International Journal on Science and Technology

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A Widely Indexed Open Access Peer Reviewed Multidisciplinary Bi-monthly Scholarly International Journal

Call for Paper Volume 17 Issue 1 January-March 2026 Submit your research before last 3 days of March to publish your research paper in the issue of January-March.

Comparative Study Of RC Column With RC Jacketing And FRP Jacketing

Author(s) Ms. Rasika Raju Varak, Prof. Vidula R Waskar-Patil, Prof. Devashish Chauhan, Prof. Vivek Suryawanshi-Patil
Country India
Abstract Retrofitting of existing reinforced concrete (RC) structures has become increasingly essential due to ageing infrastructure, evolving seismic design requirements, and performance deficiencies identified during structural assessments. Among the various strengthening methods, RC jacketing and fibre-reinforced polymer (FRP) wrapping are two of the most extensively applied techniques for enhancing the performance of RC columns. This study provides a detailed comparative investigation of these methods by examining cost implications, site feasibility, labour requirements, strength enhancement, spatial constraints, durability, and compliance with seismic provisions of IS 1893:2016 (Part I) and the FRP strengthening guidelines specified in ACI 440.2R-17.
Analytical modelling and performance evaluation were carried out using ETABS software to quantify improvements in axial load capacity, confinement, and ductility for each retrofitting scheme under seismic loading conditions. The results indicate that RC jacketing, while cost-effective and structurally robust, demands significant labour, formwork, curing time, and increased dimensional footprint, limiting its suitability in congested sites. FRP wrapping, by contrast, provides rapid installation, lower disruption to existing operations, and minimal dimensional increase, making it advantageous in constrained environments and for columns where added thickness must remain within acceptable limits. Durability analysis further highlights the superior corrosion and environmental resistance offered by FRP composites. ETABS simulation results confirm that both techniques enhance seismic performance, though FRP systems demonstrate higher efficiency in confinement and ductility enhancement due to their superior strength-to-weight ratio and uniform confinement characteristics. Overall, the study concludes that while both methods significantly improve the structural behaviour of RC columns, FRP wrapping offers notable advantages in terms of feasibility, durability, and seismic performance, particularly in regions with stringent seismic demands.
Keywords Retrofitting, RC Column, RC Jacketing, FRP Jacketing, Seismic Strengthening, ETabs, Durability.
Field Engineering
Published In Volume 17, Issue 1, January-March 2026
Published On 2026-01-16

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