Igor Garanzha, Anton Tanasoglo, Anatoliy Yagmur, Serafim Fomenko, Anatoliy Orzhekhovskiy
Experimental researches of multifaceted composite structures based on self-compacting concrete under axial compression
Donbas National Academy of Civil Engineering and Architecture
Abstract.The paper describes the principle of mechanical tests aimed at determining the physical and mechanical properties of self-compacting concrete В20 и В30 (according to Spanish methodologies). Bearing capacity and a character of destruction 6 and 12-sides composite (concrete-filled tubes) elements under axial compression has been experimentally found out. The order of destruction of materials and specific types of destruction the multifaceted composite elements, such as the development of plastic deformations of the steel pipe, and the severance of longitudinal welds have been given. The comparison of results of determining of the bearing capacity of concrete-filled poles, indicating to its overestimation by the analytical and the finite element calculation to 30 % has been carried out.
Keywords: multifaceted composite poles, self-compacting concrete, mechanical tests, axial compression, physic and mechanical characteristics of concrete, nature of destruction, bearing capacity.
Hafizula Benai, Ivan Baluba, Timur Radionov
Methodological bases of architectural and typological model of optimization of buildings and structures of Donbas under reconstruction
Donbas National Academy of Civil Engineering and Architecture
Abstract. The existing problematic issues in the field of optimization of typical buildings today are almost unknown. The objectives of social and economic nature and savings under renovation are not sufficiently substantiated. Thus, the question of actual of potential architectural and typological approach to the optimization of typical buildings and structures that are involved and can participate in the reconstruction process. The authors of the article have considered global issues on the most effective approaches to optimize the standard of buildings and structures that are in need of renovation, especially the complex. Additionally, the paper presents an algorithm of a process inspection of buildings and structures typical destination, taking into account the survey area where the objects are placed and to determine optimal solutions for the reconstruction of buildings and structures. The main approaches that can be used for architectural and typological model of optimization of buildings and structures on the territory of Donbas have been formulated and classified in logical sequence.
Keywords: optimization, upgrading, reconstruction, modernization, research, development, planning, ordering, methodology, structure, study, typology.
Yevgeniy Gayvoronskiy, Anatoliy Yugov
The distinctive features of the typology and architecture of underground urban planning objects in the Donetsk region
Donbas National Academy of Civil Engineering and Architecture
Abstract. The article deals with specification of typology and sociocultural role of underground and embedded objects in the cities of the Donetsk region, where the coal-mining industry historically is one of the basic town-forming branches. The culture of the region endues the underground space with the special philosophical content and symbolic value. The types of underground and embedded objects which are abundant in the region are considered, the specific examples of the objects with the description of their architectural concept features are provided. Their role in organization of architectural, compositional and artistic interaction of aboveground and underground spaces – one of the directions for the development of the Donetsk region architectural style, is emphasized.
Keywords: objects of underground urbanization, coal-mining industry, architecture and town-planning of the Donetsk region, town-forming industry, sociocultural value of coal industry, regional style of architecture.
Igor Lobov, Mikhail Lobov, Darya Djereley
Integration features of industrial buildings and structures at disturbed areas
Donbas National Academy of Civil Engineering and Architecture
Abstract. With the development of modern industrial complexes there is the problem of integrating new facilities into their structure, particularly in urban areas with a deficit of space, resulting in the need for their removal. Deleting objects complicates the process and increases logistics costs and complicates the management of industrial complexes. Under the conditions of the Donbass region, promising direction is the placement of objects of industrial chains industrial complexes enterprises in disturbed areas exhaustible resources of coal industry structures. Prevailing conditions over decades of mine operations resulted in significant human impacts on the environment in the coal-mining regions. Subsequent mass closure of mines has led to the emergence of complex phenomena and processes, negative environmental and, in particular, the social aspect. Mine area quite promising and has great potential due to the infrastructure and can accommodate a range of businesses. Of all the components that can be used in the industrial integration of the mine site should be allocated a well-developed system of communication (railways, road transport), enabling the introduction of a decentralized method of production, even large-sized products. Numerous studies in the area of reconstruction of buildings and structures, especially the typical purpose showed that the optimal approach to reconstruction – is a comprehensive approach. This is due to several reasons, which are most of its structural component distinguished: economic viability, improving the architectural and aesthetic properties of objects typical building, as well as improving the environmental performance of the objects under consideration.
Keywords: integration, renovation, industrial buildings and structures, mines, Donbass agglomeration.
Volodymyr Korsun, Yuriy Kalmykov, Sergey Makarenko
Combined technology design foundation wind power plants with a capacity of 2.5–3.0 MW
Donbas National Academy of Civil Engineering and Architecture
Abstract. The experience of the design of foundations for wind power installations (wind turbines), which belong to a class of unique high-rise building height H=100…120 m and are characterized by high demands on their rigidity and stability, are presented. The problems of foundation design for wind turbine manufacturers «Furlender», «Vestas», «General Electric» capacity of 2.5…3.0 MW, which was first used in the wind power plants in Ukraine and have no analogues in the CIS, are reviewed. The article presents the basic types of calculations for the foundations of wind turbines, arranged in the compressible and incompressible grounds. We describe a step by step method of performing calculations bases and elements of foundations of wind turbines, as well as the need to set quantitative assessment and consideration of the effect of inhomogeneous structures in terms of temperature and shrinkage deformation of concrete in the foundations of the state of stress in the process of hardening concrete. The results of calculations of deformations of raft foundation for wind turbines various types and calculation of fatigue strength of anchoring elements of foundations are presented. A comparative analysis of the most appropriate calculation of finite element models of objects are made. Applied technology foundation design considered types of wind turbines based on the combination of traditional engineering regulatory calculation methods with computer technology structural design. It applied for the first time in the CIS and provides a reasonable design solutions and technical and economic indicators of the main structures. Considerations hardening and curing concrete in the technology adopted concrete foundation raft foundation accompanied by significant heat generation, it will limit the adverse effects of temperature and shrinkage deformation of concrete on the stress state of the massive foundation slabs.
Keywords: foundations of wind turbines, deformation, strength, fatigue calculations, finite element model, the characteristics of the stress-strain state.