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Author(s): Patrício Rocha
Pedro Delgado
Victorino Rodrigues
Miguel Santos
António Arêde
Nelson Vila Pouca
Aníbal Costa
Raimundo Delgado
Title: Seismic rehabilitation of reinforced concrete columns
Issue Date: 2006
Abstract: The main purpose of this paper is to present an experimental campaign of different strategies forthe seismic retrofit of RC columns, comparing the obtained results with analytical methodologies,and evaluating benefits concerning their structural behaviour under the cyclic loading. Theexperimental campaign was conceived taking into account the typical constructions of theseventies, designed according to old codes without seismic considerations, and seeking the beststructural retrofit technique to enable seismic behaviour improvement with acceptable financialresources. The setup of the RC columns experimental tests was specially designed to carry outbiaxial bending with axial load, using two orthogonal and horizontal actuators and one verticalactuator (with a slide device to allow the top displacements of the column), though, at this stage,only uni-axial bending experimental results are available. The columns rehabilitation, improvingthe ductility or the strength characteristics, was obtained increasing the concrete ductilityconditions, through efficient jacketing, or increasing the amount of longitudinal and transversalsteel. The aim is, therefore, to contribute for developing and calibrating a procedure that enablesthe evaluation of the efficiency of the different retrofit solutions, their possibilities and fields ofapplication. It was also an objective of this work to explore the possibility of use this retrofittingtechniques on the improvement of buildings performance.
Subject: Engenharia estrutural, Engenharia civil
Structural engineering, Civil engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia civil
Engineering and technology::Civil engineering
Source: First European Conference on Earthquake Engineering and Seismology
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: openAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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