Contact technologies in design of reinforced concrete beams with cracks

Krylov, Sergey; Травуш, Владимир; Krylov, A. S.; Konin, Denis

doi:10.1088/1757-899x/456/1/012004

Cited by 8 publications

(1 citation statement)

References 7 publications

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“…Для более детального изучения работы конструкций, а также для оценки точности принятых расчетных моделей материалов в ПК ATENA выполнено их численное моделирование. При создании расчетной схемы учтен опыт моделирования аналогичных конструкций [5][6][7][8][9][10][11][12][13]. Общий вид поперечного сечения модели приведен на рис.…”

Section: ас крыловunclassified

Numerical Calculation of Steel-Concrete Composite Beams

Krylov

2019

Vestnik Tomskogo gosudarstvennogo arhitekturno-stroitelnogo uni

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The paper presents a brief review of test experiments with models of steel-concrete beams made of high-strength concretes. The description is given to models and features of the applied materials. Numerical modeling and calculations are performed for steel-concrete beams. The modeling is performed in two versions: with and without the steel-concrete contact interaction. The calculation results are given numerically and graphically, and loads corresponding to the limiting bearing capacity, vertical displacements, crack opening width, height of the selected compressed zone are obtained. All parameters are evaluated and compared with the experimental data. Numerical and experimental models of destruction are compared. The obtained simulation and numerical results are compared.

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Section: ас крыловunclassified

Numerical Calculation of Steel-Concrete Composite Beams

Krylov

2019

Vestnik Tomskogo gosudarstvennogo arhitekturno-stroitelnogo uni

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Deformation of concrete under long-term influences of different types

Arleninov

2023

E3S Web of Conf.

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Introduction: Creep deformation of concrete depends at the character of stress state (compression, tension, bending, etc.). At this moment in our country as well abroad the chief parameter which determine by results of long tests concrete sample is the creep of concrete. These tests are done in the mode of uniaxial compression in spring units for one or several specimens, which simulates the compression of walls and columns. But in addition to centrally compressed elements, bending is present in an important part of structures (extracentral compressed columns, slabs, beams, etc.). In unique and difficult constructions massive reinforced concrete elements (foundations, elements of supports for equipment, columns of the lower floors of high-rise buildings, etc.) are often used. In this case the real work of structures under longterm effect of loading differs at the experimental one. Objective: Design and approbation of these methods to concrete testing samples under conditions other than standard tests - in the bending and three-axial compression modes. Materials and methods: In this scientific article describe the methodology of experimental setup for investigation of creep concrete specimens in the bending mode and in the mode imitating three-axial compression, describes the parameters of testing devices, specimens under test and principles transmission of load. Results: In this scientific article results of the experimental studies are presented in the graphical form in the article; their analysis is fulfilled. Conclusions: The perspectivity of the suggested approaches to the testing of concrete specimens for long-term loads has been shown, and recommendations for changes in GOST 24544 have been prepared.

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Finite element modelling reinforced concrete beam in transverse bending zone

Filatov

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The article presents methods and results of studying the stress-strain state of a reinforced concrete beam in its area of transverse bending, using the finite element models. The advantage of the finite element modelling method is relative simplicity of mechanical and physical interpretation of the finite element models. Herein, we present a description of finite element model and the method for numerical investigation during its loading and evaluation of the stress-strain state. Testing of the finite element models were performed using different lengths of shear span, taking into account the inelastic properties of concrete. During the models’ tests, the process of cracks formation and development was studied while taking into account the bond of reinforcement to concrete, which changes in line with the adopted law. We also evaluated the parameters of stress-strain state of the beam blocks separated by cracks and the stressed state of concrete at the tip of an inclined crack, depending on the loading level. Based on the results of numerical experiment, we obtained distribution patterns of principal stresses for the concrete and those of shear stresses along the reinforcement and concrete contact surface, depending on the level of loading, the degree of bond failure and the length of shear span.

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Contact technologies in design of reinforced concrete beams with cracks

Cited by 8 publications

References 7 publications

Numerical Calculation of Steel-Concrete Composite Beams

Numerical Calculation of Steel-Concrete Composite Beams

Deformation of concrete under long-term influences of different types

Finite element modelling reinforced concrete beam in transverse bending zone

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