It is known that the application of a ring beam is an effective method to prevent an out-of-plane collapse mechanism of perimeter wall panels. However this effective reinforcing method presents some problems. In order to address this, this paper describes the problems associated with this reinforcing method and studies a new technique for reinforcing historic masonry buildings by realizing a new type of ring beam made of recycled old stones or bricks reinforced at the bed joints with glass-fibre sheets, GFRP (Glass Fiber Rein-forced Polymer) grids or/and PBO (polybenzoxazole: poly-p-phenylene benzobisoxazole) cords. An experi-mental investigation has been carried out on 8 full-scale rubble-stone or brickwork masonry ring beams tested in bending. The testing included the use of composite materials inserted into the mortar joints during the fab-rication phase of the beams and pinned end conditions (four-point bending configuration). Beams were rein-forced with different reinforcement layout.
Experimental analysis of masonry ring beams reinforced with composite materials
BORRI, AntonioMembro del Collaboration Group
;CORRADI, Marco
Membro del Collaboration Group
;SISTI, ROMINAMembro del Collaboration Group
;
2016
Abstract
It is known that the application of a ring beam is an effective method to prevent an out-of-plane collapse mechanism of perimeter wall panels. However this effective reinforcing method presents some problems. In order to address this, this paper describes the problems associated with this reinforcing method and studies a new technique for reinforcing historic masonry buildings by realizing a new type of ring beam made of recycled old stones or bricks reinforced at the bed joints with glass-fibre sheets, GFRP (Glass Fiber Rein-forced Polymer) grids or/and PBO (polybenzoxazole: poly-p-phenylene benzobisoxazole) cords. An experi-mental investigation has been carried out on 8 full-scale rubble-stone or brickwork masonry ring beams tested in bending. The testing included the use of composite materials inserted into the mortar joints during the fab-rication phase of the beams and pinned end conditions (four-point bending configuration). Beams were rein-forced with different reinforcement layout.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
