Stability Study of Long-span Double-deck Under Axial Compression Load
A uniaxial compression test was designed and carried out for a large-span double deck scale model,and the ultimate bearing capacity of the scale model and the collapse characteristics of the structure were analyzed.Considering the influence of initial defects,a numerical simulation model was established,and the stability and ultimate bearing characteristics of the double deck model under axial compression load were analyzed by comparing the test results with the simulation results.The results show that the failure mode of the double deck scale model studied in this paper is mainly plate buckling deformation,and the stress distribution of the model obtained by simulation calculation is basically consistent with the experimental measurement results.
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