Yurko P. Strength in the normal section of compressed concrete elements based on deformation model

The object is eccentric compressive reinforced concrete elements on the example of rectangular profile columns, the goal - improving calculation of strength in normal section eccentrically compressed concrete elements on the basis of deformation model and test strength of concrete with the use of non-linear two-line diagrams and charts armature status; methods - full-scale column experiments under laboratory conditions using the mechanical and electro-mechanical methods for measuring deformation of materials; the novelty - new experimental data on stress deformation state compressed RCE based nonlinear concrete deformation; for the first time, an equation to describe the approximation polynomial of the fifth degree for determining the level of limits of fiber concrete compressive strain in composition of RCE; refine the value of the fifth degree polynomial coefficients DBNV.2.6-98: 2009; the first time for the polynomial functions and rational function is obtained harmonized their schedules convergence; results - improved method of calculating the strength of compressed concrete elements in the normal section DBN V.2.6.98-2009 on basis of the revised coefficients; designed and engineered reinforced concrete columns in the construction of shopping malls "Atrium" and "Manufacture" in the Sumi; industry - construction.