Corrosion failure in concrete reinforcement to damage during seismic

Doğan, Mizam

doi:10.1016/j.engfailanal.2015.01.015

Cited by 11 publications

(9 citation statements)

References 4 publications

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“…e structural performance of RC structures, however, deteriorates over time for various reasons, such as changes in the environmental conditions, design load, and material properties, as well as structural design errors and defective construction. Among these factors, reinforcement corrosion is one of the primary causes of deterioration, affecting a large number of RC structures [1][2][3][4][5][6][7][8][9][10]. is results in a shortened service life and reduced structural performance (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

“…If RC structures in earthquake-prone areas are seriously corroded, this will inevitably affect their seismic performance and safety. As shown in Figure 2, reinforcement corrosion of RC members has a significant impact on the structural performance deterioration (i.e., seismic performance degradation) caused by earthquakes [7], as seen following recent strong earthquakes including the 1995 Kobe Earthquake in Japan (M � 7.3), the 1999 Jiji Earthquake in Taiwan (M � 7.3), the 1999 Izmit Earthquake in Turkey (M � 7.4), the 2008 Sichuan Earthquake in China (M � 8.0), the 2010 Chile Earthquake (M � 8.8), the 2012 Great East Japan Earthquake (M � 9.0), the 2013 Lushan Earthquake in China (M � 7.0), and the 2016 Kumamoto Earthquake in Japan (M � 7.0).…”

Section: Introductionmentioning

confidence: 99%

“…Few studies on seismic performance have taken into account the influence of deterioration of corroded RC members [7,14], and the quantitative reduction factor, based on the strength-deformation capability of corrosion-damaged members relative to unaffected members, has not been determined conclusively. Different surveys, reports, and studies have highlighted that the corrosion of reinforcements is the main cause of deterioration of RC members [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…e decrease in energy dissipation of FB-C7, which exhibited a maximum absolute half-cell potential, was up to 30.1% compared to that of the FB-C0 control beam. is was attributed to the decrease in effective area of the reinforcing bar due to corrosion [2,4,7,15,16].…”

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confidence: 99%

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Experimental Study on the Structural Performance Degradation of Corrosion‐Damaged Reinforced Concrete Beams

Jung

Lee

2019

Advances in Civil Engineering

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It is very important to investigate the effects of the seismic performance of corrosion-damaged reinforced concrete (RC) members, in terms of their strength and lateral deformability, on the seismic performance of entire building systems. Such investigation allows accurate evaluation of the seismic performance of RC structures with corroded members, including beams and columns. However, current techniques for evaluating the seismic performance of existing RC structures do not take the effects of deterioration (including the corrosion of reinforcing bars) on the performance of RC members into account. The main objective of this research is to propose a practical methodology for evaluating the seismic performance of RC buildings with corrosion-damaged members. We extrapolate a structural performance degradation factor from the strength-deformation capability of corroded members to allow direct quantitative evaluation of their seismic performance. In this study, as a first step toward achieving this goal, we experimentally investigated the effect of reinforcing bar corrosion on the behavior of RC beams and the structural performance degradation factor. Our analysis was based on the strength-deformation capabilities of corrosion-damaged beams. We also propose a relationship between the half-cell potential of corroded reinforcing bars and the structural performance degradation behavior of RC beams. Our results indicate that there is a relatively strong correlation between the performance degradation factor and the average potential difference, with coefficients of determination (R2) of the flexural and shear beams of 0.78 and 0.91, respectively. The potential difference, which was measured using the half-cell measurement method, can serve as one of the indicators of relative structural degradation, but we must ensure that the environmental measurement conditions are held constant.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Experimental Study on the Structural Performance Degradation of Corrosion‐Damaged Reinforced Concrete Beams

Jung

Lee

2019

Advances in Civil Engineering

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“…The severe corrosion of RC structures in earthquake-prone areas will inevitably impact their seismic performance and safety. As shown in Figure 2, the reinforcement corrosion of RC members seriously affects earthquake-induced structural performance, i.e., it indirectly undermines the seismic performance of entire building structures [6]. This phenomenon has Additionally, the world has experienced frequent earthquakes in recent years.…”

Section: Introductionmentioning

confidence: 99%

Structural Performance Degradation of Corrosion-Damaged Reinforced Concrete Beams Based on Finite Element Analysis

2022

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The impact of the seismic performance of corrosion-damaged reinforced concrete (RC) members on the overall seismic performance of the entire RC structure must be investigated. Related research results provide important guidance for a more accurate seismic performance evaluation of RC structures with corroded members including beams and columns. However, currently available technologies for the seismic evaluation of existing RC structures do not consider the impact of reinforcement corrosion-induced deterioration on the seismic performance of RC members. The main focus of this study is on proposing a practical methodology to evaluate the seismic performance of such buildings. More specifically, the proposed methodology enables a direct quantitative evaluation of seismic performance by estimating the structural performance based on the strength and deformation capacity of corroded members. In pursuit of this research background and the objectives, our research team first performed an experimental study to estimate the impact of reinforcement corrosion on the structural behavior of RC shear beams and flexural beams and determine the factors associated with structural performance deterioration. A high correlation between the half-cell potential (HCP) before and after reinforcement corrosion of RC beams and the structural performance degradation factor based on the energy absorption capacity has been seen previously. In this study, a finite element analysis (FEA) was conducted, in which bond strength loss between rebar and concrete due to reinforcement corrosion of beam members was considered as one of the aging-related degradation factors, and the correlation between structural performance degradation before and after corrosion in beam members was studied. In addition, we compared and analyzed the results of the previous experimental research and FEA conducted in this study and proposed a structural performance degradation factor as a function of corrosion of shear and flexural beams. The research results indicate that the FEA-derived bonding factor (β) and performance degradation factor (ϕ) of flexural beam can be approximated with the equation ϕ = (0.36 − β)−1 + 101 (R2 = 0.94), together with β–mV (average potential difference in voltage) correlation mV = (1.36 −β)/(0.018 − 0.05β) In the case of shear beams, FEA resulted in ϕ = 37.3β + 63, which enables regression approximation, showing a high correlation (R2 = 0.98), together with β–mV correlation (mV = 932.5β − 1075). Using the mV–β–ϕ correlation curves, the bonding factor (β) depending on the degree of corrosion of RC beam members and the performance degradation factor (ϕ) based on the consequent strength-deformation capacity can be evaluated.

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Three dimensional imaging of reinforcement corrosion using micro-computed tomography: Literature review

Alhusain

Al-Mayah

2021

Construction and Building Materials

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Corrosion failure in concrete reinforcement to damage during seismic

Cited by 11 publications

References 4 publications

Experimental Study on the Structural Performance Degradation of Corrosion‐Damaged Reinforced Concrete Beams

Experimental Study on the Structural Performance Degradation of Corrosion‐Damaged Reinforced Concrete Beams

Structural Performance Degradation of Corrosion-Damaged Reinforced Concrete Beams Based on Finite Element Analysis

Three dimensional imaging of reinforcement corrosion using micro-computed tomography: Literature review

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