Finite element analysis of cracking and delamination of concrete beam due to steel corrosion

Du, Yingang; Chan, A. H. C.; Clark, Leslie; Wang, X.T.; Gurkalo, Filip; Bartos, S.

doi:10.1016/j.engstruct.2013.04.005

Cited by 41 publications

(12 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For a reliable durability assessment of corroding RC structures, it is necessary to develop predictive models that consider the simultaneous effects of various environmental stressors [10,11]. Furthermore, the inherent nonlinear properties and time-dependent characteristics of the involved parameters must be taken into account at each step of analysis.…”

Section: Integration Of Random Fields Into Fe Frameworkmentioning

confidence: 99%

Application of large-scale non-Gaussian stochastic fields for the study of corrosion-induced structural deterioration

Shafei

Alipour

2015

Engineering Structures

View full text Add to dashboard Cite

Section: Integration Of Random Fields Into Fe Frameworkmentioning

confidence: 99%

Application of large-scale non-Gaussian stochastic fields for the study of corrosion-induced structural deterioration

Shafei

Alipour

2015

Engineering Structures

View full text Add to dashboard Cite

“…Finite element method (FEM) shows that the cracking of concrete beams due to steel corrosion is caused by an increasing radial expansion of the corroded steel rebars. Beam cracking develops in four stages: internal cracking, internal penetration, external horizontal cracking, and external vertical cracking (Du et al, 2013). Combining DIP and FEM may be an alternative diagnostic tool to the electrochemical LPR and EIS techniques.…”

Section: Introductionmentioning

confidence: 99%

Modeling Steel Corrosion Failure in Reinforced Concrete by Cover Crack Width 3D FEM Analysis

et al. 2020

View full text Add to dashboard Cite

A new predictive 3D FEM model is proposed using the corrosion damage function by measuring the concrete cover crack width, which is a function of the free concrete cover depth, the steel rebar diameter, the mechanical properties of the concrete, and the length of the anodic zone. A significant aspect to evaluate service lifetime conditions in corroded reinforced concrete structures (RCSs) is the concrete cover crack width. Surface cracks originate due to the pressure exerted by the volume expansion of the corrosion products and oxide layer formed on the rebars. In this work, concrete cover crack width on corroded RCS is analyzed by means of finite element method allowing a corrosion damage model to be proposed. The model obtained was used to find a theoretical relationship between the dissolved steel (corrosion process) and the concrete cover crack width. The results were validated using three experimental data sets from the literature: two corrosion case studies in natural environments and one work covering accelerated corrosion in laboratory test conditions. All the beams were exposed to the simultaneous action of flexural stresses and corrosion. A good correlation was observed between the model and the experimental results, thus supporting reliability of the analytical process and validation of the proposed corrosion damage model.

show abstract

“…It is worth noting that the changes owing to damage are generally more significant than changes due to deterioration. Du et al 2 concluded that the undamaged surface of a concrete structure does not confirm its healthy condition. As a result, deterioration is much more difficult to detect.…”

Section: Introductionmentioning

confidence: 99%

Structural Deterioration Detection Using Enhanced Autoregressive Residuals

Monavari

Chan

Nguyễn

et al. 2018

Int. J. Str. Stab. Dyn.

View full text Add to dashboard Cite

This paper presents a study on detecting structural deterioration in existing buildings using ambient vibration measurements. Deterioration is a slow and progressive process which reduces the structural performance, including load-bearing capacity. Each building has unique vibration characteristics which change in time due to deterioration and damage. However, the changes due to deterioration are generally subtler than changes due to damage. Examples of deterioration include subtle loss of steel-concrete bond strength, slight corrosion of reinforcement and onset of internal cracks in structural members. Whereas damage can be defined as major sudden structural changes, such as major external cracks of concrete covers. Herein, a deterioration detection method which uses structural health monitoring (SHM) data is proposed to address the deterioration assessment problem. The proposed novel vibration-based deterioration identification method is a parametric-based approach, incorporated with a nonparametric statistical test, to capture changes in the dynamic characteristics of structures. First, autoregressive (AR) time-series models are fitted to the vibration response time histories at different sensor locations. A sensitive deterioration feature is proposed for detecting deterioration by applying statistical hypotheses of two-sample f-test on the model residuals, based on which a function of the resulting P-values is calculated. A novel AR model order estimation procedure is proposed to enhance the sensitivity of the method. The performance of the proposed method is demonstrated through comprehensive simulations of deterioration at single and multiple locations in finite element models (FEM) of 3 and 20-storey reinforced concrete (RC) frames. The method shows a promising sensitivity to detect small levels of structural deterioration prior to damage, even in the presence of noise.

show abstract

Finite element analysis of cracking and delamination of concrete beam due to steel corrosion

Cited by 41 publications

References 9 publications

Application of large-scale non-Gaussian stochastic fields for the study of corrosion-induced structural deterioration

Application of large-scale non-Gaussian stochastic fields for the study of corrosion-induced structural deterioration

Modeling Steel Corrosion Failure in Reinforced Concrete by Cover Crack Width 3D FEM Analysis

Structural Deterioration Detection Using Enhanced Autoregressive Residuals

Contact Info

Product

Resources

About