Eslam Abd-El-Nabi, Arafa El-Helloty, Aymen Summra and Mahmoud Hassan Mahmoud
In this study, the effect of the column’s cross-section shape as a design parameter on resisting blast loads in reinforced concrete (RC) buildings was numerically investigated. To…
Abstract
Purpose
In this study, the effect of the column’s cross-section shape as a design parameter on resisting blast loads in reinforced concrete (RC) buildings was numerically investigated. To try to give a guideline to the design engineer about the best columns’ cross-section shape when designing an RC building that is more vulnerable to blast loads.
Design/methodology/approach
The finite element (FE) analysis was conducted for three RC buildings with different cross-section shapes of columns but with the same area and axial load capacity. The FE analysis was carried out using the Coupled Eulerian-Lagrangian (CEL) in Abaqus/CAE software. The effect of the blast loads resulting from the explosion of 50, 150, and 500 kg TNT bombs with a standoff distance of 3 m on all buildings was investigated.
Findings
The Findings showed that large TNT charges of more than 500 kg with a standoff distance of less than 3 m cause catastrophic damage to RC columns of any cross-section-shaped. Also, RC columns with circular cross-section shapes have the best resistance to blast loads, while RC columns with rectangular sections have the worst resistance.
Originality/value
The CEL technique was used to investigate the effect of columns’ cross-section shape on resisting blast loads on full-scale RC buildings. Also, this research gives a guideline to the design engineer about the best columns’ cross-section shape when designing an RC building that is more vulnerable to blast loads.