No 2 (2015)
- Year: 2015
- Articles: 14
- URL: https://journals.rudn.ru/structural-mechanics/issue/view/672
Articles
ALGORITHM OF JOINT OF SECTIONS OF THE REGULAR SMOOTH SURFACES
Abstract
This paper presents the method of joint of smooth analytic surfaces and an example of its application in architecture is given. This method is demonstrated on the mating surface of rev- olution formed by the generatrix curve in the form of a cubic parabola and the translation surface formed of the curve in the form of Guido Grandi. The same example shows torsion shaping for giving of a dynamic effect, and a matrix of torsion transformation is presented
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):1-7
1-7
ANALYSE DU RESEAU DES STATIONS PERMANENTES AU BENIN: MODE DE FONCTIONNEMENT ET PERSPECTIVES KOSSOUGBETO
Abstract
Le Benin est admis dans le reseau geodesique mondial grace a ses stations permanentes. Les conflits fonciers au Benin sont croissants et l'installation des stations permanentes visent essentiellement le renforcement des capacites cartographiques et topographiques des professionnels du secteur public et prive. Les objectifs poursuivis sont : amener tous les acteurs du foncier au Benin a travailler dans un systeme unique de reference, favoriser l'enregistrement rapide des droits a la propriete, etablir une base de donnees fiable. Vu l'evolution des reseaux Gsm, le reseau de la station permanente du Benin peut etre mis a jour afin de faire de ce reseau, un reseau GNSS RTK.
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):8-10
8-10
CLIP OF THE EXHAUST STAMP FOR HIGH-QUALITY RECEIVING DIFFICULT SHEET DETAILS
Abstract
The design of a new clip of an exhaust stamp providing stable plastic deformation of the extended metal is considered. The experimental results confirming stability of process of an extract when using this clip are given.
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):11-17
11-17
INTERACTION OF PERIODIC SYSTEM HETEROGENEOUS INCLUSIONS AND COHESIVE CRACKS UNDER LONGITUDINAL SHEAR
Abstract
The elastic medium weakened by a periodic system of circular holes filled with washers from homogeneous elastic material is considered. The surface of circular holes is covered by a cylindrical film. Medium (binder) is weakened by two periodic systems of rectilinear cracks with bonds between the faces in end zones. General representations describing the class of problems with periodic stress distribution out circular holes and cracks under longitudinal shear are constructed. The analysis of cracks limit equilibrium using the end zone model is performed based on nonlocal fracture criterion with force condition of the crack tip advance and deformation condition for determination of the crack end zone face advance.
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):18-28
18-28
NONLINEAR DEFORMATION OF CIRCULAR PLATES, PIVOTALLY SUPPORTED ON THE SUPPORT RING AND LOADED BY A DISTRIBUTED FORCE ALONG THE EDGE
Abstract
The solution to the problem of nonlinear deformation of a circular plate pivotally sup- ported on the support ring and loaded by a distributed force along the edge. The problem has arisen with the need for a more accurate assessment of the stress level on the surface of the sample in the study of the loaded samples in corrosive environment.
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):28-32
28-32
THE CREEP OF CONCRETE AND ITS INSTANTANEOUS NONLINEARITY OF DEFORMATION IN THE STRUCTURAL CALCULATIONS
Abstract
This article is the continuation of the previous publicationsof the authors whicharededi- cated to calculations of the instantaneous non-linear deformations of concrete. This theory is the essential elaboration of themethodsfor calculating sustained resistance of the building structures. In this theory the instantaneous non-linear deformations of concreteare practically exactlytook into account
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):33-40
33-40
THE EXPOSITION OF EFFECTIVE PRE-STRESSING OF REINFORCED CONCRETE STRUCTURES
Abstract
A method of estimation of the exposition of effective pre-stressing of reinforced concrete structures that takes the anisotropy, nonlinearity, and non-equilibrium of force resistance of damages into account is presented.
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):41-50
41-50
OVERALL STABILITY BIFURCATION TALL OBJECTS BASED ON THE MODEL BASE AS A PLANE BOUNDED HALF
Abstract
The article considers the model problem of the bifurcation stability of tall objects on de- formable foundation slab interacting with the base model based on the half-plane bounded on the basis of the Navier equations of equilibrium
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):45-60
45-60
COMPARATIVE ANALYSIS OF SCALAR AND VECTOR FORMS OF APPROXI- MATIONS IN A FEM AFTER THE V.V. NOVOZHILOV'S RELATIONS FOR ELLIPTIC CYLINDER
Abstract
A comparative analysis of scalar and vector fields displacement approximations are set out on the example of finite element calculation of an elliptic cylinder with using of the No- vozhilov theory of thin shells A curvilinear quadrilateral finite element as a fragment of the middle surface of an elliptical cylinder with eighteen degrees of freedom at the node was used. It was shown on numerical examples that the vector approximation being invariant has fun- damental advantages over scalar approximation in the calculation of arbitrary shells
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):51-58
51-58
THE PROBLEMS OF RESEARCHING INNOVATIONS DECISIONS IN CALCULA- TION OF CONSTRACTIONS IN DIPLOMATIC COMPLEXES
Abstract
In the results of analyze of the experience exploitation the multistory innovations diplo- matic buildings are exposed the more frequently destructions in molding reinforced concrete structures of diplomatic buildings
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):58-60
58-60
DYNAMIC SUPPORT REACTIONS IN THE BEAM UNDER IMPACT
Abstract
The article presents the results of solving a dynamic problem on transverse impact on the beam. The problem is solved to determine the magnitude of the horizontal support reaction at standard fixing beam hinge-mobile and fixed-hinged supports. The design scheme is consid- ered as a flat plate. For modeling of the beam and the load was used rod model of A.R. Rzha- nitsina.
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):61-65
61-65
THE SUSTAINABILITY OF ANISOTROPIC PLATES
Abstract
The technique of definition of critical loads, leading to the loss of stability of anisotropic rectangular articulated supported plates is presented. As an example, stability problem of the rectangular anisotropic plate with compression forces in the middle surface in one direction is researched
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):65-68
65-68
METHOD OF APPLYING ADVANCED THERMAL PROTECTION AND ANTI-FRICTION COATING OF THE MULTILAYER CARBON NANOTUBES ON THE PARTS OF GAS TURBINE ENGINES
Abstract
In the paper we examine the possibility of establishing a reserve in the engine due to the use of new coatings of thin multi-walled carbon nanotubes (CNT). The developed method enables the synthesis of carbon nanotubes to obtain samples of CNT with a diameter of 2 to 5 nm and a length greater than a few microns. Using capillary effect stacking CNTs results in coatings with anisotropic properties, which allows controlling the coefficient of thermal conductivity of the composite material
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):69-75
69-75
EXPERIMENTAL STUDIES OF POLYMER COMPOSITES WITH FINELY DISPERSED FILLER (BEND TEST)
Abstract
This article presents an experimental study of the mechanical characteristics of new type fine polymer composites - injection artificial stone, the development of techniques and experi- ments for the characterization of fracture toughness of this material.
Structural Mechanics of Engineering Constructions and Buildings. 2015;(2):75-80
75-80