Basis of Diagrammatic Deformation Model for Core Reinforced Concrete Structures Calculating

Karpenko, N. I.; YARMAKOVSKY, V.N.; KADIEV, D.Z.

doi:10.1088/1757-899x/953/1/012005

Cited by 3 publications

(4 citation statements)

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“…( характеризующие их скорость в определенный период времени t [5]. Для выполнения расчетов по определению напряженно-деформационного состояния и несущей способности коррозионно-поврежденных железобетонных плит перекрытия коэффициенты ψ sx , ψ sy и ψ bx , ψ by определяются опытно-теоретическим и расчетным путем.…”

Section: /6'2023unclassified

“…В данной работе определены коэффициенты упругости бетона в зависимости от напряженного состояния и коэффициенты неравномерности деформации бетона и арматуры в стадии трещинообразования. Ниже приводятся результаты испытаний шести сборных железобетонных плит в натурных условиях [5].…”

Section: /6'2023unclassified

“…Прочностные и деформационные характеристики испытываемых плит и категории повреждения приведены в работах [5,6].…”

Section: /6'2023unclassified

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Coefficients of the irregularity of the deformation of the reinforcement and the concrete of corrosion damaged reinforced concrete slabs

Minasyan

2024

Concrete and Reinforced Concrete

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Introduction. In practice, to perform calculations to determine the bearing capacity of reinforced concrete slabs at the stage of cracking, the work of concrete between cracks in the tension zone is taken into account. This paper presents the results of full-scale tests of damaged precast reinforced concrete floor slabs to determine the coefficients V.I. Murashev – uneven deformations of reinforcement ψs in the tension zone and concrete ψb in the compression zone for corrosion-damaged slabs in the stage of cracking. The aim of the work: to determine the coefficients of uneven deformation of reinforcement and concrete experimentally for corrosion damaged reinforced concrete floors at the stage of cracking. Materials and methods. The article describes the methodology for setting up an experiment to measure the deformations of reinforcement and concrete, slab deflections, crack opening widths, and describes the parameters of the testing installations. Results. The work presents the main results of experimental studies in graphical form. Conclusions. Research shows that with the appearance of cracks, the coefficient ψsx first increases and then stabilizes. The coefficient ψbx immediately after the formation of cracks first increases slightly, then decreases more gradually.

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Section: /6'2023unclassified

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Coefficients of the irregularity of the deformation of the reinforcement and the concrete of corrosion damaged reinforced concrete slabs

Minasyan

2024

Concrete and Reinforced Concrete

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“…The iterative process of searching for the true values of strength is carried out in accordance with N.I. Karpenko's criterion [4-theses] with volumetric compression [12]:…”

Section: Definition Of the Purpose And Objectives Of The Studymentioning

confidence: 99%

Simulation of Performance of CFST Elements Containing Differentiated Profile Tubes Filled with Reinforced Concrete

Vatulia

Lobiak

Chernogil

et al. 2019

MSF

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The approach to calculating CFST elements is considered in which physical non-linearity of materials, geometric non-linearity of the tube and the effect of increasing the strength of the core are taken into account. Finite element models are developed and proposed as the basis for more accurate method of calculating concrete-filled steel elements consisting of differentiated profile tubes filled with reinforced concrete. The technique uses a step iteration algorithm involving analytical dependencies and finite element simulation. The criterion for determining the load bearing capacity of CFST elements was the achievement of the stresses in the tube of the characteristic strength. The possibility of estimating the load bearing capacity of elements by limiting stresses in the core concrete is also implemented. The result of the calculations was obtaining the stress-strain and limiting state of the differentiated profile tubes with CFST elements, and graphic analysis of the regularities of stress redistribution at different stages of performance of columns. In general, with the accepted problem statement we could establish the exact stress-strain state, take into account the elastic-plastic deformations of concrete, its cracking and destruction, and geometric nonlinearity of the tube. The effect of performance of the corrugated sheet as a tube was established.

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Method for Determining the Design Resistance of a Glued-In Twisted Elliptical Bar for Pulling Out in Elements of Wooden Structures

Лабудин

Tyurina

Mavrin

et al. 2022

Lecture Notes in Civil Engineering

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Basis of Diagrammatic Deformation Model for Core Reinforced Concrete Structures Calculating

Cited by 3 publications

References 0 publications

Coefficients of the irregularity of the deformation of the reinforcement and the concrete of corrosion damaged reinforced concrete slabs

Coefficients of the irregularity of the deformation of the reinforcement and the concrete of corrosion damaged reinforced concrete slabs

Simulation of Performance of CFST Elements Containing Differentiated Profile Tubes Filled with Reinforced Concrete

Method for Determining the Design Resistance of a Glued-In Twisted Elliptical Bar for Pulling Out in Elements of Wooden Structures

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