Blast-Induced Failure of Steel Base Plate-Column Connections | ||
| Journal of Engineering Advances and Technologies for Sustainable Applications | ||
| Volume 1, Issue 3, July 2025, Pages 15-26 PDF (1.77 M) | ||
| Document Type: Original research paper | ||
| DOI: 10.21608/jeatsa.2025.440929 | ||
| Authors | ||
| Ahmed M. Abd-El-Latif; Kareem Mohamed Salaheldin | ||
| Giza Engineering Institute | ||
| Abstract | ||
| Base plate-column connections BPCC are critical structural elements that transfer loads between various structural components. Their performance under extreme loading conditions, such as blast, is paramount for ensuring structural integrity. This study utilizes finite element analysis (FEA) to numerically examine the dynamic response of steel- to-concrete bolted connections SCBC and steel-to-steel welded connections SSWC subjected to blast loads of varying intensities. A comprehensive three-dimensional finite element model was developed using the Coupled Eulerian-Lagrangian (CEL) method within the ABAQUS/CAE software. Realistic material properties were assigned to the steel, concrete, and TNT explosive components to accurately simulate the structural response. The model was subjected to blast loads generated by TNT charges of 200 kg and 500 kg, positioned at a standoff distance of 2.0 meters. The numerical simulations yielded valuable insights into the deformation patterns, stress distributions, and failure modes of the connections under blast loading. The results demonstrated that the connection's response was significantly influenced by the magnitude of the blast load and the connection's rigidity. This research contributes to a deeper understanding of the blast resistance of steel-to-steel welded connection and steel-to- concrete bolted connections. The findings can be leveraged to inform design guidelines and mitigation strategies for structural systems exposed to blast threats. | ||
| Keywords | ||
| Coupled Eulerian-Lagrangian; blast loading; Connections | ||
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