Experimental analysis of fiber reinforced cementitious matrix (FRCM) confined masonry columns

Zucchini, Lorenzo (2011) Experimental analysis of fiber reinforced cementitious matrix (FRCM) confined masonry columns. [Laurea specialistica], Università di Bologna, Corso di Studio in Ingegneria civile [LS-DM509]
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The increasing use of Fiber Reinforced methods for strengthening existing brick masonry walls and columns, especially for the rehabilitation of historical buildings, has generated considerable research interest in understanding the failure mechanism in such systems. This dissertation is aimed to provide a basic understanding of the behavior of solid brick masonry walls unwrapped and wrapped with Fiber Reinforced Cementitious Matrix Composites. This is a new type of composite material, commonly known as FRCM, featuring a cementitious inorganic matrix (binder) instead of the more common epoxy one. The influence of the FRCM-reinforcement on the load-carrying capacity and strain distribution during compression test will be investigated using a full-field optical technique known as Digital Image Correlation. Compression test were carried on 6 clay bricks columns and on 7 clay brick walls in three different configuration, casted using bricks scaled respect the first one with a ratio 1:2, in order to determinate the effects of FRCM reinforcement. The goal of the experimental program is to understand how the behavior of brick masonry will be improved by the FRCM-wrapping. The results indicate that there is an arching action zone represented in the form of a parabola with a varying shape according to the used configuration. The area under the parabolas is considered as ineffectively confined. The effectively confined area is assumed to occur within the region where the arching action had been fully developed.

Tipologia del documento
Tesi di laurea (Laurea specialistica)
Autore della tesi
Zucchini, Lorenzo
Relatore della tesi
Correlatore della tesi
Corso di studio
Ordinamento Cds
Parole chiave
Brick masonry; Fiber reinforced cementitious matrix; Digital image correlation; FRCM-reinforced masonry; Axial compression test.
Data di discussione della Tesi
3 Ottobre 2011

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