Lifetime seismic performance assessment for chloride-corroded reinforced concrete buildings

Chiu, Chien‐Kuo; Tu, Feng Jun; Hsiao, Fu-Pei

doi:10.1080/15732479.2014.886596

Cited by 17 publications

(10 citation statements)

References 25 publications

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“…Ageing reinforced concrete (RC) bridges are susceptible to various environmental stressors including chlorideinduced corrosion and carbonation. Chloride-induced corrosion of reinforcing steel is a major environmental stressor affecting the performance of ageing RC bridges and structures in the UK, USA and other developed countries (Rao et al, 2016a;Chiu et al, 2015). Severe corrosion can result in catastrophic failure (Broomfield, 2007).…”

Section: Introductionmentioning

confidence: 99%

Residual Capacity of Corroded Reinforced Concrete Bridge Components: State-of-the-Art Review

Kashani

Maddocks

Dizaj³

2019

J. Bridge Eng.

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The current paper provides a comprehensive review of experimental studies on corrosion damaged reinforced concrete (RC) components, and the ability of current state-of-the-art numerical models to predict the residual capacity of these corroded RC components. The experimental studies on corroded RC components are classified into five different categories including: (i) beams in flexure, (ii) beams in shear, (iii) columns under pure axial compression, (iv) circular columns in flexure, and (v) rectangular columns in flexure. For each group, a summary of all the previous research are provided. Through the regression analyses, the experimental results of each abovementioned groups are used to examine the adverse effect of corrosion on ductility and, flexural, shear, and axial capacity loss of the corroded RC components. Finally, the observed results of the previous experimental studies are compared with the predicted values using the state-of-the-art numerical models currently available in the literature. The summarised experimental results show that corrosion has much more adverse impact on ductility of the RC columns than strength. However, the effect of corrosion on ductility and strength reduction of RC beams is the same. Moreover, results of cross-sectional moment-curvature analyses using the state-of-the-art corrosion damage models show a good correlation between the predicted residual flexural capacity and observed experimental results. Finally, the existing shortcomings in the literature and open issues to be addressed in the future research are discussed, and some recommendations are provided.

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Section: Introductionmentioning

confidence: 99%

Residual Capacity of Corroded Reinforced Concrete Bridge Components: State-of-the-Art Review

Kashani

Maddocks

Dizaj³

2019

J. Bridge Eng.

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“…Material deterioration, induced by corrosion, is a significant hazard to the durability of reinforced concrete (RC) structures and increases their vulnerability to seismic events (ASCE 2013). This is especially the case for those either in the marine environment or transport structures expose to de-icing salt (Chiu et al 2015). Every year, trillions of dollars are spent worldwide on repair and maintenance of corroded RC structure (Schmitt 2009).…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamic behaviour of severely corroded reinforced concrete columns: shaking table study

Dietz

Alexander

et al. 2019

Bull Earthquake Eng

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A set of benchmark, medium scale, shaking table tests on corroded reinforced concrete (RC) columns is conducted with the aim of investigating the effects of corrosion damage on the nonlinear dynamic behaviour of RC bridge piers. The experimental programme consists of an uncorroded control specimen and two corroded RC column specimens, with identical structural details. An accelerated corrosion procedure is used to corrode the RC columns. The uncorroded and corroded specimens are subjected to far-field long duration ground motion excitations. The two corroded columns had 51% and 65% average mass loss ratios. The testing sequence includes slight, extensive, and complete damage levels, followed by an aftershock to examine the cascade effect on the nonlinear dynamic response of the proposed RC columns. The experimental results show that corrosion changes the failure mode of the RC columns, and has a significant negative impact on the residual strength (about 50% mass loss results in about 80% strength reduction) and drift capacity of RC columns.

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“…The use of carbon steel as reinforcing bars in reinforced concrete (RC) structures located in coastal regions, leading to material deterioration due to corrosion phenomenon [1]. In the recent decades, corrosion of reinforcement is recognised as the primary reason for premature deterioration of RC structures and bridges.…”

Section: Introductionmentioning

confidence: 99%

Probabilistic seismic vulnerability analysis of corroded reinforced concrete frames including spatial variability of pitting corrosion

Dizaj

Madandoust

Kashani

2018

Soil Dynamics and Earthquake Engineering

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A probabilistic framework for seismic vulnerability analysis of corroded Reinforced Concrete (RC) frame structures is developed. An advanced nonlinear finite element modelling technique is used to accurately simulate the nonlinear behaviour of prototype corroded RC frames over their service life. Different sources of uncertainties including modelling uncertainties, geometrical uncertainties and spatial variability of pitting corrosion are considered through Monte Carlo simulation and using Latin Hypercube Sampling (LHS) technique. A set of new seismic damage limit states (SDLS) are defined accounting for multiple failure modes of the corrosion damaged frames by means of pushover analyses. The influence of corrosion on nonlinear dynamic behaviour of corroded RC frames is investigated through Incremental Dynamic Analysis (IDA) of proposed frame structures under 44 far-field ground motions. The impact of considering corrosion damaged SDLS, spatial variability of pitting corrosion, and record-to-record variability on seismic vulnerability of RC frames are explored and discussed in detail. It is concluded that disregarding the influence of corrosion on SDLS significantly underestimates the probability of failure of corroded RC frames. The analyses results show that spatial variability of pitting corrosion does not have a significant impact on global nonlinear behaviour and seismic vulnerability/reliability of corroded RC frames.

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Lifetime seismic performance assessment for chloride-corroded reinforced concrete buildings

Cited by 17 publications

References 25 publications

Residual Capacity of Corroded Reinforced Concrete Bridge Components: State-of-the-Art Review

Residual Capacity of Corroded Reinforced Concrete Bridge Components: State-of-the-Art Review

Nonlinear dynamic behaviour of severely corroded reinforced concrete columns: shaking table study

Probabilistic seismic vulnerability analysis of corroded reinforced concrete frames including spatial variability of pitting corrosion

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