TY - JOUR
T1 - Experimental, numerical and analytical investigations of masonry corners
T2 - Influence of the horizontal pseudo-static load orientation
AU - Colombo, Carla
AU - Savalle, Nathanaël
AU - Mehrotra, Anjali
AU - Funari, Marco Francesco
AU - Lourenço, Paulo B.
PY - 2022
Y1 - 2022
N2 - The present work aims to expand the knowledge of the behaviour of masonry corners, which are capital to obtain an integral seismic response in masonry buildings. In particular, the influence of the seismic load orientation (from π/4 to π/2) is investigated experimentally, numerically and analytically. Both units and interfaces have been subjected to a material characterisation process, following which pseudo-static 1:4 scaled experiments on a tilting table have been conducted on a symmetric dry-joint masonry corner. The experimental results have also been simulated using a discrete element model. Finally, a new analytical limit analysis model has been developed, which considers both experimental and numerical observations and accounts for rocking-sliding and flexural mechanisms. In general, a good agreement is found between the three approaches, both in terms of collapse mechanism and load multiplier.
AB - The present work aims to expand the knowledge of the behaviour of masonry corners, which are capital to obtain an integral seismic response in masonry buildings. In particular, the influence of the seismic load orientation (from π/4 to π/2) is investigated experimentally, numerically and analytically. Both units and interfaces have been subjected to a material characterisation process, following which pseudo-static 1:4 scaled experiments on a tilting table have been conducted on a symmetric dry-joint masonry corner. The experimental results have also been simulated using a discrete element model. Finally, a new analytical limit analysis model has been developed, which considers both experimental and numerical observations and accounts for rocking-sliding and flexural mechanisms. In general, a good agreement is found between the three approaches, both in terms of collapse mechanism and load multiplier.
KW - Limit analysis
KW - Flexural mechanism
KW - Rocking-sliding mechanism
KW - Seismic assessment
KW - Tilting tests
KW - Dry-joint stiffness
KW - Discrete element modelling
U2 - 10.1016/j.conbuildmat.2022.127969
DO - 10.1016/j.conbuildmat.2022.127969
M3 - Article
SN - 0950-0618
VL - 344
JO - Construction and Building Materials
JF - Construction and Building Materials
M1 - 127969
ER -