Геодезія, архітектура та будівництво (GAC-2013). – 2013 р.

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Матеріали V Міжнародної конференції молодих вчених GAC-2013

У збірнику опубліковано матеріали конференції, присвяченої проблемам у галузі геодезії, архітектури та будівництва. Видання призначено для науковців, аспірантів, студентів.

Геодезія, архітектура та будівництво : матеріали V Міжнародної конференції молодих вчених GAC-2013, 21–23 листопада 2013 р., Україна, Львів / Міністерство освіти і науки України, Національний університет "Львівська політехніка". – Львів : Видавництво Львівської політехніки, 2013. – 1 електронний оптичний диск (CD-ROM). – (4-й Міжнародний молодіжний фестиваль науки "Litteris et Artibus"). – Паралельний титульний аркуш англійською.

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    Determination of Stokes coefficients according to the GOCE satellite
    (Видавництво Львівської політехніки, 2013) Lopushansky, Alexander
    The last achievements of the satellite geodesy is the project of European Space Agency – the GOCE satellite mission (Gravity of field and steady – state of Ocean Circulation Explorer) which is using the satellite gradientometry method. The gravitational field of the Earth is represented traditionally as a finite series of spherical harmonic functions of the gravitational field model of the finite number of parameters Cnm, Snm. The corresponding coefficients Cnm, Snm were derived based on the second Neumann method including the construction of Gauss-Legandre grid.
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    Conditioning and dewatering for sewage sludges from treatment fasilities in the town of Brody in Lviv region
    (Видавництво Львівської політехніки, 2013) Verbovskiy, Orest; Ivaniv, Vasyl
    The influence of chemicals and their doses on filtration characteristics of sewage sludges in the town of Brody in Lviv region is determind.
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    Vibrations of axially compressed sandwich beam due to a moving force
    (Видавництво Львівської політехніки, 2013) Misiurek, Katarzyna; Śniady, Paweł
    The dynamic response of a finite, simply supported axially compressed sandwich beam subject to a force moving with a constant velocity is investigated. The classical solution has a form of an infinite series. The main goal of this paper is to present that the aperiodic part of the solution can be presented in a closed form instead of an infinite series. The shown method of finding the solution when the form is closed is based on the observation that the solution of the system of partial differential equations in the form of an infinite series is also a solution of an appropriate system of ordinary differential equations. The closed solutions take different forms depending on the velocity v of the moving force is smaller or bigger than the shear-wave velocity of the beam. The dynamic response of the sandwich beam under moving force is very important solution. It is because that it can be used also in order to find the solution for other types of moving loads.
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    Research of opportunities of absolute positioning PPP technologies when dealing with the change of city boundar
    (Видавництво Львівської політехніки, 2013) Zademlenyuk, Antonina; Avramenko, Anatoliy
    The article focuses on researching the accuracy of the method of absolute positioning PPP (Precise Point Positioning). Application results of the method are described.
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    Index of authors
    (Видавництво Львівської політехніки, 2013)
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    Late 18th – mid 20th centuries manor houses in Ukraine
    (Видавництво Львівської політехніки, 2013) Yakubovskyy, Ihor
    The paper analyzes the main directions of Ukrainian manor house development as well as defines the place of manor housing in Lviv on the Ukrainian historical background. The approaches to urban manor houses preservation are proposed.
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    Environmental impact assessment of combustible wastes utilization in rotary cement kilns
    (Видавництво Львівської політехніки, 2013) Khrunyk, Sofiya
    This study focuses on the environmental impact assessment of the coal combustion and its substitution by alternative fuels from combustible wastes during Portland cement clinker sinterization in rotary cement kiln. Environmental impact assessment was carried out based on the fuels chemical composition and operating parameters of a rotary cement kiln in accordance with EURITS and IMPACT 2002+ methods.
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    Walkways analysis of “Złote Tarasy” mall in Warsaw
    (Видавництво Львівської політехніки, 2013) Berezko, Olena
    Since their appearance and till today shopping malls have undergone significant transformations. This is reflected in contemporary studies where malls are divided into four generations. In this paper the walkways of “Złote Tarasy” mall in Warsaw are analyzed. The mall belongs to the fourth generation and is a prominent representative of the modern approach to malls construction. Based on our studies certain principles and features of architectural design of fourth generation malls’ walkways where formulated. These results can be used in designing this type of malls.
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    Mathematical model of stress and deformation state of glued anchorage of reinforcement bars in cases of exposure short and long term loading
    (Видавництво Львівської політехніки, 2013) Shyshkin, Eduard; Zolotov, Mykhaylo
    The solution of axisymmetric task of the theory of elasticity for the case of embedment of reinforcement bars into concrete of crescent type by acrylic glues, allowing to determine tensions and deformations both on contacts glueanchor, glue-concrete and in the concrete body has been proposed. It has been taken into account that at long-term loading the behaviour of acrylic glues co-ordinates the linear theory of creep. The results of calculation experiment are presented.
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    Use of modern finite element analysis packages in calculations of reinforced concrete bridges
    (Видавництво Львівської політехніки, 2013) Volotsiuga, Volodymyr; Shynder, Yuliya
    This article deals with the use of modern finite element analysis package in calculation of reinforced concrete bridges. The static elastic calculations of reinforced concrete bridge girder was being performed in Femap-Nastran NX.
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    On the calculation forces from the regulation forces in the structure with variable design scheme
    (Видавництво Львівської політехніки, 2013) Baluk, Igor
    The expressions to determine forces from the regulation forces in the "redundant" linkage of the design scheme that meets the steel structure at some reconstruction stage is presents. These forces are defined by linear combination of unit basic forces that obtained from solving a matrix system of equations finite element method with multiple right parts for the basic design scheme. Factors of the linear combination of unit basic forces proposed to determine by system of linear equations that taking account peculiarities of forces.
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    The influence of ultrafine supplementary cementitious materials on the properties of Portland cements
    (Видавництво Львівської політехніки, 2013) Rusyn, Bohdan; Postolovskyi, Kostiantyn
    This paper describes the influence of ultrafine supplementary cementitious materials (SCM's) on the properties of Portland Cements. The combined using of ultrafine ground SCM's with polycarboxylate superplasticizer allows to obtain high flowability, physical and mechanical properties of Portland cements. Advanced interpretation of the ultrafine (SCM's) and their surface activity contributes the most complete realization of potential in binding properties of new types of Portland cements and producing High Performance Concretes on their base.
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    Methods of formation of a volumetric planning structure multifunctional museum complexes
    (Видавництво Львівської політехніки, 2013) Trehubov, Konstantin
    This work is devoted to a volume planning structure of multifunctional museum complexes, depending on the nature of links between institutions integrated by the example of modern multi museums.
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    Research of irrigation pipe-line for uniform distribution of liquid
    (Видавництво Львівської політехніки, 2013) Orel, Vadym; Djakiv, Anna
    Due to the physical experiment that the projected irrigation pipeline provides practically uniform discrete distribution of liquid along the path in pressure pipe-line it was shown.
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    Rationale use of solar energy for heating the compact bioreactor
    (Видавництво Львівської політехніки, 2013) Zhelykh, Vasyl; Furdas, Yura
    This article examines the heating of bioreactor with the use of solar energy by direct heating. The technical and economic comparison of biogas plants with two types of bioreactors is carried out.
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    Visual perception aspects of excursion route composition
    (Видавництво Львівської політехніки, 2013) Antonets, Margaryta
    Research dedicated to the influence of visual perception on landscape excursion routes composition should be based on the characteristics of human perception of the environment. During forming of excursion route an important part is design of visual frames as the primary compositional elements of visual impressions. The general visual impression of the route is characterized by two parameters: the level of attractiveness of objects and the level of attractiveness of route.
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    Features of rental housing in the downtown
    (Видавництво Львівської політехніки, 2013) Verbytska, Ulyana
    This paper analyzes the features of rental housing located in downtown of the city. In particular existing types of such housing and demand for it is considered. Here you can find analyzed international, domestic experience and samples of design rental housing in downtown.
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    Definition of the operated reinforced concrete structures condition
    (Видавництво Львівської політехніки, 2013) Savytskyi, Aleksandr; Shevchenko, Tatyana
    A method is developed, which allows to determine category of the technical condition of bending reinforced concrete structures based on a probabilistic interpretation of the actual values of strength, based on the actual load level.
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    Plancglued wood construction with prestressed non-metallic fittings
    (Видавництво Львівської політехніки, 2013) Surmai, Mykhailo
    In the article is proposed a methods of anchoring and testing of prestressed nonmetallic reinforcement in timber beams. Offer examples of principal model and recommendations.
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    Physical and chemical processes of structure formation of light-weight plugging mortar
    (Видавництво Львівської політехніки, 2013) Terlyha, Volodymyr; Kovalchuk, Marjana
    Investigations of the processes of structure formation by means of X-ray diffraction, electronic microscopy and differencially-thermal analysis are implemented. The influence of active mineral additives of metakaolin and zeolite on the properties of the plugging mortar and their interaction with the portlancement minerals are established.