Prediction of Behaviour and Failure of Steel Columns Subjected to Blast Followed by Fire Induced by Explosion

Al-Thairy, Haitham

doi:10.1007/s13296-021-00514-w

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…The framework was verified for a number of examples, including an isolated column subject to explosion followed by fire. Similarly, the combined effects of blast and fire and the PBF scenario of steel frames and isolated steel columns were investigated in various studies [3][4][5][6][7][8][9]. In some other studies [10], the progressive failure of steel framed structures was studied due to the combined effects of blast and fire.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Study on Fire Resistance of Blast Damaged Reinforced Concrete Columns

Mudragada,

Agrawal,

Bhargava

2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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An explosion or blast can trigger a subsequent fire in the building structure. In the case of reinforced concrete (RC) structures, blast loading can result in relatively large residual deformations and locked in stresses in the affected members prior to fire exposure. Such residual deformations and locked in stresses can have a detrimental effect on the fire performance of RC members. Accordingly, this paper presents results from a numerical study on fire resistance of blast damaged RC columns. A three dimensional numerical model of an RC column was developed using general-purpose finite element software ABAQUS and validated against data from the experimental fire resistance tests. The developed continuum-based finite element model of RC column was subjected to blast loads of distinct scaled distances simulating the far-field and near-field scenario. Further, the blast-damaged RC columns were exposed to a standard fire, and calculated the fire resistance period corresponding to each blast case. Results indicate that the blast damaged RC column show a significant reduction in fire resistance period compared to the undamaged RC column.

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Section: Introductionmentioning

confidence: 99%

A Numerical Study on Fire Resistance of Blast Damaged Reinforced Concrete Columns

Mudragada,

Agrawal,

Bhargava

2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…Sun et al [17] performed experiments on Q345B steel tubes, and employed scanning electron microscopy to explore the rupturing mechanism under a microscope. In order to predict the behavior and failure of steel columns subjected to blast pressure followed by fire, Al-Thairy [18] developed a new numerical model to perform both dynamic and transient thermal analyses simultaneously using the dynamic fully coupled thermal-displacement analysis procedure within ABAQUS/explicit. And a new simplified approach was proposed for analyzing the combined effects of blast and fire on the response and critical temperature of steel columns.…”

Section: Introductionmentioning

confidence: 99%

Analysis on the Dynamic Responses of Steel Beam under the Condition of Heat and Blast Loads

Tan¹,

Li²,

Wu³

et al. 2022

IJHT

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Numerical simulation and analysis on the responses of steel beam under fire thermal load and blast load are performed using ABAQUS general finite element program. In this study, two cases with different order of applying the fire thermal load and blast load in a different order are considered: 1) when the steel beam is heated by fire first and then is impacted by blast load, the influence of the temperature on the pulse amplitude–impulse (P-I) diagrams is discussed and the saturated impulse and the minimum impulse related to temperature are analyzed. 2) when steel beam is impacted by blast loading first and then is attacked by fire, the influences of the initial static load and the pulse amplitude on the critical temperature-impulse (Tcr-I) diagrams are analyzed. The analysis results show that the higher the temperature is, the lower the impact resistance capability of steel beam is. The saturated impulse and the minimum impulse can be used to measure the impact resistance capability of steel beam. The impulse I(ηD) can be used to measure the fire resistance performance of steel beam. The blast load can obviously reduce the fire resistance capability of steel beam.

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Investigation of the post-blast fire performance of RC members

Mudragada,

Bhargava

2023

Structures

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Prediction of Behaviour and Failure of Steel Columns Subjected to Blast Followed by Fire Induced by Explosion

Cited by 3 publications

References 16 publications

A Numerical Study on Fire Resistance of Blast Damaged Reinforced Concrete Columns

A Numerical Study on Fire Resistance of Blast Damaged Reinforced Concrete Columns

Analysis on the Dynamic Responses of Steel Beam under the Condition of Heat and Blast Loads

Investigation of the post-blast fire performance of RC members

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