Probabilistic structural performance of RC frames with corroded smooth bars subjected to near- and far-field ground motions

Pugliese, Francesco; Sarno, Luigi Di

doi:10.1016/j.jobe.2022.104008

Cited by 11 publications

(8 citation statements)

References 61 publications

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“…The definition and the statistical distribution of each parameter in Eq. 23 can be found in [12,52]. The mean value of results, 16.7 years, is taken as the time of corrosion initiation for the RC structure.…”

Section: Gmm-based Methods For Time-varying Mechanical Properties Of ...mentioning

confidence: 99%

“…While this method has achieved satisfactory results in the assessment of the load-bearing capacity, their finite element analysis still showed discrepancies with experimental results when it comes to deformation capacity, mainly because they did not consider the degradation of ductility in corroded rebar units. Thus, there is still a need for a material-level assessment of residual mechanical properties of corroded rebar, especially in terms of deformation capacity [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Tensile behaviour of pitting corroded steel bars: Laboratory investigation and probabilistic-based analysis

Liu,

Yuan,

Miao

et al. 2024

Construction and Building Materials

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Section: Gmm-based Methods For Time-varying Mechanical Properties Of ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tensile behaviour of pitting corroded steel bars: Laboratory investigation and probabilistic-based analysis

Liu,

Yuan,

Miao

et al. 2024

Construction and Building Materials

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“…Furthermore, the same authors [28] explored mainshock-aftershock ground motion sequences and exposure to different levels of corrosion to estimate the seismic fragility of existing RC buildings. In reference [29], the authors discussed the impact of near-field and far-field records on corroded RC frames. All the above studies conclude that reinforcement corrosion is a major parameter that influences the degradation of RC structures and significantly affects their seismic capacity.…”

Section: Past Research On the Fragility Assessment Of Corroded Rc Str...mentioning

confidence: 99%

Seismic Fragility Curves of RC Buildings Subjected to Aging

Diamantopoulos,

Achmet,

Stefanidou

et al. 2024

GeoHazards

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A large number of existing reinforced concrete (RC) buildings have surpassed their anticipated service life and show signs of degradation due to aging; this degradation is a function of the construction practices adopted in the past as well as environmental conditions. This paper discusses seismic fragility and the risk assessment of RC structures, emphasizing the impact of corrosion due to concrete aging and the associated deterioration mechanisms. The literature on this topic is critically reviewed, and a methodology for studying the seismic fragility of deteriorated RC buildings is proposed. As a case study, a four-story RC building designed according to contemporary code provisions is examined. The investigation encompasses the derivation of fragility curves, considering critical parameters such as the corrosion rate, the initiation time, and the cover depth. The proposed approach enables the evaluation and quantification of the impact of corrosion mechanisms on the seismic performance of buildings.

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“…To compute the deterioration of concrete cover due to corrosion, Coronelli and Gambarova [81] proposed a reduced compression strength of concrete based on the modified compression field theory of Vecchio and Collins [82]. Several authors adopt that model [4], [8], [10], [14], [17], [53], [60], [83]. Chen [84] proposed a linear softening in the stressstrain relationship to model concrete cracking.…”

Section: Concrete Damage Model After Crackingmentioning

confidence: 99%

“…Thus, as corrosion includes several uncertainties, the deterministic approach to assessing the deterioration of RC/PSC structures can lead to very conservative structural responses, which aim not to impair structural safety but can increase maintenance costs [8]. Therefore, in this context, probabilistic approaches have been widely used to properly assess the service life of these structures and propose appropriate intervention strategies.…”

Section: Introductionmentioning

confidence: 99%

Probabilistic assessment of corroded concrete structures – systematic literature review

Moreira,

Bittencourt,

Carvalho

et al. 2024

Rev. IBRACON Estrut. Mater.

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The evaluation of service conditions of concrete structures has still been carried out through implicit knowledge based on the expertise and knowledge of inspectors, who classify structures based on subjective criteria. The main degradation mechanism of reinforced and prestressed concrete structures is the corrosion of steel reinforcements, with expressive maintenance and repair costs. The phenomenon of corrosion in concrete structures has a complex behavior and presents several uncertainties, and deterministic analyzes can produce very conservative responses, which can unnecessarily increase maintenance costs, thus justifying probabilistic approaches. This article then presents a systematic literature review of articles that address the evaluation of concrete structures under reinforcement corrosion using a probabilistic approach. In this regard, 94 journal articles obtained through an appropriate review protocol were reviewed. Thus, the summary of the main proposed methodologies was carried out, as well as the identification of research gaps on the subject.

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Probabilistic structural performance of RC frames with corroded smooth bars subjected to near- and far-field ground motions

Cited by 11 publications

References 61 publications

Tensile behaviour of pitting corroded steel bars: Laboratory investigation and probabilistic-based analysis

Tensile behaviour of pitting corroded steel bars: Laboratory investigation and probabilistic-based analysis

Seismic Fragility Curves of RC Buildings Subjected to Aging

Probabilistic assessment of corroded concrete structures – systematic literature review

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