Lattice modeling and testing of aerated autoclaved concrete infilled frames

• A two-dimensional mesoscale lattice modeling approach for infill walls is proposed. Two tests were conducted aerated autoclaved concrete (AAC) infilled with and without openings. Modeling was validated the test results. Infill contact length found to depend on deformation levels. Significant wall damage in reinforced frame buildings observed past earthquakes. vast number of numerical approaches have been proposed estimate non-linear behavior frames at different scales. Mesoscale models successfully used simulate member response. In this study, an extended calibration technique consistently applied response unreinforced Aerated Autoclaved Concrete masonry frames. AAC tested purposes study. The objective investigate effect wall-frame interaction openings validate approach. addition conducted, two from literature further validation. maximum error load capacity estimation simulations less than 15% all examined tests. model capable estimating crack propagation reasonable accuracy. frame-infill simulated providing a realistic representation strut formation. Finally, parametric study examine width as function lateral deformation. results show that significantly dependent demand levels properties region.