The Influence of Slenderness in Steel and Composite Columns under Fire Conditions

Farid, Boursas; Boufarh, Rafik; Maghaghi, Bilal

doi:10.48084/etasr.5560

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…A thermomechanical study was also carried out using the results of the thermal analysis to determine the influence of slenderness on the resistance of the steel and the partially encased profile in concrete columns under fire solicitation. The results proved that the slenderness negatively influences the fire resistance of the steel and composite columns and that the behavior of the composite columns is significantly better than that of the steel ones [14].…”

Section: Introductionmentioning

confidence: 87%

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Residual Strength and Crack Propagation of Reinforced Concrete Columns under High Temperatures

Faraj,

Almaliki

2023

Eng. Technol. Appl. Sci. Res.

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In the present study, reinforced concrete columns with dimensions of 200×200×1200 mm were tested under static loading and high temperatures. In the experimental work, square cross-section columns with compressive strength of 28 MPa were tested up to failure. Mechanical properties such as compressive strength, were examined under static load and then under temperatures such as 500 and 800 °C. Column specimens with the same geometry and with concrete covers of 10 and 17 mm were also put under test. Mode of failure, ductility, stiffness, and energy dissipation for all tested specimens are discussed. The test results showed that the strength capacity of reinforced concrete columns was affected by the column cover. The increment in temperature led to a reduction in the strength-carrying capacity of the columns and increased the axial and lateral displacements. The static compressive strength was reduced by 36.84 and 48.81% when the applied temperature was 500 and 800 °C, respectively. The stiffness of the specimen with 17 mm cover was 29.27 and 46.86% less than that of 10 mm cover for axial and lateral displacement, respectively. Also, the specimen with 10 mm cover exhibited decreased energy dissipation by 1.69 and 12.54% for axial and lateral displacement.

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Section: Introductionmentioning

confidence: 87%

“…The composite action of CFST gave more stiffness [13]. Authors in [14] simulated two columns using the finite element software SAFIR. The first was a steel profile column and the second was a Steel Profile Partially Encased in Concrete (SPPEC) column.…”

Section: Introductionmentioning

confidence: 99%

Residual Strength and Crack Propagation of Reinforced Concrete Columns under High Temperatures

Faraj,

Almaliki

2023

Eng. Technol. Appl. Sci. Res.

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“…The study suggests that FRC-infilled composite columns are a favorable choice for civil engineering structures due to their improved performance in seismic conditions. Farid Boursas, et. al.…”

Section: Components Of Composite Structuresmentioning

confidence: 99%

Comparison between RCC and Composite Buildings: A Comprehensive Review

Patidar,

Maru

2023

IJRASET

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This review paper presents a comprehensive analysis of Reinforced Concrete (RCC) and Composite buildings, evaluating their performance, design, seismic behavior, cost-efficiency, and sustainability. It outlines their distinct characteristics and structural suitability. The review examines construction methods and technology, highlighting advantages and limitations. Environmental impact, embodied energy, and recyclability are assessed for sustainable construction practices. Economic considerations encompass initial costs, maintenance, and life-cycle analysis. Seismic performance and design strategies are analyzed for resilience in seismic-prone regions. This review paper provides an in-depth analysis of various research papers associated with the topic of RCC and Composite buildings comparison and its various advancements. A thorough literature review has conducted along with analysis of previous works in this field, our study has identified conclusive outcomes from the gap of the study that form the basis of our research objectives that will offer technical insights and propose recommendations for technical research work in this field.

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Analysis of cooling rate impact on the behavior of steel and reinforced concrete beams under fire conditions

Boursas,

Boufarh,

Fezzai

2024

SEES

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This paper comprehensively investigates fire-induced structural degradation in reinforced concrete and steel beams, employing advanced thermal and mechanical analysis techniques. The study uses the finite element method and SAFIR software to conduct a sophisticated thermal analysis to assess structural performance quantitatively under complex fire scenarios. The research innovatively explores both the heating and cooling phases of fire events, revealing critical insights into material behaviour. The study provides a nuanced understanding of structural response mechanisms by adapting stress-strain curves to account for temperature-dependent variations and residual stresses. Specifically, the analysis employs parametric temperature curves from EN 1991-1-2 standard, enabling precise modelling of thermal loading conditions. A ground-breaking parametric study systematically evaluates cooling rate impacts on beam structural integrity. Key findings demonstrate that while accelerated cooling rates can initially enhance beam resistance, prolonged or non-uniform cooling phases may induce significant residual deformations and compromise structural stability. The research highlights the complex thermomechanical interactions within steel and reinforced concrete beams.

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The Influence of Slenderness in Steel and Composite Columns under Fire Conditions

Cited by 3 publications

References 13 publications

Residual Strength and Crack Propagation of Reinforced Concrete Columns under High Temperatures

Residual Strength and Crack Propagation of Reinforced Concrete Columns under High Temperatures

Comparison between RCC and Composite Buildings: A Comprehensive Review

Analysis of cooling rate impact on the behavior of steel and reinforced concrete beams under fire conditions

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