Reserves of Fail-Safe Concept of Girderless Frame under Impacts Beyond the Design Basis

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Rubric:     Design, building and reconstruction of aseismic constructions   
Annotation:

The subject of research is survivability of damaged structures of the IMS type girderless frame full-scale fragment prestressed with high-strength cables under the effects of beyond the design basis events. The structure survival indices are provided for by the system strength margins and its compensation characteristics. They are conditioned by the biaxial compression stress field in floor elements due to prestressing, which in accident condition evolution block the crack-formation processes and development of plastic ranges of stress.