Krantovskaya E. Strength, resistance to the cracks and deformation of the supporting uncut reinforced concrete beams

Object of researches: beams of the reinforced concretes of uncut of rectangular transversal section with a longitudinal and transversal cores; a purpose is development of scientific positions on determination of the tensely deformed condition (TDC) of beams of the reinforced concretes of uncut, development of method of calculation of durability them supporting uncut, and also verification of possibility of application of the most widespread methods for determination of resistance to the cracks and deformation of experimental beams; methods are the experimental-theoretical with the use of methods of theory planning of experiment, deformation method, criteria of durability of concrete and cores, comparing of experimental information to the results of calculation and their analysis; results - adapt the stratified deformation model of the TDC of elements of the reinforced concretes of uncut is development and addition of deformation method of calculation of constructions of the reinforced concretes, stopped up in basis of State Build Norms of Ukraine, which are developed, the engineering method of calculation of durability of the noted constructions; novelty - new experimental data about the is TDC of not cutting ferro-concrete beams are received at a flat bend, is revealed character of deformation, to the cracks and destructions of skilled elements, the layered deformation model their is TDC is improved, the engineering design procedure of durability supporting uncut RCB is developed; it is inculcated - in practice of planning of constructions of beams of the reinforced concretes at building of housing complex, at home, at planning of rigeley of the reinforced concretes of underground parking, in an educational process.