Time-dependent Seismic Performance Assessment of Corroded Reinforced Concrete Frames

Ghanooni-Bagha, Mohammad; Zarei, Sajad; Savoj, Hamid Reza; Shayanfar, Mohsen Ali

doi:10.3311/ppci.12653

Cited by 7 publications

(2 citation statements)

References 22 publications

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“…Corrosion of RC frames is another cause that impacts the lifetime of buildings. Such frames do not withstand calamities [2]. Besides the conceptual fact of concrete being the material that is incombustible there arise several inconsistencies in the concrete under high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of RC Elements Under High-Temperature Conditions with different Locations: Analytical Investigation

Parthasarathi

Satyanarayanan

Prakash

et al. 2023

Preprint

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Developments in the field of construction has taken an encompassing transformation in the design of structures. Concrete technology has also seen several advancements with the inclusion of reinforcement materials like steel and iron in them which are called as the (RC) Reinforced Concrete. Amidst several developments in the technology of the structural design for a quality construction, RC structural element failure under higher temperature with load remains as one of the most critical mechanisms to be addressed with the recent advancements. There are several methods and studies that try to rule out such failure mechanism with certain improvised methodologies in the fire resistivity behavior of concrete structures. Nevertheless, only a few studies have concentrated on the interaction between the structural and functional elements in the emergence of fire. Considering this, the present work concentrates on the behavior of RC infilled frames with elements like beam, column and beam column joints under higher temperatures and load for which the ABAQUS finite element software is used. The model is simulated with a transient state analysis and characteristics like deflection, stiffness, principal stress are studied for the RC beam, column and beam column joints with varied temperature and load. The outcome of the simulation shows the effect of load and temperature on RC elements and the respective performance graphs are plotted.

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Section: Introductionmentioning

confidence: 99%

Evaluation of RC Elements Under High-Temperature Conditions with different Locations: Analytical Investigation

Parthasarathi

Satyanarayanan

Prakash

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Bru et al (2018) assess the buildings built in 1960 in Spain near the coast using nonlinear static analysis considering far-field effects of corrosion. Ghanooni-Bagha et al (2019) investigated the corrosion effect on capacity curves of RC sections and considered its effects on the damage state of structure with the use of incremental dynamic analysis.…”

Section: Introductionmentioning

confidence: 99%

Collapse assessment of high-rise reinforced concrete building under chloride induced pitting corrosion subjected to near-field and far-field ground motions

Jafary,

Zaherbin,

Ghanooni-Bagha

et al. 2023

Sādhanā

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Reinforced concrete structures are vulnerable to corrosion considering its influences on the performance of the structure during the possible earthquakes. Corrosion mostly occurs due to two main reasons: chloride and carbon dioxide penetration into the concrete that leads to the chemical reaction between them and concrete compositions. Chloride diffusion into the concrete brings about rebar pitting, while carbonation-induced corrosion causes uniform corrosion of rebars. In the present study, chloride-induced corrosion was investigated. In this regard, the Haselton 20story reinforced concrete model was chosen. At first, corrosion initiation time was determined by probabilistic Monte-Carlo Simulation methods for three water to cement ratios of 0.4, 0.45, and 0.5. Next, the effects of corrosion on the mechanical properties of the steel and the concrete were taken into account by using equations available in the literature. Seismic performance of corroded structure was evaluated by conducting Non-linear static and incremental dynamic analysis (IDA).FEMA p695 far-field and near-field ground motions were selected for dynamic analysis. The reduction of overstrength and ductility over 40 years after corrosion initiation was calculated. The results showed that ductility was more affected by corrosion rather than overstrength. The probabilities of the structure being at the four damage states of slight, moderate, extensive, and complete damage were estimated based on fragility curves obtained from IDA. It was observed that ten years after initiation of corrosion there is only a slight difference in the probability of damage states and after that considerable distinction was observed, especially in water to cement ratio of 0.5. Moreover, it was seen that exceeding selected damage states under non-pulse-like near field ground motions is more likely.

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Influence of chloride corrosion on tension capacity of rebars

Ghanooni-Bagha¹

2021

J. Cent. South Univ.

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Time-dependent Seismic Performance Assessment of Corroded Reinforced Concrete Frames

Cited by 7 publications

References 22 publications

Evaluation of RC Elements Under High-Temperature Conditions with different Locations: Analytical Investigation

Evaluation of RC Elements Under High-Temperature Conditions with different Locations: Analytical Investigation

Collapse assessment of high-rise reinforced concrete building under chloride induced pitting corrosion subjected to near-field and far-field ground motions

Influence of chloride corrosion on tension capacity of rebars

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