In order to study the whole process of stress and deformation of the overall structure in the earthquake,based on complex loading on multi-ribbed composite slab structure with framework at the bottom,a calculation model was established incorporated in the program IDARC by the hysteretic rules of Park-three-degradation-parameter,and the comparison and analysis was made between numerical simulation and experiment of hysteretic curves.The results showed that the curves are in good agreement,besides,it verified the correctness of the model,and provided references for the analysis and calculation of this kind of structure.Afterwards,detailed stress characteristics of the specimens in the elastic-plastic stage and crack development were simulated by ANSYS and compared with test phenomena,which showed that the design of nested structural form of multi-ribbed composite slab can improve the seismic performance of the whole structure.
