ABSTRACT
Modelling techniques in dynamic analyses of Reinforced Concrete (RC) frame buildings with masonry infills use macro models for estimating drift demand. Newly proposed models include the out-of-plane behaviour of the masonry infill walls during the analysis. As part of an effort to advance displacementbased or performance based seismic design/assessment for RC frame buildings with masonry infills, a numerical model intended for dynamic analysis has been proposed to include the out-of-plane response of the infill walls and account for damage. As architectural requirements for thermal and acoustical insulation have brought an increase in infill wall thickness, such components, often considered as non-structural in new design, have come to play a significant role in the global seismic behaviour of residential and mixed-used buildings. In an earthquake, the seismic response of an infilled frame incurs damage to the masonry through permanent deformation in compression loading and friction sliding.
