scholarly journals Improving modern technology and construction of multi-storey residential buildings by optimizing shuttering works

2019 ◽  
Vol 6 (2) ◽  
Author(s):  
Denis Pogodin ◽  
Nikolay Spiridonov ◽  
Abdulkarim Khalidov
Keyword(s):  
Residential Buildings ◽  
Modern Technology ◽  
Climatic Conditions ◽  
Practical Significance ◽  
Space Planning ◽  
Advantages And Disadvantages ◽  
Planning And Design ◽  
Design Characteristics ◽  
Under Construction ◽  
Structural Solutions

This article deals with the selection of optimal sets of formwork of the object under construction, depending on the space-planning and design solutions. Improving the use of system formwork design. The areas of formwork application are characterized, the requirements for formwork systems are given. The author presents modern types of formwork, which have different design characteristics and are designed for different climatic conditions. In the article the author characterizes the main types of formwork systems used in modern monolithic construction. Development of technology of monolithic reinforced concrete works is largely constrained by the structural shortcomings of formwork systems. The paper proposes a formwork construction module that allows concreting structures with different lengths for each object using one unified formwork panel, based on the space-planning and structural solutions. Thus it is necessary to change only places of fastening of face elements of a timbering. The practical significance of the study lies in the analysis of the advantages and disadvantages of the use of system formwork.

scholarly journals Dismantling a multi-storey building in the conditions of a built-up area: engineering and economic indicators

Vestnik MGSU ◽  
2021 ◽  
pp. 741-750
Author(s):  
Dmitry M. Mazurin ◽  
Мarina E. Dement’eva
Keyword(s):  
Urban Areas ◽  
Environmental Safety ◽  
Economic Indicators ◽  
Photographic Recording ◽  
Space Planning ◽  
Large Cities ◽  
Contemporary World ◽  
Planning And Design ◽  
Design Characteristics ◽  
Storey Building

Introduction. In the contemporary world, the number of multi-storey and high-rise buildings goes up, and this is the case of central districts of large cities. This renewal of built environments in megalopolises takes the form of development of unoccupied spaces, which grow smaller year after year, and liquidation of buildings whose life cycle is coming to an end. In this regard, there arises a problem of choosing the building demolition method, since traditional techniques, used worldwide, do not allow for the liquidation of buildings that have more than 15 floors. Therefore, given the growing number of floors, densely built-up areas, and tighter safety regulations, there is a need to improve dismantling technologies, including tighter environmental safety requirements applied to dismantling works, and this necessity substantiates the relevance of this research. The subject of this work is the engineering and economic indicators of the element-wise deconstruction and mechanical demolition, performed as a sequential set of works that end in the elimination of a multi-storey building, having various design features. The purpose of this study is to explore the engineering and economic indicators of dismantling works carried out in densely built-up urban areas, taking into account work arrangement features, space-planning and design characteristics of a building to be liquidated. Materials and methods. Given the findings of the field observations that represent photographic recording and timing, measurements were taken in respect of the time needed to perform the dismantling work in the process of liquidation of a multi-storey building. The method of mathematical analysis was employed to obtain the engineering and economic indicators of dismantling works. The work space, the scope and amount of work were identified using AutoCAD, a 2D modeling system. Results. The co-authors have identified the features of the element-wise dismantling and mechanical demolition of a multi-storey building, dependences between engineering and economic indicators, as well as the characteristics of buildings. Conclusions. The research, performed by the co-authors, allow to identify the bottlenecks of such methods of dismantling a multi-storey building, as its element-wise dismantling and mechanical demolition. The results of the work can be used to streamline the building dismantling technology, with regard to the features of surrounding buildings and the characteristics of the building to be liquidated.

Simulation and Analysis of Natural Ventilation of Residential Building's Arrangement

2011 ◽  
Vol 201-203 ◽  
pp. 1662-1667
Author(s):  
Feng Tao ◽  
Juan Li
Keyword(s):  
Pressure Distribution ◽  
Natural Ventilation ◽  
Residential Buildings ◽  
Climatic Conditions ◽  
Advantages And Disadvantages

Natural ventilation of residential buildings not only affects the comfort of people` s outdoor areas, but also has an influence on the pressure distribution in front of or behind a single building. Based on the natural climatic conditions in Hefei, the most common three arrangements are referred in this paper, and their ventilation will be simulated and analyzed by the computer. The advantages and disadvantages of different arrangements will also be compared.

scholarly journals The Estimated Quantities of Building Demolition Waste

2019 ◽  
Vol 65 (1) ◽  
pp. 49-63
Author(s):  
A. Sobotka ◽  
J. Sagan ◽  
A. Radziejowska
Keyword(s):  
Residential Buildings ◽  
Climatic Conditions ◽  
Sustainable Construction ◽  
Case Study Method ◽  
Demolition Waste ◽  
Advantages And Disadvantages ◽  
Public Facilities ◽  
Building Demolition ◽  
Calculated Average

AbstractThe aim of the article is to analyze existing foreign experiences presented in the literature in the field of estimating demolition waste and their applicability in Poland condition. Using the case study method for more than a dozen objects, the authors prove the necessity to verify the suitability of the proposed models in relation to regional conditions (e.g. climatic conditions, local technologies, etc.). The amount of concrete waste from demolition of objects made in the analyzed technology is characterized by a low coefficient of variation, especially in the case of public facilities and is only 10%. However, in the case of residential buildings, the volatility was 16,7%. The calculated average index of concrete waste was compared with the two literature models. The results obtained differ from the values obtained from the models. Based on an analysis of the advantages and disadvantages of the selected models and their assumptions, a proposal has been formulated for the development of an effective tool for estimating demolition waste taking into account regional specific conditions together with the concept of sustainable construction. The focus was on waste from demolition of concrete objects.

scholarly journals OPPORTUNITIES TO USE THE TOURISM POTENTIAL OF TOVUZ REGION OF THE REPUBLIC OF AZERBAIJAN

2020 ◽  
pp. 15-21
Author(s):  
Elnara Ismailova
Keyword(s):  
Climatic Conditions ◽  
The State ◽  
Practical Significance ◽  
Comparative Approach ◽  
Direct Role ◽  
Advantages And Disadvantages ◽  
Study Results ◽  
Tourism Resources ◽  
The Republic ◽  
Tourism Potential

Purpose. In modern times, every country acts as a provider of sustainable socio-economic development of its regions, effectively using the potential of natural resources. Among these resources, tourism resources attract more attention. Thus, the potential of tourism resources is higher and plays a direct role in the development of the regions. Tourism provides a basis for high income and quick return on investment. In a broader sense, tourism is a means affecting the formation of the state budget, the improvement of villages and cities, the preservation of historical and architectural monuments, and the development of small and medium enterprises. The purpose of the article is to study the existing tourism potential in Tovuz region and to identify opportunities for effective use of this potential. In addition, it is to analyse the tourism facilities operating in Tovuz region and make recommendations for the organisation of new tourist routes. Methods. Comparative approach, historical-territorial, typological, field research, systematic analysis, and cartographic (GIS) method have been used during the study. Results. The article studies both natural and anthropogenic tourism resources of Tovuz region, analyses hotel industry, and provides tourist routes and their advantages. The article also identifies opportunities to use the tourism potential of Tovuz region, and finally gives the results and proposals developed on a scientific basis. Scientific novelty. The state programs adopted in connection with the development of the tourism sector in Azerbaijan have been analysed, the natural-climatic conditions in terms of tourism organisation in Tovuz region have been studied, as well as the advantages and disadvantages of accommodation enterprises operating in the region have been revealed. For the first time, both natural and anthropogenic monuments of Tovuz region have been analysed in a complex way, and a map reflecting “Tourism objects and tourist routes of Tovuz region” have been provided. The organisation of the following tourist routes in Tovuz region have been proposed: Tovuz-Govlar-Abdal-Aghdara-Aghabashlar; Tovuz-Dondar Gushchu-Vahidli; Tovuz-Yukhari Oysuzlu-Alibeyli; and Tovuz-Gushchu-Azafli-Bayramli-Asrik Jirdakhan. The practical significance. The obtained results can be used in the Tourism Agency of the Republic of Azerbaijan, the tourism information centre operating in the region, as well as in the implementation of tourism-oriented activities.

Intelligent Lighting Control System in Large-Scale Sports Competition Venues

2018 ◽  
pp. 172-182 ◽  
Author(s):  
Shengmin CAO
Keyword(s):  
Control System ◽  
Large Scale ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Practical Significance ◽  
Lighting Control ◽  
Sports Events ◽  
Planning And Design ◽  
Comprehensive Evaluation Model

This paper mainly studies the application of intelligent lighting control system in different sports events in large sports competition venues. We take the Xiantao Stadium, a large­scale sports competition venue in Zaozhuang City, Shandong Province as an example, to study its intelligent lighting control system. In this paper, the PID (proportion – integral – derivative) incremental control model and the Karatsuba multiplication model are used, and the intelligent lighting control system is designed and implemented by multi­level fuzzy comprehensive evaluation model. Finally, the paper evaluates the actual effect of the intelligent lighting control system. The research shows that the intelligent lighting control system designed in this paper can accurately control the lighting of different sports in large stadiums. The research in this paper has important practical significance for the planning and design of large­scale sports competition venues.

MODERN EQUIPMENT FOR DETERMINING TRACTOR-SPEED PROPERTIES OF THE VEHICLE: CHARACTERISTICS’ ANALYSIS IN LABORATORY CONDITIONS

2019 ◽  
Vol 16 (3) ◽  
pp. 276-289
Author(s):  
N. V. Savenkov ◽  
V. V. Ponyakin ◽  
S. A. Chekulaev ◽  
V. V. Butenko
Keyword(s):  
Environmental Performance ◽  
Operating Conditions ◽  
Special Role ◽  
Development Stages ◽  
Advantages And Disadvantages ◽  
Force Transfer ◽  
Characteristics Analysis ◽  
And Performance ◽  
Loading Devices ◽  
Structural Solutions

Introduction. At present, stands with running drums are widely used for various types of tests. Power stands play a special role. Such stands take the mechanical power from the driving wheels of the car. This simulates the process of movement of the vehicle under operating conditions. Such equipment has various designs, principles of operation and performance. It is also used in tests that are different by purpose, development stages and types: research, control, certification, etc. Therefore, it is necessary in order to determine the traction-speed, fuel-efficient and environmental performance characteristics.Materials and methods. The paper provides the overview of the power stands with running drums, which are widespread on the domestic market. The authors carried out the analysis of the main structural solutions: schemes of force transfer between the wheel and the drum; types of loading devices; transmission layout schemes and features of the control and measuring complex. The authors also considered corresponding advantages and disadvantages, recommended spheres of application, demonstrated parameters and characteristics of the units’ workflow, presented components and equipment.Discussion and conclusions. The authors critically evaluate existing models of stands with running drums. Such information is useful for choosing serial models of stands and for developing technical tasks for designing or upgrading the equipment.

scholarly journals Nuclear mass measurements with radioactive ion beams

2019 ◽  
Vol 28 (04) ◽  
pp. 1930005 ◽  
Author(s):  
Michael A. Famiano
Keyword(s):  
Mass Measurement ◽  
Measurement Techniques ◽  
Nuclear Mass ◽  
Mass Measurements ◽  
Future Directions ◽  
Advantages And Disadvantages ◽  
Nuclear Masses ◽  
Under Construction ◽  
Very High ◽  
Practical Constraints

Nuclear masses are the most fundamental of all nuclear properties, yet they can provide a wealth of knowledge, including information on astrophysical sites, constraints on existing theory, and fundamental symmetries. In nearly all applications, it is necessary to measure nuclear masses with very high precision. As mass measurements push to more short-lived and more massive nuclei, the practical constraints on mass measurement techniques become more exacting. Various techniques used to measure nuclear masses, including their advantages and disadvantages are described. Descriptions of some of the world facilities at which the nuclear mass measurements are performed are given, and brief summaries of planned facilities are presented. Future directions are mentioned, and conclusions are presented which provide a possible outlook and emphasis on upcoming plans for nuclear mass measurements at existing facilities, those under construction, and those being planned.

Development of a numerical approach to assess the effect of coupled heat and moisture transfer on energy consumption of residential buildings in Moroccan context

2021 ◽  
pp. 174425912110560
Author(s):  
Yassine Chbani Idrissi ◽  
Rafik Belarbi ◽  
Mohammed Yacine Ferroukhi ◽  
M’barek Feddaoui ◽  
Driss Agliz
Keyword(s):  
Energy Consumption ◽  
Building Materials ◽  
Moisture Transfer ◽  
Residential Buildings ◽  
Building Design ◽  
Energy Performance ◽  
Climatic Conditions ◽  
Heat And Moisture Transfer ◽  
Coupled Heat And Moisture ◽  
Heat And Moisture

Hygrothermal properties of building materials, climatic conditions and energy performance are interrelated and have to be considered simultaneously as part of an optimised building design. In this paper, a new approach to evaluate the energy consumption of residential buildings in Morocco is presented. This approach is based on the effect of coupled heat and moisture transfer in typical residential buildings and on their responses to the varied climatic conditions encountered in the country. This approach allows us to evaluate with better accuracy the response of building energy performance and the indoor comfort of building occupants. Annual energy consumption, cooling and heating energy requirements were estimated considering the six climatic zones of Morocco. Based on the results, terms related to coupled heat and moisture transfer can effectively correct the existing energy consumption calculations of the six zones of Morocco, which currently do not consider energy consumption due to coupled heat and moisture transfer.

scholarly journals MODERN ARCHITECTURE AND VISUAL IMAGE OF THE CITY

2019 ◽  
pp. 102-104
Author(s):  
A. M. Tormakhova
Keyword(s):  
Urban Landscape ◽  
Residential Buildings ◽  
Visual Image ◽  
Cultural Analysis ◽  
Practical Significance ◽  
Modern City ◽  
Asymmetric Structures ◽  
The Status ◽  
Architectural Structures ◽  
The City

The aim of the article is to highlight the actual trends associated with architectural construction and identify ways of forming a visual image of a modern city. The solution to this goal involves not only the analysis of certain unique architectural structures, but also the outline of the existing visual practices in the city which correlate with the urban landscape. The research methodology is connected with the use of the method of synthe- sis, the use of tools of cultural analysis. The most extraordinary buildings are rarely residential buildings, much more often they are intended for public use. Their very essence is con- nected with publicity and attraction of a considerable quantity of visitors, tourists. These can be museums, libraries, concert halls, stadiums, shop- ping malls. In addition to these structures, extremely impressive structures are created in the field of transport – bridges, railway stations. The re- equipment of old objects and the creation of new ones becomes such that necessarily creates an occasion for communication, becoming a part of the media. In architecture there is a desire to circumvent the principle of statics that was inherent to it. Manifestations of this tendency in architecture were attempts to "revitalize" the building, giving them mobility through structures that visually convey the idea of fluidity (asymmetric structures, often deprived of straight angles with the prevalence of rounded parts). Creating the effect of architectural variability arises not only at the expense of innovative constructions, but also due to the equipment of the buildings by media facades, which perform as a purely aesthetic and advertising function, providing the opportunity to represent buildings in fundamentally different visual images. Scientific novelty consists in highlighting the specifics of architectural constructions claiming the status of "art" and visual practices that in- teract with them directly. The conclusion is made about the transformation of a modern city. The practical significance of the study is that features of the development of modern architectural constructions are presented and the factors influencing the formation of the visual image of the city are highlighted.

scholarly journals COMPARATIVE ANALYSIS OF COMPACT METHODS REPRESENTATIONS OF GRAPHIC INFORMATION

2021 ◽  
Vol 1 (37) ◽  
pp. 130-143
Author(s):  
O. Gertsiy
Keyword(s):  
Comparative Analysis ◽  
Communication Systems ◽  
Video Data ◽  
Transport Infrastructure ◽  
Practical Significance ◽  
Jpeg 2000 ◽  
Advantages And Disadvantages ◽  
Graphic Information ◽  
The Cost ◽  
And Storage

The main characteristics of graphic information compression methods with losses and without losses (RLE, LZW, Huffman's method, DEFLATE, JBIG, JPEG, JPEG 2000, Lossless JPEG, fractal and Wawelet) are analyzed in the article. Effective transmission and storage of images in railway communication systems is an important task now. Because large images require large storage resources. This task has become very important in recent years, as the problems of information transmission by telecommunication channels of the transport infrastructure have become urgent. There is also a great need for video conferencing, where the task is to effectively compress video data - because the greater the amount of data, the greater the cost of transmitting information, respectively. Therefore, the use of image compression methods that reduce the file size is the solution to this task. The study highlights the advantages and disadvantages of compression methods. The comparative analysis the basic possibilities of compression methods of graphic information is carried out. The relevance lies in the efficient transfer and storage of graphical information, as big data requires large resources for storage. The practical significance lies in solving the problem of effectively reducing the data size by applying known compression methods.

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