Abstract
This paper first introduces the units which are used in general-purpose finite element analysis software ABAQUS simulation of steel and concrete as well as their material constitutive models, and then taking the simulation analysis of a spiral staircase for instance to draw displacement of a spiral staircase along the outer edge lines, the inner edge lines, and the axes of the stair treads under static loadings. By comparison, we find the rationality and insufficient points of the simplification of the spiral staircase to the calculation assumption which makes the axle wires as rod pieces. According o the displacement and stress of the spiral staircase, we give some suggestions to provide some useful references to the designers of the spiral staircase.
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