Behaviour of non-integral in-filled frames with openings - A case study

摘要

The behaviour of in-filled frames is influenced by the presence of openings such as doors, windows and ventilators in the claddings or walls. The openings reduce the stiffness affecting strength and failurepattern. Their size and location have a bearing on the interaction between frame and infill panel altering the behaviour. Parameters such as structural displacement, compressive and tensile stress trajectories in the panel and support reactions and forces in frame members were investigated for a single storey infilled frame. The frame was analysed for a centrally located window and a door located at the centre and at two end positions near the columns. The analysis followed finite element method and used incremental load. It accounted for the non-linearity at the interface and the elastic properties of the frame and the infill. It shows that the stiffness of the infilled frame decreased by 20-80% due to openings.