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Mise à l’échelle de colonnes en béton armé soumises à des efforts cycliques : préparation d’un programme expérimental

Beauvois, François

(2020)

Details

Supervisors

Saraiva Esteves Pacheco De Almeida, João ; Doneux, Catherine

Faculty

Ecole polytechnique de Louvain

Degree label

Master [120] : ingénieur civil des constructions

Abstract

enThis master thesis studies the effects of scaling in the case of square reinforced concrete columns. In this study 8 columns were built and tested at the "Laboratoire d'Essais Mécaniques, Structures et Génie Civil" (LEMSC): two prototypes (scale 1:1), three models at medium scale (scale 3:4) and three models at small scale (scale 1:2). All six models are geometrically similar to the prototypes. The columns were subjected to a cyclic and quasi-static horizontal loading at their top. In both sets of models, the same parameters were modified, as reinforcement bars diameter or maximum size of aggregates in concrete. The objective is to characterize their influence on the cracking pattern and on steel-concrete interaction, or in a more general way on the force-displacement behavior and type of failure of the columns. This work includes a literature review, details on the design and on the experimental program and finally ends with a first analysis of the results. This work has been done in partnership with the master thesis of Marie-Joy de Crombrugghe, which will be submitted in January. The tests were carried out in collaboration with the master thesis of Matthieu Dayez and Timothée Mennig: “Resistance to a vertical impact of reinforced concrete columns subjected to progressive collapse”.