NUMERICAL MODELLING OF BONDED BRICKWORK UNDER CYCLIC COMPRESSION LOADING

Bonded brickwork as loadbearing walls is widely found in the heritage structures worldwide. The bonded consists of two or more bricks thickness direction which causes them to behave differently single leaf are basis masonry design guide-lines. evaluation under dynamic seismic actions therefore requires appropriate numerical modelling techniques accounting for cyclic loading. Sub-sequently, a simplified 3D mesoscale model has been developed this paper analysis different thicknesses compression. Each brick was defined using solid elements with 8 nodes and 24 degree freedom (DOF) representing an enlarged full-scale enveloped by half mortar bedding layer all around. These were arranged multiple layers zero cohesive interface simulate bond behaviour shear, tension, compression actions. A plasticity-based damage constitutive represent loading employed. thresh-old strain level used enact element deletion technique initiating brittle crack opening units. Whereas joint failure between units represented simple bi-linear traction-separation law exhibiting initial linear elastic at fol-lowed initiation evolution until surface bonding degradation. robustness proven validating test data presented clay selected construct 9 wallettes single, double triple thicknesses. modes, stress-strain curves stiffness degradation have studied.