Statistical Review of the Fire Resistance of Concrete Columns

Buch, Shujaat Hussain; Sharma, Umesh Kumar

doi:10.1007/s13369-022-07245-y

Cited by 3 publications

(2 citation statements)

References 50 publications

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“…Concrete is the most commonly employed material for the construction of multi-story structures, globally [1]. Among the various potential hazards, fire poses a significant threat to reinforced concrete buildings, which can cause substantial damage [2].…”

Section: Introductionmentioning

confidence: 99%

eta-Analysis Of Code-Based Design Methods To Quantify The Fire Resistance Ratings Of Concrete Columns

Mahadev Sitaram,

Rush,

Stratford

2023

Proceedings of the 11th International Conference on Fracture Mechanics of Concrete and Concrete Structures

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The design approaches of reinforced concrete (RC) columns are well understood at ambient temperature, and experimental test results correlate well with methods to investigate the strength capacity and failure criteria/modes of structural elements; however, this is not the case in fire scenarios. Using a meta-analysis, this study examines and evaluates the statistical reliability of six distinct methods/tabular guidelines from five countries' fire-resistant design concepts and procedures. In addition to this, the historical development of guidelines was emphasized. Meta-analysis is a method that examines a large dataset to determine the general trend of factors influencing the same object. In this investigation, 175 full-scale concrete column experiments were collected from around the world to determine their fire resistance capacity. It was discovered that all methods and tabular guidelines are founded on a specific set of experiments, and their applicability to a newly available set of experiments is beset with uncertainty. Method A of Eurocode (EN 1992(EN -1-2:2019 is relatively accurate in predicting the fire resistance rating (FRR) for up to 240 minutes, whereas Method B is accurate for up to 150 minutes. The Chinese method (DBJ/T 15-81) is regarded as quite effective for the set of experiments from which the Eurocode equation was derived, but the accuracy of its predictions for other sets of experiments was highly variable. The ACI 216.1 and IS 1642 methods appear to underestimate the FRR in most experiments. Therefore, it is concluded that either the limitations of these guidelines must be modified, or new equation/tabular guidelines are required in place of newly available experiment sets.

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Section: Introductionmentioning

confidence: 99%

eta-Analysis Of Code-Based Design Methods To Quantify The Fire Resistance Ratings Of Concrete Columns

Mahadev Sitaram,

Rush,

Stratford

2023

Proceedings of the 11th International Conference on Fracture Mechanics of Concrete and Concrete Structures

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“…The findings demonstrate that the prediction model can directly anticipate the ultimate load and deflection of RC columns at elevated temperatures. To determine the resistance of fire in reinforced concrete columns, Shujaat H. Buch and Umesh K. Sharma created a model that took into account a number of important factors, such as the influence of premature concrete spalling during a fire, the impact of local longitudinal reinforcement buckling caused by explosive spalling, and the significance of reinforcement configuration [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Heat Dissipation and Postfire Structural Performance of a Reinforced Concrete Column with Biomimicked Geometry

Vishal

Satyanarayanan

2022

Fire

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Cactus plants are prevalent in hot terrain locations. The spines in the cactus plants have an important function in preventing water evaporation. The strong pointed spines serve to distribute heat and prevent internal moisture loss owing to high heat. This paper addresses the biomimicking of a cactus plant to a reinforced concrete column. Columns are one of the most predominant elements in a structure and are responsible for maintaining the stability of the structure. Under the occurrences of fire, columns are the most affected, and the failure of the same could eventually steer to global collapse of the structure. In this study, various geometries were adopted based on the cactus plant, and the heat dissipation characteristics were studied. Finite element analysis was used to determine the optimal form based on the heat dissipation. The optimized shape was tested experimentally using a high-temperature localized heating element. Five column specimens were considered for experiments and named C (conventional nonheated column), C1 (conventional heated column), C2 (mimicked column), C3 (mimicked column with rebar in cone), and C4 (mimicked column with rebar in cone (quenching)). The heat-dissipating nature was observed, and the structural aspects were tested aftermath. The results reveal that the quenched specimen depicts better heat dissipation than the other specimens and eventually maintains the stability of the specimen throughout the height.

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Analysis of hydrocarbon fire-exposed cold-formed steel columns

Al-Kaseasbeh

2023

Results in Engineering

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Statistical Review of the Fire Resistance of Concrete Columns

Cited by 3 publications

References 50 publications

eta-Analysis Of Code-Based Design Methods To Quantify The Fire Resistance Ratings Of Concrete Columns

eta-Analysis Of Code-Based Design Methods To Quantify The Fire Resistance Ratings Of Concrete Columns

Experimental Investigation on the Heat Dissipation and Postfire Structural Performance of a Reinforced Concrete Column with Biomimicked Geometry

Analysis of hydrocarbon fire-exposed cold-formed steel columns

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