Many recently-constructed unreinforced masonry (URM) buildings in Italy performed poorly in the recent earthquakes. Cracks opened in the shear walls and slippage between wall panels occurred. These buildings are made of tile hollow load-bearing blocks, also known as Porotherm block masonry. Within this context, aiming at improving the data of actual codes and guidelines, unreinforced masonry panels (URM) were first fully characterized by experimental tests, afterwards the results allowed calibrating FE-models. Lastly, a full 3D non-linear analysis was performed to investigate the in-plane response as well as the causes of the crack pattern mode of this kind of masonry panels. To this end, by assessing the shear capacity of Porotherm block masonry to withstand horizontal forces resulting from seismic loads, these methods provided a highly effective means of verifying the safety of the masonry structures and their vulnerability to extensive cracking.
IN-PLANE RESPONSE OF HOLLOW LOAD-BEARING BLOCK WALL
Giulio CastoriMethodology
;Marco Corradi
Investigation
;Antonio BorriSupervision
2019
Abstract
Many recently-constructed unreinforced masonry (URM) buildings in Italy performed poorly in the recent earthquakes. Cracks opened in the shear walls and slippage between wall panels occurred. These buildings are made of tile hollow load-bearing blocks, also known as Porotherm block masonry. Within this context, aiming at improving the data of actual codes and guidelines, unreinforced masonry panels (URM) were first fully characterized by experimental tests, afterwards the results allowed calibrating FE-models. Lastly, a full 3D non-linear analysis was performed to investigate the in-plane response as well as the causes of the crack pattern mode of this kind of masonry panels. To this end, by assessing the shear capacity of Porotherm block masonry to withstand horizontal forces resulting from seismic loads, these methods provided a highly effective means of verifying the safety of the masonry structures and their vulnerability to extensive cracking.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
