results of analysis were validated with experiments. The calibrated analysis was then used for some useful parametric studies in which the effect of different parameters was investigated.

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Experimental study on RC T-section beams with an FRP-strengthened web opening

Cited by 46 publications

References 25 publications

Analytical Study of Bending Behavior for Concrete Beams with T-Shaped Cross Section using Composite and Steel Bars

Analytical Study of Bending Behavior for Concrete Beams with T-Shaped Cross Section using Composite and Steel Bars

Experimental Study of Replacement the Tension Reinforcing Bars in Concrete Beams by Steel Pipes

Behavior of FRP-Strengthened RC Beams with Large Rectangular Web Openings in Flexure Zones: Experimental and Numerical Study

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