No 2 (2014)

Articles
INVESTIGATION OF THE STRESS-STRAIN STATE OF CONSOLE PLATE WITH HOLES
Zaytsev S.E., Safronov V.S.
Abstract
The paper presents an analytical model estimates the stress-strain state and stability of flat plates with a cutout, built on the basis of the energy method. The results of the calculations and their comparison with the results obtained by the finite element. Obtained in this study are calculated according to analytical.
Structural Mechanics of Engineering Constructions and Buildings. 2014;(2):3-15
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FRACTURE OF THE PLATE, WEAKENED BY PERIODIC SYSTEM OF CURVILINEAR HOLES AND RECTILINEAR CRACKS
Akhmedova M.г.
Abstract
The problem of brittle fracture mechanics of an elastic plate weakened by a periodic sys- tem of curvilinear holes and rectilinear cracks is considered. The general conceptions of solu- tions that describe the class of problems with periodic stress distribution out of the curvilinear holes and cracks is constructed. The stress intensity factors are found
Structural Mechanics of Engineering Constructions and Buildings. 2014;(2):16-23
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LONG BEARING CAPACITY OF WOODEN STRUCTURES
Varenik A.S., Varenik K.A.
Abstract
In the work, the solution of a problem of stability of the compressed wooden elements with taking into account nonlinear creep of wood is presented. The characteristic of creep rep- resenting the relation of deformation of creep to initial instant deformation is used. Expression for long critical force is derived
Structural Mechanics of Engineering Constructions and Buildings. 2014;(2):23-30
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ON THE DEFORMATION ANALYSIS OF FRAMES OF INELASTIC CONSTITUENTS
Rochev A.A.
Abstract
In this paper, the problem of the deformation calculation of compressed-bent frame of the inelastic elements of the composite having a variable cross section and variable stiffness along the length of shear ties was solved. The solution is based on the theory of elastic composite bars of A.R Rzhanitzin. Statically indetermination of frames is disclosed by the deformation method. Reactions in the input connections are determined by the method of initial parameters. Stiffness of the composite elements is determined using the expression for the determination of equivalence of deformation coefficient, previously obtained by the author, which takes into account the compressibility of the branches, shear deformations of the material of branches forming the bar, the development of inelastic deformation in them
Structural Mechanics of Engineering Constructions and Buildings. 2014;(2):31-36
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OPTIMAL SIZE-AND-SHAPE SYNTHESIS OF SYSTEM OF STRENGTHENING OF STEEL TRUSSES
Alekseytsev A.V.
Abstract
The computing circuit for search the optimal size/shape of structural design to improve the bearing capacity of metal trusses based on the evolutionary modeling is developed. We considered strengthening by increasing the rod cross section and a change structural layout of the object. The topology formation is performed based on exception of some redundant rods of structure and a change position of nodes. By increasing of cross section rods the strengthening is modeled by introducing finite elements with hard consoles. Optimization is carried out by path the minimum cost of structures. The examples of strengthen in truss equipment building overhead cranes and increase operational load on the roof is given.
Structural Mechanics of Engineering Constructions and Buildings. 2014;(2):37-46
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THE ELEMENTS OF DISSIPATIVE THEORY OF FORCE RESISTANCE OF CONCRETE
Bondarenko V.M.
Abstract
A method of evaluation of force resistance of reinforced concrete is presented in dissipative definition which takes into the consideration non-linearity, non-balance of deforming and corrosion damages
Structural Mechanics of Engineering Constructions and Buildings. 2014;(2):47-57
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AN ACCOUNT OF REINFORCEMENTS IN A SHELL ANALYSIS BY VARIATIONAL-DIFFERENCE METHOD
Kushnarenko I.V.
Abstract
A ribbed shell of a general form consisting from a skin, a position of points of the middle surface of which is determined by the orthogonal curvilinear coordinates ?, ?, and curved ribs, lying along coordinate linesareconsidered. At the moment, a classical approach is taken in the work to model ribs by the rod theory of Kirchhoff-Clebsch. A shell is described by the theory of thin shells of the Kirchhoff-Love
Structural Mechanics of Engineering Constructions and Buildings. 2014;(2):57-62
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CALCULATIONCONTACT PRESSUREON THE WORKING SURFACE OF THE TEETH OF SPURGEARING
Belousov Y.V.
Abstract
N the article,the questions for determination contact compression stress in spur gearing are considered. Thequantitative analysis of contact compression pressure on districts of the line of action wasmade
Structural Mechanics of Engineering Constructions and Buildings. 2014;(2):63-67
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DETERMINATION OF THE APPARENT RESISTIVITY OF HETEROGENEOUS GROUND WITH MULTI-LAYER HOUNDEDAKO
HOUNDEDAKO S., AREDJODOUN J., VIANOU A.
Abstract
In this work, we propose to determine the apparent resistivity of heterogeneous ground to several layers. To this end, we evaluate by the Matlab programming the model of ground with two layers on the one hand and stress a relation allowing calculating the apparent resis- tivity of the ground model to several layers on the other hand. These results confirm those found by the finite element method and the relation suggested by IEEE [2000] which makes simply the resistivity average of the various ground layers
Structural Mechanics of Engineering Constructions and Buildings. 2014;(2):68-76
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ANALYSIS OF THE STRESS-STRAIN STATE OF SPHERICAL SHELLS WITH THE HELP OF THREE-DIMENSIONAL ELEMENTS
YAKUPOV S.N., KIYAMOV I.H.
Abstract
Approach of modeling of massive and thin-walled elements of designs of the difficult geometry which has been set in spherical coordinates by three-dimensional final elements is developed. The three-dimensional object is set by parameters of a single cube which breaks into final elements. The decision in an element is submitted in the form of an interpolation hermit cubic spline of three variables. The analysis intense the deformed condition of a thin- walled spherical cover with local deepening is made.
Structural Mechanics of Engineering Constructions and Buildings. 2014;(2):76-80
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