Double-leaf masonry walls under in-plane loading strengthened with GFRP/SRG strips

摘要

Multiple-leaf masonry walls are usually adopted in historic buildings in seismic areas. An investigation on this type of masonry wall, characterised by two leaves of brickwork masonry and intermediate grout, has been carried out on models in laboratory. Knowing how historic masonry behaves under seismic action is fundamental for preserving architectural heritage. During earthquakes, masonry walls are subjected to shear loads that often lead to the ruin of an entire building. In recent years, the strengthening of masonry walls often foresees external bonded fibre reinforced polymers (FRPs) even if many aspects of this technique are not thoroughly known. In particular, the debonding mechanisms of FRP strips needs to be analysed using more experimental data.