Bogdanov O. Precast ferroconcrete bending elements with twostaged local prestressing.

Object of research: ferroconcrete beams with twostaged local prestressing. The purpose of research: creation precast ferroconcrete bending elements with twostaged local prestressing. Methods of research: theoretical, experimental, laboratory and field while introducing. Theoretical and practical results: calculation methods; principles to react the level of the construction squeezing of the precast ferroconcrete bending elements. Novelty: Methods of calculating the suggested construction accounting physical and geometric non-leneality are elaborate. Level of introducing: twostaged local prestressing has been applied in the design decision on perfection of large-panel 9-storeyed buildings of a series 182 ("Mobile"), erected in Kharkov, and as in reconstruction "Kharkov coke factory". Field of using: reconstruc-tion, renovation of building and constructions, building.