Buckling capacity of socket template scaffold with random bending stiffness and capacity

Scaffold, an essential component in practical engineering, is widely used. However, many engineering accidents result from scaffold collapses. This is because of defects in scaffold connection nodes and variations in mechanical behaviors in real-world engineering. Therefore, on the basis of deterministic parametric analysis , a stochastic finite element parametric analysis method based on ANSYS stochastic algorithm is proposed in this paper. The method can closely simulate the influence of defects at various connecting nodes on the overall stability of scaffolds under real-world conditions. Furthermore, this approach investigates the effects of initial bending stiffness and ultimate bending capacity of nodes on the overall stability of scaffolds. This paper has a twofold purpose. Firstly, it investigates the stochastic distribution of stability performance of heavy-duty inserted template scaffolds by considering node stochastic defects as initial conditions and different loading modes and areas as variables. The findings reveal that in scaffold equipped with lateral constraints at the top, these restraints act as the primary support when loads are initially applied. However, as the load intensifies, the effectiveness of the lateral constraints diminishes, and the bending stiffness of the nodes begins to assume a critical supporting role within the scaffold system. Secondly, it conducts stochastic finite element analysis on the scaffold's single-pole buckling capacity by employing the stochastic defect method with the load application position as a variable.