The results of experimental studies of strength and deformability of normal sections beams of steel concrete reinforced in the stretched zone additional reinforcement without a grip.
In the article problem of expedience strengthening reinforce-concrete constructions is considered with reference on experience the use different methods strengthening, which are presented in literary sources. The analysis researches and publications is conducted from the calculation deformations concrete, armature, size bendings the increased reinforce-concrete beam elements. Dependence influence relative level previous loading is taken into account on deformation concrete and armature, curvature and bendings reinforce-concrete standards.