Stress-strain state of reinforced bimodulus beam on an elastic foundation

Beskopylny, Alexey; Kadomtseva, Elena; Strelnikov, Grigory; Berdnik, Yanina

doi:10.1088/1755-1315/90/1/012064

Cited by 16 publications

(16 citation statements)

References 7 publications

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“…The elements with the lowest strength characteristics are determined. This approach allows regular studies of mechanical characteristics on real structures [11,12,13] and draw conclusions about their work capacity.…”

Section: Discussionmentioning

confidence: 99%

Diagnostics of steel structures with the dynamic non-destructive method

2019

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The method of the assessment of steel structures mechanical properties is considered with the nondestructive test by conical indentation. The nondestructive evaluating of the steel mechanical properties in real structures is widely spread in many applied problems. Dynamic indentation method is one of the most effective because of compatibility and accuracy. For this purpose, the static and dynamic problem of axisymmetric elastic-plastic truncated cone indentation is solved, and the results are compared with finite element analysis and experimental data. The method of nondestructive evaluating of mechanical characteristics is suggested and devise of the realization of the method is tested at real structures. The method is tested on steel railway bridges that are being operated for more than 60 years. As a result, zones with lower strength values were identified, and recommendations for strengthening the design were given.

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Section: Discussionmentioning

confidence: 99%

Diagnostics of steel structures with the dynamic non-destructive method

2019

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“…From 5we obtain a formula for determining the radius of curvature for a reinforced beam of heterogeneous material Comparing formulas (4) and (5), we obtain the reduced stiffness expression for reinforced beams of heterogeneous material D in form (6). The position of the neutral line is determined by the equation 7obtained from the static equation-the projection of internal forces on the axis of the rod …”

Section: Problem Statement and Equipmentmentioning

confidence: 99%

“…MATEC Web of Conferences 196, 02003 (2018) https://doi.org/10.1051/matecconf/201819602003 XXVII R-S-P Seminar 2018, Theoretical Foundation of Civil Engineering Selection of the analytical cross-sectional dimensions of width and thickness of the shelves, the height of the wall causes some difficulties and is limited by the need of setting a specific ratio of the size of the I-beam. The analytical statement and numerical study [6,7] allows us to analyze the effects of the shelf width of the I-beam in contact with the elastic base on the maximum normal stresses and maximum deflection.…”

Section: Introductionmentioning

confidence: 99%

Static analysis of a reinforced bimodulus beam on elastic foundation

2018

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The work considers a reinforced concrete beam made of bimodule material on an elastic Winkler base. The influence of the number of reinforcing bars located in the stretched zone on the maximum normal stress and the maximum deflection is numerically investigated. The choice of the cross-section dimensions, such as the width and thickness of the flanges, the height of the beam, causes particular difficulties and is limited by the need to determine specific ratios of I-beam sizes. Numerical investigation allows analyzing the influence of the width of the I-beam flange that is in contact with the elastic base on the maximum tensile stresses and maximum deflection. The effect on the stressed-deformed state of the various cross-section forms is carried out in work for an I-beam, a rectangle, and a T-beam. Related to the fact that for many building materials the elastic moduli for tension and compression differ, it became necessary to determine the influence of material heterogeneity on the stress-strain state of the elements of building structures. In particular, the widespread use of reinforced concrete beams as elements of band foundations requires a refinement of the stress-strain state study taking into account the heterogeneity of concrete.

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“…The buckling analysis relates to geometrically nonlinear problems and to solve differential equations often use Bubnov-Galerkin methods [10,11], genetic algorithms [12] and practices based on Fourier transforms [13,14,15].…”

Section: Matec Web Of Conferences 193mentioning

confidence: 99%

Buckling analysis of rod structure of the two-tier dome

2018

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Abstract. The paper deals with the problem of calculating the rod structure of a two-tier dome for stability. Such structures consisting of straight rod elements are widely used in practice and have a number of significant advantages. First of all, it is a high rigidity with a low mass. Also, this type of construction is well resistant to dynamic loads. At the same time, the dome model allows for the bifurcation of points on the equilibrium state curve of the system. The problem of the dynamic stability of double dome is solved by the principle of stationarity of total potential energy of the system. The analysis of the obtained solution is carried out, and the equilibrium state diagram for a two-tier core dome is constructed.

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Stress-strain state of reinforced bimodulus beam on an elastic foundation

Cited by 16 publications

References 7 publications

Diagnostics of steel structures with the dynamic non-destructive method

Diagnostics of steel structures with the dynamic non-destructive method

Static analysis of a reinforced bimodulus beam on elastic foundation

Buckling analysis of rod structure of the two-tier dome

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