Mitrofanov P. Calculation of Strength of Compressed Concrete Elements of High-strength Concrete on the Basis of the Deformation Model With an Extreme Measure

Object - centrally and eccentrically compressed concrete elements of high-strength concrete , the goal - experimental test developed by an engineering method of calculating the strength of reinforced concrete elements of high-strength concrete on the basis of the deformation model with an extreme measure , methods - experimental approaches to the strength and deformability of reinforced concrete columns , statistical methods in the analysis of research results, and numerical optimization methods in calculating the strength of reinforced concrete elements in the normal section , methods of structural mechanics in the analysis of the stress - strain state of reinforced concrete columns ; novelty - was developed by an engineering method and algorithm for checking the strength and determination of the required number of fixtures compressed concrete elements based on high-strength concrete based deformation model with an extreme measure , justified the state diagram of eccentrically compressed concrete elements and identified the need to consider three cases of eccentric compression , depending on the eccentricity of the longitudinal force : large eccentricities are quite small eccentricities are very small eccentricities , and delineated five cases a combination of resistance to the extended use of the completeness and compressed reinforcement; new experimental data on the maximum deformation , strength and deformability of compressed concrete elements of high-strength concrete , showing the increased compared with the methods of DBN B.2.6 - 98 : 2009 and Eurocode 2 precision engineering method developed to calculate the strength of compressed concrete elements of high-strength concrete , the results - in the thesis proposed engineering method of calculation allows for a more reliable estimate of the strength of compressed concrete elements of high-strength concrete , the expansion of the use of reinforced concrete structures based on them and increases the technical - economic indicators of construction; industry - building