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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 86
Edited by: B.H.V. Topping
Paper 175

Numerical and Experimental Study of RC Columns Strengthened by Steel Jacketing

J.M. Adam1, S. Ivorra2, E. Giménez1, P.A. Calderón1 and F.J. Pallarés1

1Instituto de Ciencia y Tecnología del Hormigón, Polytechnic University of Valencia, Spain
2Departamento de Ingeniería de la Construcción, O.P. e Infraestructuras Urbanas, University of Alicante, Spain

Full Bibliographic Reference for this paper
, "Numerical and Experimental Study of RC Columns Strengthened by Steel Jacketing", in B.H.V. Topping, (Editor), "Proceedings of the Eleventh International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 175, 2007. doi:10.4203/ccp.86.175
Keywords: reinforced concrete column, retrofit, strengthening, steel jacketing, finite element.

There are different strengthening techniques for reinforced concrete (RC) columns; the more widely used being concrete jacketing, composite-based strengthening systems (FRP) and the use of steel jacketing.

Steel jacketing is one of the most common strengthening technique [1,2]. In Europe, one of the most common strengthening techniques is based on the use of steel angles and strips [3,4]

This paper presents the development of some numerical models based on the results of laboratory tests performed on axially loaded RC columns strengthened with steel angles and strips [5]. These numerical models developed with ANSYS code [6] consider the nonlinearity of the building materials and the effects of the contact interfaces between different materials [7].

The results of the finite element models accurately describe the general behaviour of the strengthened columns.

This study allows engineers to assess the relative importance of the mechanisms acting on the strengthened RC columns. Design recommendations are also provided in this paper.

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