Behaviour of infilled reinforced-concrete frames with various interface conditions

Abstract

This paper presents experimental studies on the behaviour of infilled reinforced-concrete (RC) frames using autoclaved aerated concrete blocks with different interface conditions between the infilled masonry and RC frames. The experiments were conducted on three groups with a total of five models: two completely infilled frames, two incompletely infilled frames and a bare frame (to verify the results). The behaviour of the structure was evaluated in terms of the level of stiffness degradation, the lateral displacement, the energy dissipation capacity and the displacement ductility ratio. The finite-element method calculation results for the modified equivalent strut model were in good agreement with the experimental results in the elastic stage.