Pub Date : 1900-01-01DOI: 10.21285/2227-2917-2022-4-579-588
A. Komarov, Victoria E. Rozina, P. Shustov
This article considers the problems of obtaining construction products in winter, along with complex technological processes, in the light of scientific achievements and analysis of influencing factors when solving thermophysical problems, as well as evaluating the results on production indicators, especially those related to economics. The accumulated domestic and foreign experience reflects years of intensive work carried out by scientists and engineers, which continues to this day. In Eastern Siberia and neighbouring regions characterised by a prolonged winter period, construction works are carried out all year round. Special attention should be paid to planning construction activities in winter and developing working documentation in view of the seasonality of work. The material and technical resources of the construction contractor should be taken into account, mainly the feasibility of the operational plans for construction and installation activities and the financing schedule. The paper includes examples of winter construction demonstrating the existing limitations, in particular the increased energy consumption. Some recommendations are given aimed at improving the quality of project documentation.
{"title":"Administrative and technological measures to save resources and energy during design and construction in winter","authors":"A. Komarov, Victoria E. Rozina, P. Shustov","doi":"10.21285/2227-2917-2022-4-579-588","DOIUrl":"https://doi.org/10.21285/2227-2917-2022-4-579-588","url":null,"abstract":"This article considers the problems of obtaining construction products in winter, along with complex technological processes, in the light of scientific achievements and analysis of influencing factors when solving thermophysical problems, as well as evaluating the results on production indicators, especially those related to economics. The accumulated domestic and foreign experience reflects years of intensive work carried out by scientists and engineers, which continues to this day. In Eastern Siberia and neighbouring regions characterised by a prolonged winter period, construction works are carried out all year round. Special attention should be paid to planning construction activities in winter and developing working documentation in view of the seasonality of work. The material and technical resources of the construction contractor should be taken into account, mainly the feasibility of the operational plans for construction and installation activities and the financing schedule. The paper includes examples of winter construction demonstrating the existing limitations, in particular the increased energy consumption. Some recommendations are given aimed at improving the quality of project documentation.","PeriodicalId":119410,"journal":{"name":"«Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost»","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121184486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.21285/2227-2917-2022-4-501-511
Ella Yu. Paveleva, Natalia Yu. Puzynya
The paper aims to identify problems associated with the assessment of residential real estate for pri-vate investors, as well as to define and characterize a private investor. A decision-making algorithm for private investors in residential real estate is presented, which allows individual characteristics of the investor to be taken into account. With the help of this algorithm, private investors can independently assess residential real estate for personal purposes. The proposed algorithm provides the basis for building a financial model of private investment in residential real estate. The study tested this algo-rithm, presenting a specific example of residential real estate assessment for investment purposes. The calculation results show the effectiveness of the proposed procedure in understanding investors’ interests in the residential real estate market. Moreover, the presented procedure can be easily digit-ized, thus allowing an unqualified private investor to use it as a practical guide in the assessment of residential real estate investment properties. In digital form, the proposed algorithm can be used as a smartphone application.
{"title":"Specifics of private investment in residential real estate in Russia","authors":"Ella Yu. Paveleva, Natalia Yu. Puzynya","doi":"10.21285/2227-2917-2022-4-501-511","DOIUrl":"https://doi.org/10.21285/2227-2917-2022-4-501-511","url":null,"abstract":"The paper aims to identify problems associated with the assessment of residential real estate for pri-vate investors, as well as to define and characterize a private investor. A decision-making algorithm for private investors in residential real estate is presented, which allows individual characteristics of the investor to be taken into account. With the help of this algorithm, private investors can independently assess residential real estate for personal purposes. The proposed algorithm provides the basis for building a financial model of private investment in residential real estate. The study tested this algo-rithm, presenting a specific example of residential real estate assessment for investment purposes. The calculation results show the effectiveness of the proposed procedure in understanding investors’ interests in the residential real estate market. Moreover, the presented procedure can be easily digit-ized, thus allowing an unqualified private investor to use it as a practical guide in the assessment of residential real estate investment properties. In digital form, the proposed algorithm can be used as a smartphone application.","PeriodicalId":119410,"journal":{"name":"«Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost»","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121322499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.21285/2227-2917-2022-4-639-651
Alexandra N. Tarasova, M. Zakharchuk
In this work, the challenges of modernising space in the scientific library of the Irkutsk National Re-search Technical University within the framework of the program of renovation of the educational envi-ronment are addressed. The interiors of the IRNTU library were used as a design object. It is neces-sary to reconstruct the educational landscape following the changes in the educational process, given the new forms and methods of teaching at the university reflected in the development of the library structure, as well as the brand. The new requirements of visitors are both simple and complex: the main advantages of the library should be openness, accessibility and comfort. On the one hand, comprehensive data should be provided through mobile, open-source library collections, which meet the growing demands of users; on the other hand, comfortable conditions should ensure this process. A modern library visitor evaluates the technological potential, as well as the organisation of the internal subject-spatial environment. The spatial model focuses on the needs of students and teachers (as the social composition of the audience in the educational organisation) for accessibility, flexibility, usability and technical resources. Social and age stratification of space dictates functional, compositional and colour solutions. The development of a new university environment is proposed, with a comprehensive design process being presented. A unique public space is created by a conceptual solution, followed by the subsequent development of a design project.
{"title":"Spatial organisation in the INRTU library with respect to renovation of educational environment","authors":"Alexandra N. Tarasova, M. Zakharchuk","doi":"10.21285/2227-2917-2022-4-639-651","DOIUrl":"https://doi.org/10.21285/2227-2917-2022-4-639-651","url":null,"abstract":"In this work, the challenges of modernising space in the scientific library of the Irkutsk National Re-search Technical University within the framework of the program of renovation of the educational envi-ronment are addressed. The interiors of the IRNTU library were used as a design object. It is neces-sary to reconstruct the educational landscape following the changes in the educational process, given the new forms and methods of teaching at the university reflected in the development of the library structure, as well as the brand. The new requirements of visitors are both simple and complex: the main advantages of the library should be openness, accessibility and comfort. On the one hand, comprehensive data should be provided through mobile, open-source library collections, which meet the growing demands of users; on the other hand, comfortable conditions should ensure this process. A modern library visitor evaluates the technological potential, as well as the organisation of the internal subject-spatial environment. The spatial model focuses on the needs of students and teachers (as the social composition of the audience in the educational organisation) for accessibility, flexibility, usability and technical resources. Social and age stratification of space dictates functional, compositional and colour solutions. The development of a new university environment is proposed, with a comprehensive design process being presented. A unique public space is created by a conceptual solution, followed by the subsequent development of a design project.","PeriodicalId":119410,"journal":{"name":"«Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost»","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123333566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.21285/2227-2917-2022-4-546-559
A. S. Dushin
This paper addresses a method for determining priority areas for ensuring and maintaining the suffi-cient reliability and efficiency of existing water supply and distribution systems, based on previously obtained mathematical models of water sampling (cross-section method) and flow distribution. The main task of the organisations, operating water supply and distribution systems, involves a high-quality water supply to consumers. Regardless of the wear of water supply and distribution systems, as well as changes in their structural state, the water having suitable parameters must be supplied to the con-sumer in the required quantity. Given the variety of regimes, modelling the operation of water supply and distribution systems indicates a wide range of their possible behaviour, for example, poor quality of supply to consumers during trouble-free operation or no impact of shutdowns of some sections on the quality of supply. It is necessary to analyse the systems and model their operation regimes using a mathematical tool. Here, probabilistic nodal reliability indices of water supply to consumers were used in mathematical models. They include Kj and Pj, decomposed into components characterising the wear of elements (sections) in the system and the reliability of supply to consumers in each of its structural states. The need to adjust the system parameters to ensure the required level of reliability of its opera-tion was assessed, with various solutions being outlined. The technical and economical comparison of possible measures allows an optimum option to be determined, prioritising the replacement of outdated elements and the construction of additional elements (sections) of the system. All stages of the sug-gested method, which can be widely used by organisations, maintaining water supply and distribution systems, are shown in the example of a system.
{"title":"Identification of priority areas for ensuring reliable and efficient operation of existing water supply and distribution systems","authors":"A. S. Dushin","doi":"10.21285/2227-2917-2022-4-546-559","DOIUrl":"https://doi.org/10.21285/2227-2917-2022-4-546-559","url":null,"abstract":"This paper addresses a method for determining priority areas for ensuring and maintaining the suffi-cient reliability and efficiency of existing water supply and distribution systems, based on previously obtained mathematical models of water sampling (cross-section method) and flow distribution. The main task of the organisations, operating water supply and distribution systems, involves a high-quality water supply to consumers. Regardless of the wear of water supply and distribution systems, as well as changes in their structural state, the water having suitable parameters must be supplied to the con-sumer in the required quantity. Given the variety of regimes, modelling the operation of water supply and distribution systems indicates a wide range of their possible behaviour, for example, poor quality of supply to consumers during trouble-free operation or no impact of shutdowns of some sections on the quality of supply. It is necessary to analyse the systems and model their operation regimes using a mathematical tool. Here, probabilistic nodal reliability indices of water supply to consumers were used in mathematical models. They include Kj and Pj, decomposed into components characterising the wear of elements (sections) in the system and the reliability of supply to consumers in each of its structural states. The need to adjust the system parameters to ensure the required level of reliability of its opera-tion was assessed, with various solutions being outlined. The technical and economical comparison of possible measures allows an optimum option to be determined, prioritising the replacement of outdated elements and the construction of additional elements (sections) of the system. All stages of the sug-gested method, which can be widely used by organisations, maintaining water supply and distribution systems, are shown in the example of a system.","PeriodicalId":119410,"journal":{"name":"«Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost»","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116160020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.21285/2227-2917-2022-4-484-491
E. S. Dediukhina
In order to improve the accuracy of estimated construction costs, a reform of the pricing policy in con-struction is being implemented by the Ministry of Construction, Housing and Utilities of the Russian Federation aimed at introducing the input method of estimated cost calculation. Therefore, the current state of pricing in the construction industry of the Irkutsk region was analysed in this work. It is the ac-curate determination of construction and overhaul costs at each stage of the project that is essential for all parties involved in investment activities, since inaccurate calculations have a negative impact on the financial planning by investors and can lead to a decrease in the efficiency of the activities and, consequently, a decrease in the quality of work by contractors. Here, problems, along with their possi-ble consequences, are identified and described. In addition, the estimated cost of maintenance and demolition activities calculated by different methods was compared; the opportunity cost of transport-ing materials for the construction of an art school in the Irkutsk region was calculated. Using the ob-tained results, the disadvantages of determining the estimated cost of construction were highlighted. Suggestions for improving the innovative methods of calculating the estimated cost were offered.
{"title":"Challenges of using innovative methods for determining the estimated cost of construction works","authors":"E. S. Dediukhina","doi":"10.21285/2227-2917-2022-4-484-491","DOIUrl":"https://doi.org/10.21285/2227-2917-2022-4-484-491","url":null,"abstract":"In order to improve the accuracy of estimated construction costs, a reform of the pricing policy in con-struction is being implemented by the Ministry of Construction, Housing and Utilities of the Russian Federation aimed at introducing the input method of estimated cost calculation. Therefore, the current state of pricing in the construction industry of the Irkutsk region was analysed in this work. It is the ac-curate determination of construction and overhaul costs at each stage of the project that is essential for all parties involved in investment activities, since inaccurate calculations have a negative impact on the financial planning by investors and can lead to a decrease in the efficiency of the activities and, consequently, a decrease in the quality of work by contractors. Here, problems, along with their possi-ble consequences, are identified and described. In addition, the estimated cost of maintenance and demolition activities calculated by different methods was compared; the opportunity cost of transport-ing materials for the construction of an art school in the Irkutsk region was calculated. Using the ob-tained results, the disadvantages of determining the estimated cost of construction were highlighted. Suggestions for improving the innovative methods of calculating the estimated cost were offered.","PeriodicalId":119410,"journal":{"name":"«Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost»","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127796261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.21285/2227-2917-2022-4-512-520
P. A. Petrov, N. S. Khokhlova
This article addresses the influence of the Smart City concept on the investment potential of urban areas due to the existing demand of society and the state to attract additional investment flows for ur-ban development. In this regard, the state pays special attention to improving the living standards of urban residents, since it leads to a positive change in the investment potential of urban areas. This pa-per identifies the mechanisms of influence exerted by the Smart City concept on the living standards of citizens, as well as the relationship between the investment potential of the area and quality of life indicators. On the basis of a systematic approach, the mechanisms of decision-making at the communi-ty level were formulated, with the necessity of developing a strategy for applying the tools of the Smart City concept being proven. It was concluded that it is necessary to review the management of urban settlements, given the current level of socio-economic development. The technological principles and mechanisms for the implementation of this concept were formulated. As a result, efficient city man-agement using modern information technology and technical solutions, provided the efficient goal set-ting and determination of performance indicators, will improve the level of investment potential of cities under the admissible competition between them within the country.
{"title":"Impact of \"Smart City\" concept on the investment potential of a city","authors":"P. A. Petrov, N. S. Khokhlova","doi":"10.21285/2227-2917-2022-4-512-520","DOIUrl":"https://doi.org/10.21285/2227-2917-2022-4-512-520","url":null,"abstract":"This article addresses the influence of the Smart City concept on the investment potential of urban areas due to the existing demand of society and the state to attract additional investment flows for ur-ban development. In this regard, the state pays special attention to improving the living standards of urban residents, since it leads to a positive change in the investment potential of urban areas. This pa-per identifies the mechanisms of influence exerted by the Smart City concept on the living standards of citizens, as well as the relationship between the investment potential of the area and quality of life indicators. On the basis of a systematic approach, the mechanisms of decision-making at the communi-ty level were formulated, with the necessity of developing a strategy for applying the tools of the Smart City concept being proven. It was concluded that it is necessary to review the management of urban settlements, given the current level of socio-economic development. The technological principles and mechanisms for the implementation of this concept were formulated. As a result, efficient city man-agement using modern information technology and technical solutions, provided the efficient goal set-ting and determination of performance indicators, will improve the level of investment potential of cities under the admissible competition between them within the country.","PeriodicalId":119410,"journal":{"name":"«Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost»","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128047977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.21285/2227-2917-2022-4-606-616
V. R. Chupin, A. K. Yoshe
The paper examines the seasonal water balance of the Abay River basin (Ethiopia) using open-access satellite data and a hydrological model representing the formation of water resources. The conducted analysis and theoretical studies indicate that hydrological modeling and remote sensing are the most appropriate tools for assessing water balance, which is essential for determining water prices and op-timizing water resource management. In this work, QGIS models were applied to estimate water deficit during the dry season and water surplus during the rainy season, using those data to determine sea-sonal water balance for six years. To this end, the study employed GeoTIFF metadata and additional information, including a map projection, coordinate systems, ellipsoids, and baseline data necessary to establish the accurate spatial reference of the file. The water balance analysis required data on evapo-ration, precipitation, surface runoff, and surface water reserves in the Abay River basin. According to the calculation results, a significant surplus of water was noted during the rainy season and its deficit during the dry season. The obtained numerical data were used to model the timing of droughts and floods, as well as to manage urban drainage systems and agricultural irrigation.
{"title":"Seasonal water balance of the Abay River Basin assessed using satellite databases and a specialized hydrological model","authors":"V. R. Chupin, A. K. Yoshe","doi":"10.21285/2227-2917-2022-4-606-616","DOIUrl":"https://doi.org/10.21285/2227-2917-2022-4-606-616","url":null,"abstract":"The paper examines the seasonal water balance of the Abay River basin (Ethiopia) using open-access satellite data and a hydrological model representing the formation of water resources. The conducted analysis and theoretical studies indicate that hydrological modeling and remote sensing are the most appropriate tools for assessing water balance, which is essential for determining water prices and op-timizing water resource management. In this work, QGIS models were applied to estimate water deficit during the dry season and water surplus during the rainy season, using those data to determine sea-sonal water balance for six years. To this end, the study employed GeoTIFF metadata and additional information, including a map projection, coordinate systems, ellipsoids, and baseline data necessary to establish the accurate spatial reference of the file. The water balance analysis required data on evapo-ration, precipitation, surface runoff, and surface water reserves in the Abay River basin. According to the calculation results, a significant surplus of water was noted during the rainy season and its deficit during the dry season. The obtained numerical data were used to model the timing of droughts and floods, as well as to manage urban drainage systems and agricultural irrigation.","PeriodicalId":119410,"journal":{"name":"«Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost»","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121794597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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