State-of-the-art review of the reliability evaluation of concrete beams exposed to fire

Author:

Coelho TulioORCID,Diniz SofiaORCID,Rodrigues Francisco,Van Coile RubenORCID

Abstract

PurposeThis paper aims to investigate the state of the art for the reliability evaluation of reinforced concrete beams in a fire situation. Special emphasis is placed on addressing which parameters were considered probabilistically or deterministically, the prescribed probabilistic models for the assumed stochastic variables, the treatment of the heat transfer mechanism, the quantification of the structural fire performance and the assumed target reliability levels.Design/methodology/approachResearch papers were identified through a search on the Web of Science, Google Scholar and detailed searches within the journals Journal of Structural Fire Engineering, Fire Technology and Fire Safety Journal, supplemented with references known by the authors.FindingsConsidering the state-of-the-art review, gaps in the literature are identified related to (1) the probabilistic evaluation of shear capacity for standard fires and parametric fires, and bending capacity for parametric fires, (2) the absence of reference fragility curves for immediate design application/code calibration and (3) the specification of target safety levels for reliability-based design.Originality/valueThe lack of research papers gathering studies on the reliability of reinforced concrete beams in fire situation makes it difficult to further develop research in the area. The value of this work lies precisely in the collection of the basic information, making it possible to identify gaps to be addressed in future research and the suggestion of a research framework.

Publisher

Emerald

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Reference45 articles.

1. Quantification of model uncertainties for reinforced concrete columns subjected to fire;Fire Safety Journal,2019

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3. Analysis of residual load-carrying capacity and reliability of RC beams after exposure to fire;Journal of Harbin Engineering University,2007

4. Bending reliability of RC beam after fire exposure;Journal of Harbin Engineering University,2009

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