Experimental investigation of the behavior composite steel-concrete composite beams containing different amounts of steel fibres and conventional reinforcement

Xu, Chunxiao; Cao, Ping; Wu, Kai; Lin, Shiqi; Ding, Yang

doi:10.1016/j.conbuildmat.2019.01.026

Cited by 20 publications

(8 citation statements)

References 17 publications

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“…In the literature, many studies have been undertaken regarding the shear and flexural characteristics of FRC members more specifically on the steel fiber reinforced concrete beams [3][4][5][6][7][8][9]. Studies concerning the shear strength revealed that elimination of stirrups is possible when hooked-type steel fibers in a volume ratio of at least 0.75% are included in the normal and high strength concrete [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…Studies concerning the shear strength revealed that elimination of stirrups is possible when hooked-type steel fibers in a volume ratio of at least 0.75% are included in the normal and high strength concrete [10,11]. However, increasing the volumetric ratio of fibers up to 2.0% or higher might end up with a less ductile failure type [12] depending on the shear length to effective depth ratio [7]. Apart from the contribution to shear, inclusion of steel fiber was also found to be beneficial in terms of cracking and deformational behavior of RC beams subjected to flexure [8,9].…”

Section: Introductionmentioning

confidence: 99%

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An Experimental and Numerical Investigation on the Bending Behavior of Fiber Reinforced Concrete Beams

Çankaya

AKAN

2023

Turkish Journal of Civil Engineering

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The effects of hooked end steel and polypropylene (PP) fibers on the behavior of large-scale doubly reinforced concrete beams under flexure were investigated using experimental and numeric methods. For this purpose, a total of eight beam specimens consisting in two groups were produced in the laboratory and three-point bending tests were conducted under monotonically increasing load. The beams in the groups were designed to have 0.86 and 1.30% tensile reinforcement ratios leading to either flexural or shear critical sections. Three out of eight were produced to be control samples and did not have any fiber additive while remaining five had 0, 0.5 and 1.0% steel or PP fibers by volume. Experimental results showed that the existence of 0.5% either type of fiber in densely reinforced specimens contributed to shear strength and allowed flexural capacities to be fully used instead of an improvement in the capacity. However, when the steel fiber ratio increased to 1.0% flexural capacity was enhanced by 10% for both type of beams. After the experimental study, the beams numerically modeled using nonlinear finite element method and flexural stiffness before yielding as well as yield strength with load carrying capacities were found to be consistent with that of experiments specifically for the beams having stirrup and steel fibers.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Experimental and Numerical Investigation on the Bending Behavior of Fiber Reinforced Concrete Beams

Çankaya

AKAN

2023

Turkish Journal of Civil Engineering

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“…Steel fiber can restrict the development of slip cracks and enhance the combination effect between steel shape and concrete. Therefore, this new structure has a great potential application (Xu et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…Wang (2017) proposed the calculation formula for the bending bearing capacity of high strength SFCES, and the effect of the steel fiber mixing ratio, reinforcement ratio, and stirrup ratio on failure modes has been investigated. Although several experimental studies (Shi, 2019;Wang, 2017;Xu et al, 2019) have been conducted to date to investigate the failure modes and the calculation of the bearing capacity of SFCES, the impact of shrinkage and crack resistance has not been thoroughly analyzed. Thus, the calculation of the cracking load, cracking width, and parameters of serviceability limit state need to be further assess.…”

Section: Introductionmentioning

confidence: 99%

“…As observed in JGJ 138-2016 (2016), the strain changes of steel, steel reinforcement, and concrete before and after sliding are taken into consideration by considering the variation of the section curvature during the loading process to calculate the maximum cracking width, and the accuracy of the calculation model has been verified. Xu et al (2019) have already described the whole failure process of SFCES beams and the calculation of the bearing capacity has been provided. Based on the result, the article summarized the main failure modes and their corresponding load-deflection curves as well as to estimate the effect of steel fibers on cracking load, energy consumption, crack spacing, and crack width in SFCES beams under bending.…”

Section: Introductionmentioning

confidence: 99%

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Cracking behavior and energy consumption of Steel Fiber Concrete Encased Steel beams

Cao

et al. 2021

Advances in Structural Engineering

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Steel Fiber Concrete Encased Steel (SFCES) beams were subjected to bending to investigate the effect of steel fibers on the behavior of Steel Reinforced Concrete beams with or without steel reinforcement. 18 SFCES beams reinforced with steel fibers, steel reinforcement, or both were cast. The parameters considered in the experiment were (a) the volume percentage of steel fiber (0%, 1%, and 2%), (b) the shear span to depth ratio( s/d = 2.5 and 3.5), (c) the stirrups spacing (180 mm and 360 mm), and (d) the presence or absence of longitudinal reinforcement (2Φ8+2Φ10).The cracking load, crack development, energy dissipation capacity, and ductility of the specimens were investigated. The results illustrate that the cracking load F c, the total energy consumption, and the energy ductility increase with increasing steel fiber volume, and the average improvement with a steel fiber volume increase of 1% can reach 36.5%, 21.2%, and 28.67%, respectively. However, this strengthening effect of steel fibers was weakened due to the addition of steel reinforcement. The influence of the steel fiber volume and reinforcement configuration on each stage of energy consumption was mainly concentrated in the elastic ( E 1) and failure stages ( E 3). Finally, mathematical equations were proposed to predict the cracking load and crack width of the SFCES specimens, which were verified by comparing the predictions with the experiment results.

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Physical and mechanical properties of natural rubber modified cement paste

Sukmak

Horpibulsuk

et al. 2020

Construction and Building Materials

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Experimental investigation of the behavior composite steel-concrete composite beams containing different amounts of steel fibres and conventional reinforcement

Cited by 20 publications

References 17 publications

An Experimental and Numerical Investigation on the Bending Behavior of Fiber Reinforced Concrete Beams

An Experimental and Numerical Investigation on the Bending Behavior of Fiber Reinforced Concrete Beams

Cracking behavior and energy consumption of Steel Fiber Concrete Encased Steel beams

Physical and mechanical properties of natural rubber modified cement paste

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