STRENGTHENING STRUCTURAL CONSTRUCTIONS WITH "MERO-MARCHI" NODAL SOLUTION
A large number of space structures, such as the double layer grids, are used long enough. During this time the structures have received different damage and defects. Except this, the code of design had changed, for example, the snow loads were increased. These conditions lead to the fact that the space structural didn't correspond modern requirements on the bearing capacity. To allow further using of these constructions they must be strengthened. This article presents ways to strengthen the space structures, such as the double layer grids.