Nº 4 (2009)
- Ano: 2009
- Artigos: 15
- URL: https://journal-vniispk.ru/1815-5235/issue/view/23517
Articles
NAUChNYE ShKOLY INZhENERNOGO FAKUL'TETAROSSIYSKOGO UNIVERSITETA DRUZhBY NARODOV
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):3-8
3-8
ISSLEDOVANIE POVERKhNOSTEY VELAROIDAL'NOGO TIPA S DVUMYa SEMEYSTVAMI SINUSOID NA KOL'TsEVOM PLANE
Resumo
В статье рассматриваются поверхности, ограниченные двумя плоскими концентрическими окружностями, оба семейства координатных линий которых являются синусоидами. Эти поверхности можно отнести к группе поверхностей велароидального типа. Рассматриваемые поверхности могут найти применение в ландшафтной архитектуре, а также при проектировании некоторых изделий и сооружений, так как состоят из циклически повторяющихся тождественных элементов.
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):9-12
9-12
K opredeleniYu modulya uprugosti sfericheskikh obolochek
Resumo
To definition of the module
of elasticity of spherical SHELLS
N.K. Galimov, S.N. Yakupov
Concrete settlement formulas for the spherical covers jammed on a contour which are under uniform pressure are received. Numerical examples are presented.
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):13-18
13-18
RAZREShAYuShchIE URAVNENIYa BEZMOMENTNOY TEORII OBOLOChEK V FORME TsIKLID DYuPENA
Resumo
The rezulting Equations of membrane theory
of shells in the form of dupen's surfaces
Ivanov V.N.
The paper is considered the differential equations of equilibrium of membrane theory of shells in the form of Dupin's surfaces. It is shown that the geometrical characteristics of the Dupin's surfaces allows to reduce the system of tree equation of equilibrium to one resulting equation of second order. It may be done using stress function or excluding two of the unknowns. Four types of resulting equations are received.
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):19-21
19-21
BIFURKATsIONNAYa USTOYChIVOST' SISTEMY «SOORUZhENIE - OSNOVANIE» NA BAZE MODELI VARIATsIONNOGO METODA V.Z. VLASOVA
Resumo
BIFURCATIONAL STABILITY OF THE STRUCTURE AND FOUNDATIONSYSTEM ON THE BASIS OF V.Z. VLASOV'S MODEL OF
VARIATIONAL METHOD
Inozemtzev V.K., Inozemtzeva O.V., Strelnikova K.A.
A model joining the equations for a layer of the ground on the basis of Vlasov's variational method and the equations of bending of beam strip used for a plane problem in displacements is presented.
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):22-27
22-27
SPETsIFIKA SILOVOGO SOPROTIVLENIYa POVREZhDENNYKh KORROZIEY ZhELEZOBETONNYKh KONSTRUKTsIY I NOVYE FAKTORY RAZRUShENIYa
Resumo
Выявлена специфика трансформации напряженного состояния эксплуатируемых железобетонных конструкций, вызванная коррозионным повреждением бетона и обуславливающая возможность послойного лавинного обнуления их силового сопротивления.
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):28-33
28-33
DETERMINATION DE LA VITESSE D'ECOULEMENT D'UN MILIEU GRANULAIRE PAR LA METHODE DE GALERKINE
Resumo
The difficulties bound to the transport of the granular materials in the industry brought numerous authors to propose some models in order to control the out-flow of these materials. The works of POLDERMAN permit to determine the field of velocity of the out-flow in mass of
the unalterable granular materials from a mathematical model based on hypothesis according to which the angle ψ between the major main axis of the constraint and the half angle θ at the summit of a conical hopper is a linear function of θ with the following form: ψ = C1θ . For a given value of the ray r, he determines the out-flow velocity of the continuity equation by means of the unknown velocity for ψ = 0. Using the approached solution of the continuity equation calculated by the GALERKINE method, we determine the absolute error depending of the unknown velocity. With the given approximation precision the constraint on the unknown velocity is calculated.
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):34-37
34-37
ISPOL'ZOVANIE TREKhMERNYKh KONEChNYKh ELEMENTOV V RASChETAKh PROChNOSTI MNOGOSLOYNYKh PANELEY
Resumo
THE APPLICATION OF THREE-DIMENSIONAL FINITE ELEMENTS
FOR STRENGTH ANALYSIS OF MULTILAYER PLATES
A.P. Kiselyov, N.A. Gureyeva, R.Z. Kiselyova
The possibility of using eight-node and six-edge finite elements with nodal unknown displacements and their derivative in strength analysis of thin plates consisting of several layers of materials with various physical properties is studied in the paper.
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):37-40
37-40
ALGORITM UChETA SMEShchENIYa KAK ZhESTKOGO TsELOGO TREUGOL'NOGO ELEMENTA OBOLOChKI PRI ISPOL'ZOVANII MNOZhITELEY LAGRANZhA
Resumo
THE ALGORITHM OF THE ACCOUNT OF DISPLACEMENT
AS A RIGID WHOLE TRIANGULAR SHELL ELEMENT
WITH THE HELP OF LAGRANGE MULTIPLIERS
Y.V. Klochkov, A.P. Nikolaev, O.V. Vakhnina
A question of application of a vector way of approximation of movings in the algorithms of calculation of environments of rotation developed on the basis of triangular elements of digitization which matrixes of rigidity were formed with use of the correcting multipliers of Lagrange essentially raising accuracy of certainly-element decisions of environments
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):41-47
41-47
Primenenie metoda regulyarizatsii Tikhonova dlya opredeleniya ostatochnykh napryazheniy
Resumo
Application of the Tikhonov Regularization
for residual stresses determination
Fimkin A.I.
The problem of determining the technological residual stresses in the volume of railway rails is considered. For the solution of this problem proposed design-experimental technique based on the method of Tikhonov regularization. The results of determining of residual stresses using the proposed method are presented.
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):48-55
48-55
ISSLEDOVANIE DIFFERENTsIAL'NYKh URAVNENIY PROSTRANSTVENNOGO DVIZhENIYa VYaZKO NELINEYNO-UPRUGOY GIBKOY SVYaZI I VOLN, VOZNIKAYuShchIKh PRI DINAMIChESKOM VOZDEYSTVII
Resumo
Исследуются дифференциальные уравнения пространственного движения вязко нелинейно-упругой гибкой связи и свойства волн, возникающих при динамическом воздействии в вязко нелинейно-упругой гибкой связи (ВГС). Доказано, что в вязкой ГС при динамическом воздействия возникают одна продольная волна и две поперечной волны. Основное внимание уделяется исследованию свойств возникающих волн. Определены скорости распространения этих волн.
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):56-60
56-60
O MODELIROVANII SEYSMIChESKOY VOLNY PARALLEL'NOY SVOBODNOY POVERKhNOSTI UPRUGOY POLUPLOSKOSTI
Resumo
Рассмотрена задача о воздействии плоской продольной сейсмической волны параллельной свободной поверхности упругой полуплоскости. Задача решается с помощью численного моделирования уравнений волновой теории упругости. Приводятся значения напряжений на контуре упругой полуплоскости.
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):61-64
61-64
USTOYChIVOST' REBRISTYKh POLOGIKh OBOLOChEKS UChETOM GEOMETRIChESKOY I FIZIChESKOY NELINEYNOSTEY
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):65-70
65-70
PROGRAMMA «BEZOPASNOST' GIDROSOORUZhENIY»
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):71-75
71-75
TRUBOBETONNYE KOLONNY DLYa MNOGOETAZhNYKh ZDANIY
Resumo
THE CONCRETE-FILLED STEEL TUBE COLUMNS
FOR HIGH-RISE BUILDINGS
A.L. Krishan
The concrete-filled steel tube columns should be used in the structures of hiqh-rise buildings. The experimental and theoretical researches of new structures of concrete-filled steel tube columns with pressed structure of concrete are executed. The results of experiences testify to its high bearing capacity.
Structural Mechanics of Engineering Constructions and Buildings. 2009;(4):75-80
75-80