bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preservation and Adaptation of Historical Manor Complexes as an Organic Component of the Sustainable Development Concept
Authors: Lukonina T A , Aksenova I V 
Published: March 2020

Abstract
The purpose of this article is to address such problem as preservation of the historical heritage objects and more specifically – the historical manor complexes through the prism of the sustainable development principles. The set task is to identify the existing problems in such field as restoration and capitalization of architectural heritage as well as to articulate recommendations on their resolution. The methods of conducting the work: analysis of the legislative base, statistical data, and case studies, as well as juxtaposition of the subject being researched with the sustainable development principles. The study has resulted in the conclusion that preservation of the cultural heritage objects is one of the priority tasks in the paradigm of sustainable development of architecture, residential settlements and the society. Having identified the major problems of the restoration sphere, the author has formulated briefly the methods for their resolution at the macro-, micro-, and mezo-levels.
The Level of Influence of Human and External Risks on a Construction Company’s Sustainability
Authors: Abramov I , Al-Zaidi Z A K 
Published: March 2020

Abstract
The impact human and external risks in construction projects, which significantly affect the production activities and sustainable functioning of construction companies is very relevant. This article describes the human and some external risks affecting the sustainability functioning of construction companies. The authors examined internal risks staff can be exposed, as well as external risks that may affect the work of construction companies, how they are analyzed and evaluated, as well as identified there reasons to increase the competitiveness of contracting companies to manage any potential risks during construction and after operating facility, This will prevent losses and increase company’s sustainability in the labor market. this research paper aims at analyzing the impact of human risks, on sustainability and assessing, as well as determining their frequency and the likelihood of occurrence of these risks, their impact on the construction project and on a company. Mathematical and statistical methods as well as algorithms were used in this research. This research indicates that risks of all kinds shall be accurately, determined in addition to indicating the importance of each of them and assessing the likelihood occurrence of these risks. To determine methods and procedures that could decrease the chances of these risks leading to increased construction company’s sustainability in the labor market.
Methods of Parametric Geometric Modeling in the Design and Construction of Shells of Gaussian Curvature
Authors: Gromov V , Karimova O 
Published: March 2020

Abstract
The article discusses the method of minimizing costs in the design and construction of spans (shells) with the use of 3D construction printers. The results of the developed program in AutoLISP language for optimizing the surface of a shell of positive Gaussian curvature are presented. The technique of developing a model of a complex projected object for the implementation of a new class of applied problems in the field of additive technologies in construction is presented. The fundamental possibility of the process of extracting and generating new knowledge about the projected object is shown, consisting in replacing it with the corresponding model obtained by formalizing expert information. The construction of mathematical models of complex objects is performed in a fuzzy environment using linguistic variables, fuzzy numbers and arithmetic operations on them. The solution to such problems is based on the application of traditional methods widely used in technical applications to the analysis of fuzzy systems. The mathematical basis of the traditional approach is the algebra of fuzzy numbers.
Modified Phenol Formaldehyde Reactive Oligomers
Authors: Bruyako M , Grigoreva L 
Published: March 2020

Abstract
Polymeric heat-insulating materials based on casting phenolic foams have low thermal conductivity, reduced fire hazard, high operating temperatures, low cost of the starting components, and biostability. Due to these properties, they are superior in technical and economic indicators to mineral and other polymeric heat-insulating materials used in the construction industry. Low strength, tendency to smoldering, and high toxicity are significant limiting factors for the wider use of thermal insulation materials based on phenol formaldehyde oligomers. Modification of phenol-formaldehyde oligomers can improve the operational properties of materials and products based on them. One way is to introduce chemically active modified additives into the feedstock. As such compounds, metal chlorides of variable valence (FeCl3) and sodium hexafluorosilicate (Na2[SiF6]) were used in the work. It was established by studies that iron (III) salts of 2.0–2.6 wt.% are most effective in reducing toxicity. The simultaneous introduction of sodium hexafluorosilicate in an amount of 0.5 wt.% Allows to reduce the material consumption of products based on phenol formaldehyde oligomers.
The Influence of Structure Formation Conditions of the Composite on the Mass Transfer Processes
Authors: Fedosov S V , Roumyantseva V Eu , Konovalova V S , Goglev I N 
Published: March 2020

Abstract
The article describes the phenomenon of moisture transfer in the system “composite non-metallic reinforcement – cement mortar” at the stage of hardening of the composite. The processes of moisture transfer occurring during the structure formation have an impact on the water-cement ratio of the cement mixture. The deformation and operational characteristics of cement concrete, its structural and phase composition, porosity, density and corrosion resistance depend on the water-cement ratio. To obtain a mathematical model of moisture transfer in the formation of the cement matrix, the equations of mathematical physics, the equations of unsteady mass transfer and the differential equations of mass conductivity of parabolic type are used. Mathematical models of mass transfer processes make it possible to predict the change in the characteristics of the composite at the hardening stage and to obtain concretes with specified properties. The presented physical and mathematical model of moisture transfer for the system “cement concrete – composite reinforcement” allows to take into account the change in water-cement ratio at the stage of hardening of the composite and to establish its influence on the structure formation of the composite and its performance characteristics. The formulated physical and mathematical problem can be solved for special cases by the method of microprocesses.
Integrated Formation of Urban Environment
Authors: Shipilov A G , Movchan E A 
Published: March 2020

Abstract
The article examines one of design architects training approaches, when it is necessary to form the skill of complex building of urban environment. The approach is based on the design study. Two aspects are considered: eco-design and constructing design-patterns. The aspect of eco-design aimed at introduction of principles of environment ecologization on the projects at the training stage through the latest techniques of introducing the aspect in question into design architects academic disciplines. This resulted in experimental models built on human interaction with air and aquatic environment, solar radiation and landscape. The aspect of constructing design-patterns aimed at investigating possibilities of modular and combinatorial approaches in designing objects of environmental design and small architecture. This resulted in modular system project satisfying the built-in requirements.
Dynamic Comfort Inside the Building under Microseismic Influence from the Movement of Vehicles
Authors: Bunov A A , Dorozhinskiy V B 
Published: March 2020

Abstract
Vibration and it’s high background bring a danger to human health. According to the intensity of fluctuations in the urban environment transport, especially trams, trains, including metro bring the greatest impact on human. This article investigates the reaction of high-rise building on microseismic influence of the motion of the external transport. There are determined the minimum reserves of dynamic comfort for different frequencies of impacts, as well as potentially dangerous average frequencies for the studied building. A comparison of the results of the calculation of the building using explicit and implicit schemes of integration of the equations of motion is made. Conclusions about the feasibility of using implicit integration schemes for solving problems of this type are made.
Model of Terraced House Construction on Complex Terrain
Authors: Giyasov A 
Published: March 2020

Abstract
The analysis of the space-planning solution of terraced houses constructed on the slopes is carried out. It is a rational method of building residential houses whose advantages are the presence of large landscaped terraces and their isolation, which gives the apartments a resemblance to individual houses, compactness of building and formation of a comfortable environment in the rooms, integration with the terrain. At the same time, the multi-tiered location of houses along the slope gives the advantages to the development of multi-storey construction.
Methods of quantitative and qualitative assessment of climatic events based on geomorphological changes allowed developing a grapho-analytical method for assessing the microclimate of complex terrain, which is intended for residential construction.
Due to microclimatic features, the search for ways of construction on the slopes made it possible to form the planning and spatial structure of terraced houses of different heights on complex terrain, depending on the high slope steepness degree.
Applying the Automated and Robotic Means for Increasing Effectiveness of Construction Projects
Authors: Malakhov A V , Shutin D V 
Published: March 2020

Abstract
The paper considers increasing effectiveness of construction of bricks and blocks by applying mobile masonry robots. On the example of a specific object, the rates for its construction using manual labor and robotic means are considered. The results show that applying robotic means allows reduce costs for bricklaying 3-7 times in comparison with manual labor depending on method of accruing salaries. Other positive effects of using bricklaying automation, such as reducing construction time, increasing the quality of the result and simplification of staff management, are considered.
Replacing Electrical Wiring in Large-Panel Buildings
Authors: Zhabyko E , Skurtol I , Кovalevsky A 
Published: March 2020

Abstract
The article is devoted to complex solution of repair difficulties facing owners of apartments in old bearing-wall buildings. The example of the series 1-464A presents the experience of repairing apartments with the use of modern materials and technologies. On the basis of theoretical analysis of the range of problems in question the principal stages of repairing an apartment in a bearing-wall building are examined with total electric wiring replacement to improve the performance of the dwelling. The main technological operations are described; the features of the use of electrical components and finishing materials are given.
Impulse Rotators with Kinematic Excitation of Oscillations
Authors: Antipina E S , Zhilin S N , Kukinova G V 
Published: March 2020

Abstract
Increasing the efficiency of technological process is achieved by applying oscillations in the movement direction of the working tool active point. The proven advantage of the dynamic impact on the chip at energy-intensive technological processes, for example drilling, wasn’t used because of the lack of appropriate mechanisms. The proposed mechanisms can be used in specific conditions. An analysis of their constructive changes allows to predict the development direction of impulse rotators and new ways for creating torsional oscillations and devices for their implementation with possibility of maximizing the use of the connected energy on work process and minimum losses in the rotation drive.
Experimental Studies of the Strength and Rigidity of Screw Connections of Covers with Wooden Ribs
Authors: Labudin B V , Popov E V , Tyurikova T V , Nikitina T A , Ruslanova A V 
Published: March 2020

Abstract
The results of a study of the shear stability of single-slice joints on screws of wooden ribs and wood-composite covers of structural plywood (SP) and oriented-strend boards (OSB) are presented. The plastic behavior of the destructure of the joint is established, the coefficient of safety during plastic fracture is determined, the bearing capacity and stiffness coefficient are calculated. A plan for a 2-factor experiment with varying factors at 3 levels has been compiled, regression equations have been obtained that made it possible to calculate the stiffness coefficient of screw joints as a function of the diameter of the screw and its embedment in the rib, and response graphshave beendrawn. The scientific conclusions and recommendations based on the performed experimental studies are formulated. It can be used in design of plate-ribbed structures of floors and walls with covers from wood-composite materials.
Problems of Housing Affordability Improvement and Development of Residential Construction in Vladivostok
Authors: Bekker T , Buzina M , Tupikova O 
Published: March 2020

Abstract
The present article is dedicated to the problem of residential housing, investigation of factors reducing affordability of housing and impeding further development of residential housing construction in Vladivostok – capital city in the Far Eastern Federal District of the Russian Federation.
The target indicators which are used in federal programs/projects and reflect the ongoing trends in housing affordability for the local population are duly considered herein. The necessity to update and further clarify calculations of housing affordability index is duly substantiated. The special model for evaluation of housing affordability under governmental programs implemented at local municipal level with due consideration for ongoing mortgage credit lending, demand patterns, population income levels and demographic factors is herewith developed. Assessment of possibilities for purchasing apartments of specific space among different groups of population and family types has been duly made. The main factors impeding housing affordability in Vladivostok have been identified and the analysis of their influence on housing affordability index (based on the “sensitivity analysis” method) has been duly carried out.
Analysis of housing availability to the local population and actual rates of commissioning the brand new residential housing in Vladivostok within 2010-2018 has been carried out. The revealed indicators are significantly lower in comparison with the national average in Russia and do not match the levels set forth in the federal and municipal state programs. The necessity to increase new housing construction volumes in almost three times is clearly substantiated. The main problems impeding further development of construction industry and best solutions possible have been identified and described.
United Digital Platform for Efficient Construction Development
Authors: Ryzhkova A , Ginzburg A. 
Published: March 2020

Abstract
Modern development of technologies allows the countries’ governments to create completely new approaches to doing business. Digitalization of industries allows to get rid of a counterfeit product, minimize the costs of resources: time, materials, labor and finances. Digitalization of the construction industry can become one of the key moments of the country’s entire economy transition to the digital age, while ensuring sustainable development of cities. The construction has a high multiplier effect: one workplace in construction gives up to 15 jobs in other sectors of the economy. Sustainability of development can be ensured by reducing the costs of resources and improving the quality of products. The authors of the article consider the possibilities to create conditions for the sustainable development of cities through the sustainable development of the construction industry on the territory of the Russian Federation.
Assessment of Compliance with Regulatory Requirements of Life Support Facilities of Modern Neighborhoods
Authors: Kolchunov V I , Gordon V A , Bakaeva N V , Cormina A A 
Published: March 2020

Abstract
It is proposed to evaluate the level of comfort of the urban environment on the basis of a methodology for quantifying the feasibility of city functions: livelihoods, providing entertainment and recreation, creating conditions for power, charity, gaining knowledge, realizing creative needs, strengthening connections with nature. It is proposed to introduce a system of quality indicators of planning and design solutions for the territories of urban housing estates as indicators that quantitatively reflect the level of implementation of city functions and their components. The study developed an algorithm for calculating indicators characterizing the correspondence of city functions to the standard values of parameters adopted for assessing the quality of the state of its elements. The numerical implementation of the indicator calculation algorithm is performed for the city’s Life Support function, which plays a key role in dramatically improving the comfort of the urban environment. For a more complete analysis of the effectiveness of urban decisions aimed at increasing human potential and satisfying the rational needs of a person, as well as for the comprehensive consideration of comfort characteristics, it seems possible to carry out a scientific substantiation of an extended list of indicators for the implementation of city functions and the accessibility of socially significant everyday objects.
Comprehensive Approach to Multi Comfort Urban Space Design in High-Density of Milan Development
Authors: Burukhina O S , Tsarkova V S , Maltceva I N 
Published: March 2020

Abstract
Relevance of the research is conditioned by the necessity to search for a new model of urban planning formation of housing estates in the constrained conditions of already established cities. With the modern cities’ expansion, investors, urban planners, architects and developers face a difficult task to develop urban areas that are in a dense ring of buildings and structures. Herein it should consider that large cities require multicomfortable apartment buildings, although they are in high-density areas. This paper represents the results of project work upon a social residential complex that meets the criteria of energy efficiency and multi-comfort in high-density development of the Crescenzago district (Milan, Italy). The project is based on the principles of eco-certification according to the BREEAM standard. As part of the project, to ensure the sustainable development of the territory under consideration, climatic, urban, social and cultural factors were analyzed; urban planning and architectural concepts of the site development, as well as constructive and engineering solutions for residential multi-apartment buildings have been created. The paper provides the author’s design solution for a complex of residential buildings, organically integrated into the existing urban space development. This is a qualitatively new residential development format that meets all modern requirements for providing thermal, visual, acoustic comfort, safety standards, as well as the concept of sustainable development..
Analytical Solutions for Taking into Account Composite Action of Reinforcement and Concrete in the Evaluation of Stresses in the Principal Planes of Girder Web Plates with Prestressed Reinforcement
Authors: Belutsky I Y , Alekseeva I D 
Published: March 2020

Abstract
The article addresses the issue of feasibility of strengthening the girders in road bridge superstructures by intensifying the reinforcement of web plates. The article also discloses the need to consider the composite action of concrete and reinforcement for the principal planes of girder web plates in superstructures. A methodology for calculating the effectiveness of the proposed superstructure reinforcement option is presented in this publication, as well as the results of assessing the stress state of structures according to the standard project of the series 3.503.1-81, reinforced in accordance with the methodology described in this publication. The obtained results confirm the validity and effectiveness of the proposed solutions for strengthening the superstructure, as well as the validity and applicability of the methodology which helps to consider the composite action of concrete and reinforcement in girder web plates in road bridge superstructures.
Modeling of Internal Efforts in a Cargo Beam of the Gantry Crane from the Cargo Cart
Authors: Kudryavtsev Y , Gavrilenko A 
Published: March 2020

Abstract
Article describes processes modeling of internal efforts in various kinds: analytical; program; tabular and graphic in any cross-section of the cargo beam of the crane from moving of the cargo cart. Following results of scientific researches are received: analytical expressions of internal efforts in any cross-section of a cargo beam of the gantry crane depending from displacement of cargo cart; algorithms and a complex of programs for automation of calculation and graphical representation of internal efforts in system Mathcad. The proposed procedures of modeling of internal efforts in any cross-section of a cargo beam of the gantry crane from moving cargo cart allow to reduce time and cost for performance of such calculations at least in ten times and effectively to carry out researches when cargo beam parameters, cargo cart parameters and materials change.
Air Conditions Mod in Building during Local Fire
Authors: Biriukov S 
Published: March 2020

Abstract
The statement of the problem of the air condition of a building in case of a local fire in a room differs from the traditional form of recording the excess pressures at each considered point of the external or internal environment. In this paper, an example of calculating the air regime of a seven-story residential building in case of a fire in an apartment hall is considered.
The Influence of Different Types of Reinforcement on the Deformation Characteristics of Clay Soil in the Conditions of Seasonal Freezing and Thawing
Authors: Abu-Khasan M , Egorov V 
Published: March 2020

Abstract
The article aims to increase the bearing capacity of the base by means of using reinforcement. A comparative analysis of the impact of different types of rein-forcement on the deformation characteristics of the soil in the Northern climatic zones is carried out. In this article, the parameters of clay soil were considered, which were used to calculate the optimal method of stabilization of the building. The value of the study was justified, despite the fact that clay soils have a high strength index, without additional design solutions, seasonal freezing and thaw-ing can lead to an emergency.