Finite Element Analysis of Steel-Jacketed Reinforced Concrete Columns Under Axial Loads | ||
| Journal of Engineering Advances and Technologies for Sustainable Applications | ||
| Volume 1, Issue 4, October 2025, Pages 21-29 PDF (1.01 M) | ||
| Document Type: Original research paper | ||
| DOI: 10.21608/jeatsa.2025.459150 | ||
| Abstract | ||
| This research presents a finite element analysis of reinforced concrete (RC) columns strengthened using steel jackets to improve axial load capacity. The study models various configurations of steel-jacketed columns, focusing on the effect of lacing plates with or without batten plate connections between two steel C-channels surrounding the RC columns. Utilizing Finite Element Analysis (FEA) in Abaqus/CAE, six column models were examined, each with a cross-section of 300x300 mm and a height of 2500. The models included both partially and fully enclosed steel jackets, with varying numbers of lacing and batten plates. Results indicated that steel jacketing of RC columns significantly enhanced load- bearing capacity. Using a relatively rigid steel jacket of c- channels connected with lacing plates could increase the failure load by 37.96%. Also, Notably, a fully enclosed steel jacket with a single large plate around the column yielded the highest performance, improving failure load capacity by up to 75.92% over unstrengthened columns. These findings underscore the structural benefits of specific steel-jacketing configurations in enhancing the durability and load resistance of RC columns. | ||
| Keywords | ||
| RC columns; Steel jacket; Strengthening of RC columns; Numerical analysis; Finite element analysis | ||
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