No 2 (2012)

Articles
Geometry and forming of the polyhedral Box tYpe surfaces on base cyclic surface
Ivanov V.N.
Abstract
The article concerns the questions of the formation of the thin-walled constructions with cross sections in the form of polyhedral. The bases of such constructions are cyclic surfaces with some line of the centers and the law of change of the radius of the generating circle. There are received the vector equation of the box-type surfaces with different number of the sides of the polyhedral. The coefficients of the main forms of the surfaces are received also.
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):3-10
views
NUMERICAL ANALYSIS OF THE STRESS-STRAIN STATE OF THE MEMBRANE SHELL WITH ACCOUNT OF GEOMETRICAL NON-LINEARITY
Trushin S.I., Sysoeva E.V.
Abstract
The numerical procedures and results of analysis of rectangular membranes are presented. For the solution of the nonlinear problem the finite difference energy method and Newton-Raphson method are used.
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):11-14
views
EXPLORATIONS OF THE TENSION MECHANISM AT COLD ROLLING OF STRIPS
Kohan L.S., Belelyubsky B.F.
Abstract
The authors investigate the tension mechanism of multy-strand rolling. Calculation of process variables with the account of forward and back tensions and depending on inclination of loop lifter is presented.
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):15-19
views
SYSTEM OF RESOLVING EQUATIONS OF BOUNDARY INTEGRAL APPROACH FOR THE HALF-SPACE WITH REINFORCED HOLE UNDER THE TENSION TO INFINITY
NIZOMOV D.N., KhODZhIBOEV A.A., SALOMOV N.G.
Abstract
In this article, we solved the problem related to half-space with arbitrary shape's anchored openings. The half-space is under the tectonic stresses.
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):20-24
views
A CRACK WITH INTERFACIAL BONDS BETWEEN FACE ON BORDER OF THE UNIT OF THE ROAD COVERING AND THE ELASTIC BASIS
Hasanov S.H.
Abstract
The plane problem about the crack - stratification, arising on border of the unit of the road covering linked to the elastic basis from other elastic material when normal loading is enclosed to a surface of a covering is investigated. The problem on equilibrium of a crack on border of connection of materials at action of external normal loadings and tractions in the bonds interfering its disclosing, is reduced to system nonlinear singular the integro-differential equations with a nucleus such as Cauchy. The condition of limit equilibrium of a crack with a tip zones is formulated, taking account in view of criterion of limit traction of the bonds.
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):25-32
views
THE DECISION OF PHYSICALLY NONLINEAR FLAT PROBLEM OF THE THEORY OF ELASTICITY AND ITS APPLICATION TO CALCULATION OF THE BEAMS CONTACTING WITH BED
Ivanov S.P., AKhMETShIN M.N., Akhmetshin M.N.
Abstract
The technique of the decision of physically non-linear plane problem of the elastic theory in moving is developed. The application of the given technique to calculation of the beams cooperating with the bed, having the non-linear diagram of deformation is presented. The example of analysis of a beam is resulted.
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):33-36
views
K TEORII TREShchINOSTOYKOSTI ZhELEZOBETONA
MAYOROV V.I.
Abstract
В статье изложены основы теории трещиностойкости железобетона. Предложены модели сопротивлению бетона сдвигу арматуры, как упруго-пластического материала с упрочнением, использующие деформационные критерии предельных состояний в точках перелома. Дается вывод расчетных формул определения расстояния между трещинами, ширины их раскрытия, с необходимым экспериментальным обоснованием.
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):a36-43
views
ДЛИТЕЛЬНАЯ ПРОЧНОСТЬ ПЛИТЫ ИЗ КОМПОЗИТА ПОЛИЭСТЕР-ДЕРЕВО
Olodo E.E., Adjovi E., Kopnov V.A.
Abstract
Работа посвящена разработке методики моделирования длительного поведения многослойных композитных конструкций под постоянными сложными нагрузками. Конкретно рассматривается вопрос об оценке длительной прочности некоторой модели из композита стеклопластик-дерево по критерию длительной прочности Гольденблата-Копнова. Рассматриваемая модель является ортотропной трехслойной плитой типа «сэндвич», верхний и нижний слои которой выполнены из стеклотекстолита КАСТ-В, а средний слой - дерево (сосна).Исследование показало, что для подобного типа конструкции использование упомянутого критерия прочности возможно.
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):44-48
views
IMPROVEMENT OF AN APPROXIMATION SCHEMEFOR ROD FINITE ELEMENT DISPLACEMENTS TO ANALYZETHE REINFORCED PLATES
Serpik I.N., Shviryaev M.V., Tyutyunnikov A.I.
Abstract
The rod finite element providing displacement compatibility in case of eccentric connection a rod with a thin plate in the direction along the interface circuit is developed. This approach to the approximation of displacements allows to reduce the discontinuities of the rod internal forces on nodes. The results of the reinforced plate calculation showing a significant increasing of the solution accuracy in the comparison with the traditional procedure of discretization of plate-rod systems are presented.
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):49-54
views
DETERMINATION OF STRESSES IN THE INTERSECTION OF PLANES UNDER PLANE LOADING ON THE BASIS OF THE FEM
Kiselyov A.P., Gureyeva N.A., Kiselyova R.Z., Leont'eva V.V.
Abstract
For the determination of the stress-strain state of plates which are under flat loading, a volume finite element with quadrilateral cross-section and with the nodal unknown displacements and their derivatives is used. For a node on the border junction of the plates at an arbitrary angle α, it is obtained relations between the nodal unknowns of one plate, taken as main one and the plate adjacent to the main plane with angle α. Two cases are considered: a plate of homogeneous material and a plate made of dissimilar materials.
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):56-62
views
DYNAMIC CALCULATION CORRECT N-COAL, TRIANGULAR AND RHOMBIC PLATES WITH HINGE A SUPPORT ON A CONTOUR WITH USE OF THE RELATIONS OF CONFORMAL RADIUSES AS GEOMETRICAL ARGUMENT
Сhernyaev А.A.
Abstract
For definition of the basic frequency natural vibration elastic isotropic of correct n-coal, triangular and rhombic plates with hinge a support on a contour is suggested to use the uniform for all settlement function of one variable. As this variable acts the new argument of geometrical methods of the decision of two-dimensional problems of building mechanics - dimensionless geometrical characteristic of the form of flat area - the relation internal to the external conformal radiuses
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):63-71
views
EXPERIMENTAL RESEARCH OF BEHAVIOR OF SHELL MADE OF ROLLED METAL THIN-SHEET PROFILES SUBJECTED TO THE WIND ACTION AND COMPARISON OF EXPERIMENTAL RESULTS WITH THE RESULTS OF COMPUTER MODELING OF WIND PRESSURE
Veselev Y.A., Karabutov M.S.
Abstract
There was made a comparison of the experimental results, which were made on the basis of rolled metal thin-sheet profiles arch's full-size shift under the wind load influence on the one hand, and computer modeling results by the method, which was described in the article of Veselev, Yurii and Karabutov, Michael Reduction of rolled U-shaped profiles with reduced rigid features to an even T-shaped profile. Measurement of the arch'points shift was made in the quarter and in the middle of the arch's angular opening with the wind speed of 9 m/c. The arch modeling was based on the Solid Works software package as well as the modeling of wind flow by means of the virtual aerodynamic tunnel's construction was based on the COSMOSFloWorks software package. The methodological basis of the research are the Navier-Stokes equation and the equation of the condition of the fluid medium's components. The results are the estimation and comparison of the maximal arch shifts under experiment and computer modeling as well as the substantiation of all results.
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):72-77
views
ENERGY METHOD OF ESTIMATION OF STABILITY OF PRESSED REINFORCED CONCRETE ELEMENTS
Larionov E.A., Rimshin V.I., Vasilkova N.T.
Abstract
An energy method is used for the estimation of resources of stability of reinforced concrete elements pressed by longitudinal force
Structural Mechanics of Engineering Constructions and Buildings. 2012;(2):a77-81
views

This website uses cookies

You consent to our cookies if you continue to use our website.

About Cookies