A previous study (Del Giorgio 1990-91) proved that, under uniaxial compression, the ductility of masonry could be increased through confinement. The present research aims at investigating whether such an increase in ductility can be observed in masonry blocks subjected to an inclined stress field, whose vertical and horizontal components correspond to the axial load and the seismic action, respectively. A material characterization, aimed at selecting a material that could reproduce the actual historical masonry, was first carried out on masonry. The aim of this first part of the research was the design of a masonry specimen, suitably reproducing real historical masonries. To this end, an extensive number of mortar specimens were tested. Moreover, the design of a small masonry specimen, representing the critical portion of an actual full scale masonry, is presented and discussed. The right inclination of the stress field was determined by means of linear elastic analysis. A small concrete slab and a suitable test-loading machine were studied to simplify the application of the load on the specimens.
Reproducing Ancient Masonry for Improving Ductility: A Preliminaru Study
Elisa Sala
2006-01-01
Abstract
A previous study (Del Giorgio 1990-91) proved that, under uniaxial compression, the ductility of masonry could be increased through confinement. The present research aims at investigating whether such an increase in ductility can be observed in masonry blocks subjected to an inclined stress field, whose vertical and horizontal components correspond to the axial load and the seismic action, respectively. A material characterization, aimed at selecting a material that could reproduce the actual historical masonry, was first carried out on masonry. The aim of this first part of the research was the design of a masonry specimen, suitably reproducing real historical masonries. To this end, an extensive number of mortar specimens were tested. Moreover, the design of a small masonry specimen, representing the critical portion of an actual full scale masonry, is presented and discussed. The right inclination of the stress field was determined by means of linear elastic analysis. A small concrete slab and a suitable test-loading machine were studied to simplify the application of the load on the specimens.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
