No 6 (2014)

Articles
80 let professoru LYaKhOVIChU Leonidu Semenovichu
Redaktsionnyy sovet zhurnala «Stroitel'naya mekhanika inzhenernykh konstruktsiy i sooruzheniy» -.
Abstract
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):3-3
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METALLIChESKIE REBRISTO-KOL'TsEVYE I SETChATO-STERZhNEVYE OBOLOChKI XIX - PERVOY POLOVINY XX-go VEKOV
Krivoshapko S.N.
Abstract
С давних пор железо употреблялось в качестве усиливающего элемента в камен-ной кладке. Но оно превратилось в строительный материал лишь после появления со-временной металлургии. Кардинальные изменения в судьбе металлических конструкций последовали в начале XIX века, когда вместо каменных и кирпичных столбов стали ис-пользовать чугунные. В статье описываются жесткие металлические структуры оболочечного типа, начиная с купола Исаакиевского собора в Санкт-Петербурге и за-канчивая наиболее значимыми объектами, возведенными до 1967 года.
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):4-15
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THEANALYSISOFDIFFERENCESBETWEENHISTORICALDESIGN DOCUMENTSANDTHEREAL STRUCTUREOFTHESHABOLOVKARADIOTOWERBASEDON USING 3DMODEL
Leonov A.V.
Abstract
The analysis made in the paper has shown that the real structure of the Shukhov's tower located in Shabolovka Street has considerable differences in comparison with survived project and working drawings as well as with calculations performed in the workbookof Shukhov. In the S.I. Vavilov Institute forthe History of Science and Technology of the Russian Academy of Sciences, the project devoted to laser scanning and 3D modeling of the tower was fulfilled in 2011-2013. The conservation of information on geometry and real structure of the tower and guarantee of access to this information for specialists is the aim of this paper
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):15-22
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CRACKING IN CIRCULAR DISK UNDER THE INFLUENCE OF VOLUME FORCES
Kalantarly Н.к.
Abstract
A circular metal disk under the influence of volume forces is considered. The solution of fracture mechanics problem of crack nucleation in the circular disk under action of volume forces is given. The model of weakened interparticle bonds zone on condition of plastic flow under constant stress is used.
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):23-29
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THE APPLICATION OF A METHOD OF BOUNDARY INTEGRAL EQUATIONS OF A THEORY OF ELASTICITY FOR MODELING OF AEROELASTICITY OF BRIDGE STRUCTURES
Dorogan A.S.
Abstract
This work describes modeling of winding of bridge structures by the wind flow for non- bound systems with an application of a method of the boundary integral equations and is de- voted to aerodynamical analysis of bound systems of interaction of solid bodies and gas, i.e. to aeroelasticity of span structures and pylons. The solutions of the 'wind flow - bridge struc- tures' interaction problems in the form of multi zonal and variation approaches are shown in the theoretical part.
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):30-35
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MODELS OF CREEP AND RELAXATION WITH USING OF FRACTIONAL DERIVATIVES
Erokhin S.V.
Abstract
Creep and relaxation models based on fractional derivatives are submitted. Models of parameter determination are described. It allows predicting system behavior.
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):35-39
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LINEAR EQUATIONS OF FORCE RESISTANCE AND DIAGRAM σ - ε OF CONCRETE
Bondarenko V.M., Rimshin V.I.
Abstract
In the paper, the necessity of application of the proposals of RabotnovaYuNon using of quasi- linear equations of force resistance in the process of analysis of concrete and reinforced con- crete structures is motivated
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):40-44
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THE INFLUENCE OF NEGATIVE ATMOSPHERIC TEMPERATURES ON THE STRESS STATE AND THE SIZE OF THE CROSS-SECTIONS OF COMPOSITE BEAMS MADE OF WOOD-AND-REINFORCED CONCRETE IN AUTO ROAD BRIDGES
Salamahin P.M., Reshetnikov I.V.
Abstract
The article presents the derivation and solution of the differential equation of the ultimate limit state of the wooden and reinforced concrete beam under the influence of negative atmospheric temperatures, as well as the results of studies of the effect of negative atmospheric tempera- tures on the stressed state and the size of the cross-sections of the composite beams made of wood and reinforced concrete, in auto road bridges obtained by the developed program of computer-aided design.
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):44-50
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ESTIMATED RATIONALE AND TECHNICAL SOLUTIONS FOR STRENGTHENING CONCRETE STRUCTURES OF HPP (PSPP) HAVING CRACKS OF DIFFERENT DIRECTIONS, UNDER THE INFLUENCE OF COMPLEX LOADS
Aleksandrov A.V., Rubin O.D., Lisichkin S.E., Balagurov V.B.
Abstract
Hydrotechnical facilities during construction and operation may be subject tonon- project impacts (including non-project subsidence). At the same time, in the reinforced concrete constructions a system of cracks occurs, the nature of which corresponds to the complex features of the acting loads. On an example of the HPP (PSPP) building are encouraged to strengthen concrete structures of hydraulic system of external reinforcement on the basis of carbon fiber. Based on numerical simulations computational justification of proposed technical solutions to strengthen concrete structures of hydraulic structures is performed
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):50-54
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EFFECT OF DIFFERENT TYPES OF EXTERNAL LOADS AND SECURING THE ENDS OFBEND I-BEAM ON THE LOCAL BUCKLING
Sukach A.A.
Abstract
Research of local buckling of bending I-beams with the application of GOST 26020-83 for different types of external loads and securing the ends. A comparative analysis of the ob- tained solutions is presented. It is shown that local buckling creases in bent elements depend only on the level of the critical moment - the moment of formation of folds and do not depend on fixing conditions, not on the type of loads application, and do not depend on the method of application of the load (for example, the top or the bottom shelf)
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):55-58
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ACCOUNT OF THE SHIFT AS RIGID BODY OF SHELL OF REVOLUTION AXIALLY SYMMETRIC LOADED ON THE BASE OF FEM
Kiselev A.P., Kiseleva R.Z., Nikolaev A.P.
Abstract
The displacements of nodal points and their first derivatives were selected as unknown nodal finite element parameters. An example of calculation shows that the presented invariant approximation of displacement fields in the vector formulation allows solving the well-known finite element problem as a rigid body displacement in general
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):59-64
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METHODS FOR ASSESSING STRENGTH OF BIOLOGICAL MEMBRANES
Harislamova L.U., Yakupov S.N.
Abstract
The article is devoted to a review of the experimental methods for studying the mechani- cal properties of various biological objects (biological tissues). The mechanical properties are used to evaluate and monitor the quality of agricultural products. In particular, the experimen- tal data will help to improve equipment for harvesting, to develop effective methods of trans- portation and packing of a crop. Two-dimensional experimental method of determining the mechanical characteristics of exocarp (peel) of apples was devoted. The example was consid- ered.
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):65-71
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EXPERIMENTAL RESEARCHES OF WORK OF EMBOSSMENTS SUBJECTED TO THE BENDING
Rumyanceva I.A.
Abstract
Experimental studies of bending images of composite slabs with reinforcement steel profiled decking on the walls of various embossments. Recommended values of factors for steel profiled sheeting with different types on the walls embossments as part of a composite slab needed in the calculation of overlap in strength by normal sections
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):71-75
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55 YEARS OF THE DEPARTMENT OF STRENGTH OF MATERIALS AND STRUCTURES OF PEOPLES' FRIENDSHIP UNIVERSITY OF RUSSIA
Grishin D.K., Gill-oulbe M., Grinko E.A.
Abstract
The scientific, educational, out-of- educational, and public activity of the Department of Strength of Materials and Structures of Peoples' Friendship University of Russia are described in the paper for the period of the last 55 years.
Structural Mechanics of Engineering Constructions and Buildings. 2014;(6):76-80
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