A simple performance-based test technique was developed for the fire resistance assessment of columns. In this method, the column specimen is tested using a conventional column furnace while it is coupled with a simple analytical model. The simplified model simulates the remainder of the building. The components of interaction between the column specimen and the analytical model are deformations and loads. The new test approach includes the axial load-deformation interaction components. In other words, the axial load of the column specimen is varied according to the structural system response. The simple approach was employed for different building frames and the results were compared and verified with those obtained from an analysis using the SAFIR computer software. This paper provides the theoretical concept and formulation of the simple hybrid test approach. Before putting the model in practice, it will be further verified through a future experimental program.
展开▼
