Civil Engineering and Architecture Vol. 11(4), pp. 2033 - 2039
DOI: 10.13189/cea.2023.110426
Reprint (PDF) (710Kb)

Application of the Deformation Theory in Section Analysis of Reinforced Concrete Members with High-Strength Reinforcement

Andrii Pavlikov , Olha Harkava ^*
Department of Building Structures, National University “Yuri Kondratyuk Poltava Polytechnic”, Poltava, 02215, Ukraine

ABSTRACT

The application of deformation theory in section analysis of reinforced concrete members is based on the use of ultimate values of concrete compressive strains at the time of failure. These strains may be determined analytically by examining the bearing capacity function at the extremum. In such a study, it is usually assumed that the tensile reinforcement reaches the yield point and the stress in it is constant. When using high-strength reinforcement with conditional yield strength, the stress in the reinforcement at the moment of failure is not a constant value. This is also characteristic of over-reinforced members, in which at the moment of destruction stress in tensile reinforcement is less than its yield stress. For such a case, an analytical criterion for determining the ultimate compressive strain of concrete of reinforced concrete members is proposed. This criterion, together with the extreme concrete strength criterion, which is used for common reinforced concrete members, may be used as the basis of the methodology for calculating the strength of reinforced concrete structures. The ultimate compressive strains of concrete are determined by using the derived criterion for a range of concrete classes that match coefficient from 1 to 5. Simple analytical dependencies for section analysis of reinforced concrete members with high-strength reinforcement are obtained on the basis of ultimate compressive strains of concrete. The application of the developed method is considered using examples.

KEYWORDS
Reinforced Concrete Member, Ultimate Concrete Strain, Section Analysis

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Andrii Pavlikov , Olha Harkava , "Application of the Deformation Theory in Section Analysis of Reinforced Concrete Members with High-Strength Reinforcement," Civil Engineering and Architecture, Vol. 11, No. 4, pp. 2033 - 2039, 2023. DOI: 10.13189/cea.2023.110426.

(b). APA Format:
Andrii Pavlikov , Olha Harkava (2023). Application of the Deformation Theory in Section Analysis of Reinforced Concrete Members with High-Strength Reinforcement. Civil Engineering and Architecture, 11(4), 2033 - 2039. DOI: 10.13189/cea.2023.110426.