Fast Assessment of Post-Fire Residual Strength of Reinforced Concrete Frame Buildings Based on Non-Destructive Tests

Alcaíno, Pablo; María, Hernán Santa; Cortés, Michael; Alfaro, Jennyfer

doi:10.3390/icem18-05394

Cited by 2 publications

(2 citation statements)

References 10 publications

(10 reference statements)

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“…It would be essential to develop guidelines/methodology for assessment of fire-ravaged concrete structures for Indian scenarios. There have been few reports of evaluation of the condition of the fire-affected members [82] and structures [83] in India as well as abroad [84][85][86]. Further such studies are indicated for India in coming years.…”

Section: Assessment Of Fire-ravaged Concrete Structures With Non-destmentioning

confidence: 99%

Fire Resistance and Elevated Temperature in Reinforced Concrete Members: Research Needs for India

Dauji

Kulkarni

2021

J. Inst. Eng. India Ser. A

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Fire and elevated temperature are important considerations for design of concrete structures, for both normal and nuclear facilities. In India, the present design guidelines for concrete subjected to fire and elevated temperature are limited to prescriptive minimum dimension and minimum cover. The other approach suggested is fire test based, and being resource intensive, is considered only for special cases of design. The various provisions of Indian standards are discussed and compared to the international standards. Fire test data for concrete/reinforcement properties at elevated temperature for Indian materials are scarce, and hence, the calculation methods are difficult to apply for Indian concrete. Validation of such methods for India is required, which again can only happen after generation of adequate database. The article highlights the present research needs for fire design of Indian concrete, along with development of analysis methodologies/guidelines for fire design of concrete structures, assessment of fire-affected concrete structures, and combination of the fire/temperature load with other extreme loads such as impact, seismic load, or missile load using advanced approaches. This article could serve as reference for designers as well as the starting point for several research initiatives in India and thereby is expected to improve the state of the art of fire design of concrete structures in India in the long term.

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Section: Assessment Of Fire-ravaged Concrete Structures With Non-destmentioning

confidence: 99%

Fire Resistance and Elevated Temperature in Reinforced Concrete Members: Research Needs for India

Dauji

Kulkarni

2021

J. Inst. Eng. India Ser. A

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“…It is well known that concrete at elevated temperature brings a significant loss of mechanical properties such as compressive strength, tensile strength, and elastic modulus. 1,2 The strength assessment of concrete for fire-damaged concrete structures is important for a decision of remodeling, repairing, strengthening, or demolishing of concrete structures. Therefore, a reasonable strength assessment of concrete after subjected to fire is very important work for structural sustainability of the fire-damaged concrete structures.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of residual strength with ultrasonic pulse velocity relationship for concrete exposed to high temperatures

Choi

Kang

Hwang

et al. 2021

Advances in Mechanical Engineering

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This paper presents the results of an experimental investigation on the relationship between strength and ultrasonic pulse velocity (UPV) of concrete exposed to high temperature, especially for a decision of building remodeling of concrete structures. The experiments were conducted at three different initial compressive strength levels for temperature up to 800°C. UPV, Compressive, and splitting tensile tests and UPV measurements were performed for unheated and heated concrete specimens. The measured UPV values in the present work were correlated with compressive and tensile strengths to estimate the strength of concrete. Based on the results, two linear equations for predicting compressive and tensile strength of concrete at elevated temperatures using UPV have been proposed. It is found that the difference of initial compressive strength of concrete does not have a significant effect on the strength reduction ratio after exposed to high temperatures. In addition, the reduction factors of compressive and tensile strengths in the present work do not well comply with the values of suggested by EN 1992-1-2.

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Fast Assessment of Post-Fire Residual Strength of Reinforced Concrete Frame Buildings Based on Non-Destructive Tests

Cited by 2 publications

References 10 publications

Fire Resistance and Elevated Temperature in Reinforced Concrete Members: Research Needs for India

Fire Resistance and Elevated Temperature in Reinforced Concrete Members: Research Needs for India

Evaluation of residual strength with ultrasonic pulse velocity relationship for concrete exposed to high temperatures

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