Reliability Provision of Rod Shells of Steady Roofs over Stadium Stands at Stage of Design Work

The design work of the spatial pivotal roof with a cut-out in the elliptic setting formed by the system of rigid threads through the sections based on determination of a numerical safety index of a designed structure has been described. The proposed method provides the sequence of solution of problem series: determination rational geometric parameters of a structure; obtaining of appropriate rigidity characteristics of basic bearing elements; determination of a track of elements destruction for typical coating diagram with the following evaluation of stressed and strained state of an object; determination of numerical safety indices of a structure (determination of the lower and upper safety limits).