Design principles and analysis of thin concrete shells domes and folders Preface Introduction 1. General concepts of differential geometry and surface theory 2. Structural principles in design of spatial concrete structures 3. Elements of elastic shells theory 4. Convex translation shells 5. Long convex cylindrical shells 6. Hyperbolic paraboloid shells 7. Shells of revolution domes 8. Investigations of a full scale RC dome under vertical vibrations 9. Long reinforced concrete folders References Appendix. List of symbols