Experimental study of beam-column joints in axially loaded RC columns strengthened by steel angles and strips

Jose M. Adam, Ester Gimenez, Pedro A. Calderon, Francisco J. Pallares and Salvador Ivorra

Abstract

The strengthening of reinforced concrete (RC) columns by steel angles and strips (steel cage) is one of various techniques available to increase ultimate column load. Different authors have shown the influence of the beam-column joint on the behaviour of columns strengthened by steel cages. This paper presents an experimental study carried out at the Universidad Politecnica de Valencia with the aim of analysing two different techniques to solve the strengthening close to the joint and the influence on the behaviour of RC columns strengthened steel cages. The ultimate loads obtained in the laboratory tests for these two techniques are compared to that specified by Eurocode 4.

Key Words

RC columns; strengthening; retrofitting; steel cage; beam-column joint; experimental study.

Address

Jose M. Adam?, Ester Gimenez and Pedro A. Calderon : ICITECH, Departamento de Ingenieria de la Construccion y Proyectos de Ingenieria Civil, Universidad Politecnica de Valencia. Camino de Vera s/n, 46071 Valencia, Spain Francisco J. Pallares : Departamento de Fisica Aplicada, Universidad Politecnica de Valencia, Camino de Vera s/n, 46071 Valencia, Spain Salvador Ivorra : Departamento de Ingenieria de la Construccion, Obras Publicas e Infraestructura Urbana, Universidad de Alicante. Apartado de Correos 99, 03080 Alicante, Spain

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