Analysis of lifetime losses of low-rise reinforced concrete buildings attacked by corrosion and earthquakes using a novel method

Chiu, Chien‐Kuo; Chi, Kai-Ning

doi:10.1080/15732479.2012.681790

Cited by 11 publications

(3 citation statements)

References 19 publications

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“…They integrated the theory of structural safety degree and the concept of mathematical statistics and proposed a reliability analysis calculation model. Then earliest reliability calculation model was extensively recognized and studied by other scholars [9]. In 1969, Cornell, an American expert, proposed the concept of reliability index, integrated it with structural failure rate and put forward the conversion formula with regard to reliability index and structural failure rate [10].…”

Section: Development and Status Of Structural Reliability Analysis Mementioning

confidence: 99%

Analysis of time-dependent reliability of degenerated reinforced concrete structure

Zhang¹,

Zhang²,

Xia³

2016

Frattura Ed Integrità Strutturale

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Durability deterioration of structure is a highly random process. The maintenance of degenerated structure involves the calculation of the reliability of time-dependent structure. This study introduced reinforced concrete structure resistance decrease model and related statistical parameters of uncertainty, analyzed resistance decrease rules of corroded bending element of reinforced concrete structure, and finally calculated timedependent reliability of the corroded bending element of reinforced concrete structure, aiming to provide a specific theoretical basis for the application of time-dependent reliability theory.

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Section: Development and Status Of Structural Reliability Analysis Mementioning

confidence: 99%

Analysis of time-dependent reliability of degenerated reinforced concrete structure

Zhang¹,

Zhang²,

Xia³

2016

Frattura Ed Integrità Strutturale

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“…Analytical results showed that the effect of corrosion on seismic performance was highly significant, and it should be considered carefully in performance analysis. Chiu and Chi (2013) proposed mechanical models for corroded beam or column members and adopted a superposition method, which is not suggested by ATC-40 (1996), to simulate the structure performance of an RC building. Although the proposed method in that study is effective to evaluate lifetime losses of corroded RC buildings under seismic events, the mechanical models for corroded members should be verified by experimental data.…”

Section: Introductionmentioning

confidence: 99%

Lifetime seismic performance assessment for chloride-corroded reinforced concrete buildings

Chiu

Hsiao

2014

Structure and Infrastructure Engineering

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2015) Lifetime seismic performance assessment for chloridecorroded reinforced concrete buildings, Structure and Infrastructure Engineering: Maintenance, Management, Life-Cycle Design and Performance, 11:3, 345-362,The main aim of this paper was to build an estimating procedure based on the static nonlinear analysis (pushover analysis) such that structural engineers can evaluate the seismic performance of a deteriorating reinforced concrete (RC) building. For engineers' convenience, this paper suggests the probabilistic deterioration prediction model and the visual estimation of deterioration degree to evaluate corrosion-induced weight loss of reinforcing steel bars. In addition, flexural and shear capacity models for a corroded column or beam are proposed and verified by full-scale corroded beam specimens, allowing engineers to simulate its nonlinear mechanical behaviour. This paper incorporates these mechanical models of corroded members into the static nonlinear analysis to construct a procedure for assessing the seismic performance of a deteriorating RC building. An elementary school at Lanyu Island, Taitung, Taiwan, is used as an example and its lifetime seismic performance is identified utilising the proposed approach.

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“…The effectiveness of service life predictions in reinforced concrete (RC) structures subjected to corrosion induced deterioration can be enhanced with accurate corrosion monitoring and strength degradation evaluation strategies. As a step towards this, numerical studies [1][2][3][4][5][6][7][8][9][10], and analytical corrosion models [11][12][13] coupled with service life prediction models [14][15][16][17][18][19] were developed. Experimental investigations were also performed to examine the efficacy of the numerical and analytical studies [20,21].…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of multi-physics numerical model in simulating accelerated corrosion with spatial and temporal non-uniformity

Shetty¹,

Banerjee²,

Tallur³

et al. 2022

Surf. Topogr.: Metrol. Prop.

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This study is motivated by the need to develop an efficient numerical model to simulate non-uniform interfacial degradation of reinforcing steel in concrete in an accelerated corrosion setup considering the influence of differential aeration, moisture and conductivity. In this study, a multi-physics finite element (FE) model is presented to simulate spatially and temporally non-uniform surface topography of corroding steel with rust layer, and eliminates the assumption of uniform mass loss and its linear variation with time as per available literature that uses classical approach of Faraday’s law. The model is validated experimentally with accelerated corrosion setup. Unlike previous studies, pore saturation (PS) is continuously monitored and its existing experimental correlations with conductivity and oxygen diffusivity are adopted so that the model can be extended to simulate natural corrosion to enhance the accuracy of service life predictions. These evaluations can be made completely nondestructive and in real-time eliminating the challenges in capturing the influence of environment by the use of alternative parameters such as relative humidity from real climate change predictions. The key findings from the investigation reveal that incorporating local environmental parameters measured in-situ allows for the model to naturally evolve with anodic and cathodic locations on steel surface avoiding the need to assume predefined locations. It is envisioned that the developed multi-physics FE model can be used as a reliable substitute to accelerated corrosion experiment which is frequently used for durability studies of corroding reinforced concrete (RC) members. It is shown that the daily and cumulative mass loss evaluated from the degraded surface topography of the corroded rebar using the simulated model are in good agreement with those evaluated experimentally. Further, the maximum pit depth evaluated from the simulated surface is validated that has valuable applications in estimating degraded strength of corroding steel and service life of RC members.

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Analysis of lifetime losses of low-rise reinforced concrete buildings attacked by corrosion and earthquakes using a novel method

Cited by 11 publications

References 19 publications

Analysis of time-dependent reliability of degenerated reinforced concrete structure

Analysis of time-dependent reliability of degenerated reinforced concrete structure

Lifetime seismic performance assessment for chloride-corroded reinforced concrete buildings

Effectiveness of multi-physics numerical model in simulating accelerated corrosion with spatial and temporal non-uniformity

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