Shear and flexural strength prediction of corroded R.C. beams

Campione, Giuseppe; Cannella, F.; Cavaleri, Liborio

doi:10.1016/j.conbuildmat.2017.05.125

Cited by 48 publications

(11 citation statements)

References 10 publications

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“…The moment-curvature and moment axial diagram of the section under corrosion was reported by Imperatore et al (2016). Campione et al (2017) explained that the moment capacity of a corroded member is the lower of the following statements…”

Section: Experimental Studies On Shear Behaviormentioning

confidence: 95%

“…The mean of strength ratio using this model and six experimental specimens was 1.17. Moreover, a simple sectional model for flexure and moment-to-shear interaction was proposed to predict shear capacity of corroded RC beams (Campione et al 2017). El-Sayed (2017) proposed a strut-and-tie model for estimating the shear capacity of corroded RC deep beams, a / d > 2.5.…”

Section: Analytical Studies On Shear Behaviormentioning

confidence: 99%

See 1 more Smart Citation

A State-of-the-Art Review of Bending and Shear Behaviors of Corrosion-Damaged Reinforced Concrete Beams

2019

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Section: Experimental Studies On Shear Behaviormentioning

confidence: 95%

Section: Analytical Studies On Shear Behaviormentioning

confidence: 99%

A State-of-the-Art Review of Bending and Shear Behaviors of Corrosion-Damaged Reinforced Concrete Beams

2019

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“…Early deterioration of foundations of reinforced concrete buildings has been frequently reported in recent years and the installed cracking process is often attributed to concrete internal expansions due to several internal swelling mechanisms [1,2]. This pathology can severely affect the durability of concrete structures and has evolved into an issue of interest not only for researchers but also for the worldwide building industry sector.…”

Section: Introductionmentioning

confidence: 99%

Diagnosis and Assessment of Deep Pile Cap Foundation of a Tall Building Affected by Internal Expansion Reactions

et al. 2021

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Early deterioration of reinforced concrete foundations has been often reported in recent years. This process is usually characterized by an extensive mapping cracking process on concrete surfaces that results from several types of Internal Swelling Reaction (ISR). In this paper, a real case study of a tall reinforced concrete building with a severe deterioration process installed in its deep foundations is discussed. Laboratory tests were performed in concrete drilled cores extracted from a deep pile cap block 19 years after the beginning of construction. Tests to assess the compressive strength, the static and the dynamic modulus of elasticity, the gas permeability, and electron microscopy scanning to find out the primary mechanism responsible for the deterioration observed during in situ inspections. Chemical alterations of materials were observed in concrete cores, mainly due to Delayed Ettringite Formation (DEF), which significantly affected the integrity and durability of the structure. Dynamic modulus of elasticity showed to be a better indicator of damage induced by ISR in concrete than compressive strength. Procedures to strengthen the deteriorated elements using prestressing proved to be an efficient strategy to recover the structural integrity of pile caps deteriorated due to expansions due to ISR.

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“…e research results indicated that the flexure load capacity decreased mainly due to the formation of pits on the reinforcement surface [12][13][14][15][16][17]. Lee et al carried out the pullout test to analyze the effect of reinforcement corrosion on the bond properties between concrete and reinforcement and verified that the maximum bonding strength and the bond rigidity of specimens decreased in proportion to the increase in corrosion rate [18].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Bond Performance and Damage Detection of Corroded Reinforced Concrete Specimens

Tian

Liu

Xiao

et al. 2020

Advances in Civil Engineering

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This paper presents the results of an experimental research designed to investigate the combined effects of corrosion rate, concrete cover thickness, and stirrup spacing on the bond performance between reinforcement and concrete of reinforced concrete (RC) specimens. The RC specimens were immersed into sodium chloride solution to eliminate the passivation film on reinforcement. Then, an accelerated corrosion method was applied to corrode reinforcement embedded in concrete specimens. Pullout test was carried out to establish empirical formulas for ultimate slip and ultimate bond strength of RC specimens with three different corrosion rates, different concrete cover thicknesses, and different stirrup spacings. In addition, the bond-slip relation model was developed to predict and evaluate the bond performance of RC specimens. Finally, the ultrasonic technology was used to detect the damage of RC specimens, and the corresponding nonlinear coefficient β was proposed to characterize the damage degree of RC specimens. The susceptibility of β on the damage of specimens was compared with that of ultrasonic velocity, indicating β was more appropriate to evaluate the damage of RC specimens.

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Shear and flexural strength prediction of corroded R.C. beams

Cited by 48 publications

References 10 publications

A State-of-the-Art Review of Bending and Shear Behaviors of Corrosion-Damaged Reinforced Concrete Beams

A State-of-the-Art Review of Bending and Shear Behaviors of Corrosion-Damaged Reinforced Concrete Beams

Diagnosis and Assessment of Deep Pile Cap Foundation of a Tall Building Affected by Internal Expansion Reactions

Experimental Study on Bond Performance and Damage Detection of Corroded Reinforced Concrete Specimens

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