Static stability analysis of a reticulated shell with a roofing system

摘要

The static stability of a single-layer reticulated shell has been systematically studied, but nearly all scholars have neglected the effect of the roofing system, and the simplified analytical method may lead to deviations between finite element analysis and the actual situation. In this paper, four full-scale reticulated shell substructure models with a roofing system were experimentally investigated to verify the effect of the roofing system. The finite element analysis (FEA) were established based on the experimental models, the connections between the purlin and purlin hanger were modelled as semi-rigid joints, the profiled sheets were modelled as equivalent orthotropic flat panels, and a weakened area was established to model the connection between the purlin and the roof panel. A series of finite element analysis models (FEM) of full-scale reticulated shells with roofing systems were established, and the effect of the roofing system on the full-scale reticulated shells' static stability was analysed.