English：

ANSYS finite element software is used to establish a two-layer and three-span socket-type disklock formwork support frame model to analyze the influence of diagonal brace setting and rotationalstiffness on the ultimate bearing capacity of the frame. Through the establishment of a variety of finiteelement models, the influence of diagonal brace layout, cantilever length, top step distance on theultimate bearing capacity of the frame is analyzed. On this basis, combined with the numerical simulationresults, the suggestions for the erection of the formwork support frame are proposed to provide referencefor its design.