Abstract
Materially and geometrically non-linear analysis of the tested models for a large space frame is presented based on one-dimensional finite element method. The analytical results have been confirmed to agree sufficiently with the experimental ones up to a large deformed state. Coupled chord bucklings and complicated collapsed states were simulated well. The analytical results of the partial models have shown that coupled buckling between several chords appears asymmetric because of the difference of axial forces allowed by adjacent members. Except for whole buckling-like phenomena, it is possible to analyze a large and complicated space frame with elasto-plastic coupled bucklings up to a large deformed state.
