Engineering method of calculation of durability of the binding reinforced concrete elements at sulfate corrosion of concrete

Authors

  • O. Yu. Bardakh engineer, Ukraine
  • M. V. SavytskyI Dr. Sc. (Tech.), Prof., Ukraine
  • T. D. Nikiforova Dr. Sc. (Tech.), Docent, Ukraine
  • K. V. Slyakhov Ph. D. (Tech.), Docent, Ukraine

Keywords:

sulfate corrosion of concrete, reinforced concrete structures, stress-strain state, calculation by limiting states.

Abstract

Annotation. The article presents a methodological approach for calculating the durability of cross sections of the bent reinforced concrete elements at the action of aggressive sulfate environment. Purpose. Development of engineering (simplified) method of calculation of durability of the bent reinforced concrete elements at sulfate corrosion of concrete. Methods. Method of calculation of durability of cross sections of reinforced concrete elements by limiting states. Results. The engineering method of calculation of durability of cross sections, normal to the longitudinal axis of the bent reinforced concrete elements at the action of aggressive sulfate environment is developed. For verification and justification of the developed engineering method the calculations of durability of cross sections were completed of calculation by a numeral-analytical method and by the developed method. Scientific novelty. Calculation formulas are obtained for estimating the load-bearing capacity of cross sections normal to the longitudinal axis of reinforced concrete elements by sulfate corrosion of concrete for three stages of a stress-strain state: the hardening stages of surface layers; stages of reducing the durability of concrete from the periphery to the interior of the section and the stage of destruction of the surface layers. Practical value. The developed engineering method for calculating the durability of cross sections of the bent reinforced concrete elements at the sulfate corrosion of concrete satisfactorily estimates the durability of cross sections normal to the longitudinal axis of the bent reinforced concrete elements (calculation error of 5%) and can be used for practical calculations.

Author Biographies

O. Yu. Bardakh, engineer

Department of Reinforce-Concrete and Masonry Constructions, State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk, 49600, Ukraine

M. V. SavytskyI, Dr. Sc. (Tech.), Prof.

Department of Reinforce-Concrete and Masonry Constructions, State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk, 49600, Ukraine, тел. +38 (0562) 47-02-98

T. D. Nikiforova, Dr. Sc. (Tech.), Docent

Department of Reinforce-Concrete and Masonry Constructions, State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk, 49600, Ukraine

K. V. Slyakhov, Ph. D. (Tech.), Docent

Department of Reinforce-Concrete and Masonry Constructions, State Higher Education Establishment “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24-A, Chernishevskogo str., Dnipropetrovsk, 49600, Ukraine

References

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Published

2017-08-29

Issue

Section

Innovative lifecycle technology of housing and civil, industrial and transportation purposes