Petrov N. Strength, deformability, and crack pryopornyh plots pozatsentrovo stretched and compressed reinforced concrete beams

Object of study: concrete beams of rectangular cross section with longitudinal and transverse reinforcement nenapryagaemoy; goal - a study of the stress-strain state of reinforced concrete flexural sections priopornyh elements accounting for the effects of longitudinal tensile and compressive forcesattached to the eccentricity, the improvement of the deformation model for calculating the elements under study, clarification of engineering methods for determining their strength, fracture toughness and deformability; methods - Experimental and theoretical methods, using the theory of experimental design, deformation theory, the strength criteria of concrete and reinforcement, concrete mechanics, numerical methods for solving nonlinear problems by using the finite element method; results - improved layered deformational model of the stress-strain state of the investigated sites priopornyh reinforced concrete elements subjected to tension or compression eccentrically; Practical recommendations on the calculation of the strength of oblique and normal sections of reinforced concrete beams priopornyh sites in the presence of longitudinal tensile or compressive forces; novelty - The effect of investigated factors on the fracture toughness, strength and deformability priopornyh sites investigated elements both individually and in interaction with each other; the mechanism and the form of destruction priopornyh sites investigated concrete elements depending on the ratio of investigated structural factors and external factors impact; introduced - the practice of design of reinforced concrete beam structures under construction Illichevsk sea fishing port, load-bearing structures of milk and meat case of the New Market, in the learning process.