Numerical Evaluation of the Strength of Concrete Columns with Different Types of Confinement

Title

Numerical Evaluation of the Strength of Concrete Columns with Different Types of Confinement

Creator

Joy, P.V.; Alex, Jacob

Description

The structural performance of reinforced concrete (RC) columns is significantly influenced by their cross-sectional shape and the confinement methods employed. Confinement is a widely adopted technique to enhance the load-carrying capacity and ductility of concrete columns, thereby improving their structural performance and seismic resistance. A large number of experimental and numerical studies are available to demonstrate the confinement effect of columns. This study presents a numerical evaluation of the strength of circular (316 mm diameter), square (280 280 mm), and rectangular (300 260 mm) RC columns confined by using various techniques. Modelling and analysis of columns are done in Ansys software. The confining strategies, adopted are varying the spacing of lateral ties, wrapping with different types of Fiber Reinforced Polymers (FRPs) and wrapping with FRP combined with lateral ties. The results show significant enhancement of compressive strength in the confined columns. Among the adopted confining strategies, CFRP with lateral ties gives maximum percentage strength enhancement (13.4%). The comprehensive understanding of the behaviour of the confined columns under axial load further leads to the study of confined columns under lateral and dynamic loads. This would contribute the safety and resilience of structures constructed specially in earthquake-prone regions. The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.

Source

Lecture Notes in Civil Engineering;Volume;741 LNCE;pp.127-135

Date

01-01-2026

Publisher

Springer Science and Business Media Deutschland GmbH

Subject

Columns; Confinement; FRP; Lateral ties; Numerical modeling; Seismic performance; Strength

Coverage

Joy P.V., Department of Civil Engineering, Christ University, Bangalore, India; Alex J., Department of Civil Engineering, Christ University, Bangalore, India

Rights

Restricted Access; Hardcopy may be available in the library

Relation

ISSN: 23662557; ISBN: 978-303204148-7;

Format

online

Language

English

Type

Conference paper

Identifier

https://doi.org/10.1007/978-3-032-04149-4_11

https://www.scopus.com/pages/publications/105031688467?origin=resultslist