No 6 (2016)

Articles
GEOMETRY AND FORMATION OF THE THIN-WALLED SPACE SHELL STRUCTURES ON THE BASE OF NORMAL CYCLIC SURFACES
Ivanov V.N., Shmeleva A.A.
Abstract
The new forms of building structures are widely used for modern social buildings, exhibi- tion pavilions, sport and industrial erections. The possibility to create new forms of thin space shell structures on the base of normal cyclic surfaces is considering in the paper. The thin- walled shells formed by the system of the circles as well as by the system of right lines are the mostly comfortable for the erection on the building sites or for formation of the details of the structures. The normal cyclic surfaces are allowed to construct many different forms of the space structures. It is possible to create new space structures on the base of cyclic surface with combination of cylindrical or other surfaces.
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):3-8
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APPLICATION OF MODERN TECHNIQUES AIDED DESIGN FOR FORMING AND CALCULATION OF PROGRESSIVE ARCHITECTURE
SALEH M.S.
Abstract
The increasing complexity and diversity of problems in the practice of contemporary ar- chitectural design, changes the socio-economic conditions of the architect work, this requires a further improvement of design process, extensive use of advanced methods, techniques and equipment in the architectural work. Every year, there is an expansion of implementation of computer technology in the architectural and construction design.
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):8-13
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RESEARCH OF STRESS-STRAIN STATE OF SINGLE-STOREY BUILDINGS WITH INTERNAL PARTITIONS UNDER STATIC PULLING LOAD OF THE UPPER BELT OF A STRUCTURE
RAZZAKOV S.J.
Abstract
The author researches the stress-strain state of a single-storey brick building with an internal partition under static pulling load in the overlap level, and the impact on the strength of having a wooden frame construction in the supporting walls
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):14-19
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INFLUENCE OF BRICK WALLS FROM LOCAL-MATERIALS ON THE WORK OF LINEAR ELEMENTS IN MONOLITHIC FRAME BUILDINGS IN REPUBLIC OF BURUNDI
Mikerego E., Markovich A.S., Basov Y.K.
Abstract
Ordzhonikidze str.3, Moscow, Russia, 115419 The article presents the results of numerical research on the work of columns and beams in monolithic frame building where the fillings are the brickwalls from local-materials in Repub- lic of Burundi. A comparison of the longitudinal forces arising in linear elements from the combined action of vertical and wind loadsis fulfilled. The distribution of forces in the frame in case of failure of brickwalls in the ground floor is studied. In addition, the quantitative as- sessment of the internal longitudinal forces transmitted to the foundation by the brickwallsis given
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):19-25
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METHOD OF DISPLACEMENTS FOR EVALUATION OF ENERGY LOSSES UNDER CONSTRUCTION'S DEFORMATION WITH ALTERNATING SIGNS
Bondarenko V.M.
Abstract
An alternative method of displacements is introduced into the theory of so-called forecast internal energy losses. This theory is inevitably accompanied by the alternating sign of force loading for structural building materials. Previously, the author proposed the methods of evaluation for such energy losses basing on the level of the stress state. In contrast to these methods new method is looking for a difference of work of loading and unloading forces for displacement designs.
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):26-29
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BUCKLING ANALYSIS OF FUNCTIONALLY GRADED EPITROCHOIDAL SHELLS STRUCTURES
GIL-OULBE M., FARHAN S.T., TYEKOLO D.
Abstract
В настоящей статье рассматривается устойчивость функционально-градиентных эпитро- хоидальных оболочек под давлением и тепловой среды.Свойства материала принимаются как зависящие от температуры.Конечно-элементные решения получены с помощью про- граммного комплекса ANSYS. Линейные задачи на собственные значения устойчивости решается с помощью блочного метода Ланцоша. Влияние различной геометрии и парамет- ров материала на критическую температур функционально-градиентных эпитрохоидальных оболочек под давлением и тепловой средой наглядно показано. В конце, изменение напря- жений, перемещений, вращений и деформаций изучены и представлены.
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):30-37
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OSCILLATION OF A HOMOGENEOUS DIFFERENT MODULUS BAR LYING ON TWO CONSTANT FOUNDATION
Rzayev N.S.
Abstract
In the paper, a problem of natural vibration of a bar inhomogeneous in thickness and length made of different modulus material and lying on two Pasternak -type foundation is considered. The equation of motion is the fourth order complex partial differential equation. The solu- tion of the problem is constructed by means of method of operation of variables and of the Bubnov - Galerkin orthogonalization method. At specific values of characteristic parameters, the calculation in conducted and the results are represented in the form of tables and graphs of dependence between annular frequency and inhomogeneity parameters The results of calcula- tions show that account of inhomogeneity of elasticity modulus density and also mediums resistance essentially influences' on the value of annular frequency.
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):38-43
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STRESS STATE CALLED AS "BOUNDARY LAYER" IS BOUNDARY TORSION OF THE RECTANGULAR PLATE
Firsanov V.V.
Abstract
Boundary value problem formulated for determining stress state of type "boundary layer" is identically to torsion deformation of edges, and its solution in a way bring to the Dirichlet's problem is given. As a result of calculations, the essential contribution of the boundary torsion stress-strain state to the general stress-strain state of a plate is shown, that is very important for the estimation of strength for various units in thin-walled elements of aircraft structures.
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):44-51
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MODELIROVANIE NAPRYaZhENNO-DEFORMIROVANNOGO SOSTOYaNIYa KONSOL'NOGO KABELEDERZhATELYa S ISPOL'ZOVANIEM METODA KONEChNYKh ELEMENTOV
Frolov A.A., Verkhov E.Y., Morozov Y.А., Orlov M.A., Mikhaylov M.S.
Abstract
The results of calculations of the stress-strain state of iron Cable holder (console) type of CCHI used in the cabling to pass wells with the use of a complex of programs «Ansys». Theo- retically, the possibility of reducing the number of characteristic size (thickness of the bed, the thickness and shape of ribs) while retaining the strength characteristics of standard parts, which can significantly reduce the weight of the product, and therefore the cost of manufac- ture is confirmed.
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):52-58
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THE RESULTS OF EXPERIMENTAL STUDIES OF CONCRETE STRUCTURES OF HYDRAULIC ERECTIONS REINFORCED WITH CARBON TAPE UNDER THE ACTION OF BENDING MOMENTS
Rubin O.D., Lisichkin S.E., Frolov K.E.
Abstract
The reinforcement of concrete structures of hydraulic erections with carbon ribbons as external reinforcement system is proposed to carry out. The results of experimental studies of the strength of concrete structures of hydraulic erections without reinforcement and reinforced with carbon ribbons with bending moment are presented. The strength improvement by increasing with carbon ribbons is defined
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):58-63
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MODELING THE HYDRAULIC CALCULATION OF THE CONTROLLING RESERVES IN DRINKING WATER SUPPLY SYSTEMS
BACHAROU T., HOUINOU G., GBAGUIDI G.A., AHOUANNOU C., KANHO E., AZA-GNANDJI R.
Abstract
This study is part of the development of a model of hydraulic calculation of controlling reserves control in drinking water supply systems. To that end, the general expressions of the cumulative curves of gravity water supply and pumped water supply as well as the ones of the distribution over time were formulated. It appears from this study that for a peak coefficient Kp between 1.2 and 1.4, the cumulative consumption evolves linearly and for Kp ranging from 1.45 to 2.5 the cumulative consumption follows a polynomial curve of degree 3. Then, there is a relationship between the respective totals of gravity water supply and pumped water supply and the total of the cumulative consumption, which superimposed have enabled the establish- ment of the mathematical model for determining the volume of the controlling reserves.
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):63-72
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BOUNDARY VALUE PROBLEM FOR BRANCHING TYPE FLEXIBLE COMPOUND STRUCTURES
Elenitskiy E.Y.
Abstract
There is an efficient algorithm offered to calculate framing and compound coaxial shells of revolution, for each part of which accurate analytical solutions of corresponding differential equations of equilibrium are used. Conjunction of parts of branching type structure is per- formed automatically with the help of the graph theory mathematical tool. The unknowns of the resolving system of algebraic equations are the general solution arbitrary constants. Use of angular deflection method provides geometrical nonlinearity of the problem. The numerical example of calculation of the expansion bellows is presented.
Structural Mechanics of Engineering Constructions and Buildings. 2016;(6):73-80
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