ABSTRACT
In this paper, a static parametric analysis of double-layered tensegrity grids is presented. The grids built with modified Simplex modules are considered. Starting from a single-module structure, more complex cases were sequentially analysed. The analysis of tensegrity structures consists of two steps. The first step (qualitative analysis) leads to the identification of the existing mechanisms and self-stress states in the structure. The second step (quantitative analysis) focuses on the behaviour of tensegrities under external loads. To carry out the qualitative assessment, the spectral analysis of the truss matrices and the singular value decomposition of the compatibility matrix are used. The qualitative analysis is performed using the second and third order theories. The influence of the level of self-stress state on the static parameters like displacements and the maximum load-bearing capacity ratio is considered.
