Free-standing spiral steel staircase without central supporting with finite element simulations.

Autor: Wicaksono, Prayogo Ibnu, Wijaya, Usman, Dewobroto, Wiryanto
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Zdroj: AIP Conference Proceedings; 2023, Vol. 2846 Issue 1, p1-7, 7p
Abstrakt: This paper presents a spiral steel staircase with finite element analysis using ABAQUS software. The design of a spiral steel staircase uses thin plates without center support. The geometric shape of the spiral steel staircase, which has a height of 4.05 m between floors, is designed with a total diameter of 3.05 m, where the inner diameter is 0.75 m, it has 31 steps with a stair width of 1.15 m, the height of the steps and railing is 1 meter. The design of a spiral steel staircase using thin plates without center support will cause stability problems. The staircase structure is modelled as a nonlinear finite using the ABAQUS program to solve this problem. The finite element analysis is carried out to determine the structure's most significant displacement and stress. The most significant displacement value in the Z-direction (gravity) is 3.551 mm on the outer side. It means the inside area of the staircase has greater rigidity than on the outer side. The results demonstrate that the inner side of the staircase is the major support for the structure and the critical part of the system, so it should be considered in the spiral steel staircase design and construction stage. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index