Cracking localization and reduced ductility in fiber-reinforced concrete beams with low reinforcement ratios

Dancygier, Avraham N.; Berkover, Erez

doi:10.1016/j.engstruct.2015.11.046

Cited by 73 publications

(39 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, the meaning of 'ductile response' could be incorrectly delivered to readers because no test results of reinforced UHPC beams without fiber were reported. In accordance with the test results by Yoo and Yoon (2015), reinforced UHPFRC beams exhibited lower ductility indices compared to beams without fiber due to the crack localization behavior, and Dancygier and Berkover (2016) also reported that the inclusion of steel fibers resulted in a decrease of flexural ductility of beams with low conventional reinforcement ratios. Yang et al (2011) examined the flexural behavior of largescale prestressed UHPFRC I-beams.…”

Section: Flexural Dominated Reinforced Uhpfrc Beams Girders and Comsupporting

confidence: 73%

A Review on Structural Behavior, Design, and Application of Ultra-High-Performance Fiber-Reinforced Concrete

Yoo

Yoon

2016

Int J Concr Struct Mater

235

View full text Add to dashboard Cite

An overall review of the structural behaviors of ultra-high-performance fiber-reinforced concrete (UHPFRC) elements subjected to various loading conditions needs to be conducted to prevent duplicate research and to promote its practical applications. Thus, in this study, the behavior of various UHPFRC structures under different loading conditions, such as flexure, shear, torsion, and high-rate loads (impacts and blasts), were synthetically reviewed. In addition, the bond performance between UHPFRC and reinforcements, which is fundamental information for the structural performance of reinforced concrete structures, was investigated. The most widely used international recommendations for structural design with UHPFRC throughout the world (AFGC-SETRA and JSCE) were specifically introduced in terms of material models and flexural and shear design. Lastly, examples of practical applications of UHPFRC for both architectural and civil structures were examined.

show abstract

Section: Flexural Dominated Reinforced Uhpfrc Beams Girders and Comsupporting

confidence: 73%

A Review on Structural Behavior, Design, and Application of Ultra-High-Performance Fiber-Reinforced Concrete

Yoo

Yoon

2016

Int J Concr Struct Mater

235

View full text Add to dashboard Cite

show abstract

“…The flexural model presented in Section 4 is compared to 4-point bending tests conducted by Pfyl and Marti 2001, Dancygier and Berkover 2016, Mertol et al 2015and Yoo and Moon 2018. Table 2 summarizes the specimen properties and assumed values used in the analyses (if any).…”

Section: Sfrc Flexural Beamsmentioning

confidence: 99%

Strength and Deformation Capacity of Tension and Flexural RC Members Containing Steel Fibers

et al. 2020

View full text Add to dashboard Cite

A misnomer exists within the literature on the topic of ductility (deformation capacity) in steel fibre reinforced concrete (SFRC) members subjected to flexure. Several studies report that the addition of fibres to reinforced concrete beams subjected to flexure increases the deformation capacity of the members. This can be true for normally longitudinally reinforced concrete beams; however, a few studies have shown this not to be the case, particularly for lightly reinforced concrete members containing even low amounts of steel fibres. It has been observed that failure may occur at far lower deformations in structural concrete members containing steel fibres than without the fibres. This paper presents a system of rational and mechanically consistent expressions capable of predicting the entire load-deformation relationship for SFRC tension and one-way flexural members. The model is also capable of determining whether the addition of fibres to the reinforced concrete member may lead to a failure mode governed by rupture of the longitudinal reinforcing bars or crushing of the concrete.

show abstract

“…This phenomenon can occur in both normal‐ and high‐strength concretes that include the steel fiber and conventional reinforcement. Some publications pointed out to its negative effect on the flexural ductility for relatively low reinforcement ratios . Moreover, the volumetric ratio of fiber is another parameter affecting the beam ductility.…”

Section: Introductionmentioning

confidence: 99%

“…Some publications pointed out to its negative effect on the flexural ductility for relatively low reinforcement ratios. 5,[9][10][11][12][13] Moreover, the volumetric ratio of fiber is another parameter affecting the beam ductility. In order to ensure sufficient ductility for the beams, the volumetric ratio and fiber type must be compatible with tensile reinforcement ratio.…”

Section: Introductionmentioning

confidence: 99%

Flexural behavior of ultra‐high‐performance fiber reinforced concrete beams with low and high reinforcement ratios

Hasgül

Türker

Birol

et al. 2018

Structural Concrete

View full text Add to dashboard Cite

In the study, the effects of using ultra‐high‐performance fiber reinforced concrete (UHPFRC) on deflection and curvature ductilities, moment capacities, flexural stiffness, and cracking behaviors of beams were experimentally investigated. Eight singly reinforced beams with four tensile reinforcement ratios (0.009, 0.019, 0.028, and 0.043) were tested under four‐point loading to create a pure moment behavior in the mid region. The evaluations were made by comparing the UHPFRC beams and non‐fiber beams containing UHPFRC matrix without steel fiber. Straight micro‐steel fibers with volumetric ratio of 1.5% were used in the UHPFRC matrix. The results of study indicate that the use of UHPFRC for beams having especially high reinforcement ratios provides significant advantages in terms of the considered parameters. Especially high compressive strength and deformation capacity of the UHPFRC allow the use of high reinforcement ratios in beams which results in more economical sizes as long as the beam deflections ensure for both the serviceability and the ultimate limit states. In this study, however, the simplified numerical approach developed for the flexural design of fiber reinforced concrete was applied to the UHPFRC beams, as well.

show abstract

Cracking localization and reduced ductility in fiber-reinforced concrete beams with low reinforcement ratios

Cited by 73 publications

References 9 publications

A Review on Structural Behavior, Design, and Application of Ultra-High-Performance Fiber-Reinforced Concrete

A Review on Structural Behavior, Design, and Application of Ultra-High-Performance Fiber-Reinforced Concrete

Strength and Deformation Capacity of Tension and Flexural RC Members Containing Steel Fibers

Flexural behavior of ultra‐high‐performance fiber reinforced concrete beams with low and high reinforcement ratios

Contact Info

Product

Resources

About