Creating an Information Environment for Construction Projects

Aim. The presented study aims to create a unified information environment for all participants of construction project implementation and to monitor key indicators of construction during its implementation.Tasks. The authors develop a methodological approach to substantiate a unified information environment for the implementation of capital construction projects; develop modules of the information environment that reflect the processes of designing a facility and managing costs at all stages of its life cycle. Methods. This study uses the methods of analysis and synthesis, graphical modeling, expert and comparative assessments, methods of pricing in construction.Results. An information environment for the implementation of capital construction projects is developed. Its major modules reflect the processes of designing and constructing a facility and managing costs at all stages of its life cycle.Conclusions. Introduction of the proposed information environment for managing construction costs at the enterprise level with an integrated design module based on information modeling technologies will improve the efficiency of interaction between the participants of the investment and construction process and will provide a unified cost management algorithm in the context of the active digitalization of the industry.

Sustainable Urban Development Strategic Initiatives

In order to ensure the implementation of the “Strategy for the Development of the Construction Industry of the Russian Federation until 2030” and the implementation of the UN resolution on sustainable development, there is a need to develop new strategic management initiatives. They should allow authorities to make inter-city comparisons, considering specific cities and their objects against the background of others undergoing similar development processes. In this article, the authors propose strategic initiatives for the management of urban facilities. In particular, the authors’ approach to the assessment of the sustainable development of housing and communal service facilities in the city is proposed. According to the authors, the housing and communal city service objects mean capital construction objects in different forms of reproduction. Moreover, the article examines both residential buildings and structures, and utility networks. The authors’ approach consists in the constant assessment of the city’s housing and communal service facilities at different stages of their operation. For this, the authors use several types of analysis: ex post analysis, ex ante analysis, and foresight analysis. For each type of analysis, the authors form a set of assessment indicators and indicate the period of the analysis. The result of the study is the development of an indicator for the assessment of the level of sustainable development of housing and communal service facilities in the city, and a roadmap for their development strategy. The roadmap is formed considering the introduction of modern end-to-end technologies and digital tools into the work of state bodies. The proposed approach, on the one hand, considers the internal complexity and heterogeneity of the city’s housing and communal service facilities. On the other hand, it is a simple tool for the making of effective management decisions by power structures, as it uses data which are available on a regular basis.

AUTOMATION OF CALCULATION OF HEAT-SHIELDING CHARACTERISTICS OF WINDOWS

The use of information modeling tools at all stages of the life cycle of a capital construction object allows you to analyze design information in order to make the most correct decision, while significantly reducing the uncertainty of processes by increasing the amount of data available for analysis. One of the labor-intensive processes at the design stage is the selection of the most suitable structural elements, including translucent structures. As part of the work, the normative and reference information related to the calculation of the heat-shielding characteristics of building structures has been analyzed, scientific developments and publications devoted to the automation of the implementation of heat engineering calculations using various software tools are considered. For the purpose of the study, two indicators were calculated: the normalized value of the reduced heat transfer resistance and the reduced heat transfer resistance of the window. To solve the problem, such automation tools as the Dynamo visual programming tool and the Python programming language were used, with the help of which a script was developed for calculating the thermal performance of windows for use in Autodesk Revit (Autodesk, Inc., USA). As part of the study, it was determined that the combined use of the Dynamo visual programming tool and the Python text programming tool, expanding the functionality of Autodesk Revit, made it possible to automate the task of calculating the reduced heat transfer resistance of a window and the normalized heat transfer resistance, taking into account conditions of a specific construction region.

DIGITAL TRANSFORMATION OF THE WORK OF A TECHNICAL CUSTOMER AT THE STAGES OF THE LIFE CYCLE OF A CAPITAL CONSTRUCTION OBJECT

The digital development of construction is an important task, the achievement of which will lead to a more comfortable life for citizens, to an increase in the manufacturability of the construction business and more efficient management of urban planning activities by state bodies. The relevance of the introduction of digital technologies in construction is determined by a set of tasks that are set taking into account the development of the entire digital economy of the country. Currently, the government of the country has organized full-scale activities to achieve digital maturity of economic sectors. This article analyzes the digital transformation of the construction industry, examines state goals and tools to achieve them in the field of digitalization of construction. Problems of innovative development of the construction industry require the integrated implementation of digital technologies in solving various problems in the production of building materials, construction design and construction production itself. The main purpose of the study is to analyze the digital transformation of the technical customer's work at the stages of the life cycle of a capital construction object - pre-design, design, construction stage, overhaul, reconstruction, demolition, as well as separately the stage of restoration of a cultural heritage object. When analyzing the activities of a technical customer in the context of the digital transformation of the country's construction industry, at each stage of the life cycle of a capital construction object, the procedures and necessary services that have passed into electronic form are considered in relation to the conditions of the city of Moscow, and important tasks that require the fastest digitalization are highlighted.

Analisis Faktor-Faktor yang Memengaruhi Nilai Perusahaan Manufaktur yang Terdaftar di Bursa Efek Indonesia

Firm value is closely related to shareholder wealth and become the main focus of investor decision making. This study analyzes the impact of capital design, productivity, profit strategy, firm development, also, firm size on the value of assembling organizations. Purposive testing technique was utilized and gotten 47 assembling organizations with 3 years perception, with all out 141 examples. Various direct relapse examination was utilized as a scientific procedure in this review. Results showed that profitability positively affected firm worth. While capital design, profit strategy, firm development, and firm size were found to have no impact on firm worth. Organizations are encouraged to improve and focus closer on factors, for example, productivity that can influence the worth of the organization. Keywords : The Worth of the Organization; Capital Construction; Dividend Strategy; Profitability; Company Development; Company Size.

Developing Environmentally Sustainable and Cost-Effective Geopolymer Concrete with Improved Characteristics

Improving the efficiency and quality of construction mainly depends on the cost of building materials, which is about 55–65% of total capital-construction costs. The study aimed to obtain geopolymer fine-grained concrete with improved quality characteristics that meet the construction field’s sustainable development criteria and that have environmental friendliness, economic efficiency, and advantages over competing analogues. The dependences of strength characteristics on various compositions of geopolymer concrete were obtained. It was found that the most effective activator is a composition of NaOH and Na2SiO3 with a ratio of 1:2. The increase in the indicators of the obtained geopolymer concrete from the developed composition (4A) in relation to the base control (1X) was 17% in terms of compressive strength and 24% in tensile strength in bending. Polynomial equations were obtained showing the dependence of the change in the strength characteristics of geopolymer concrete on the individual influence of each of the activators. A significant effect of the composition of the alkaline activator on the strength characteristics of geopolymer fine-grained concrete was noted. The optimal temperature range of heat treatment of geopolymer concrete samples, contributing to the positive kinetics of compressive strength gain at the age of 28 days, was determined. The main technological and recipe parameters for obtaining geopolymers with the desired properties, which meet the ecology requirements and are efficient from the point of view of economics, were determined.

Information modeling in the context of highways property complex management

This article reveals the topic of the implementation of information modeling in the legislation of the Russian Federation. The world experience of creating information models of capital construction and the main features of control and standardization of BIM formation are considered. The analysis of the existing legal framework is carried out in relation to the responsibilities of organizations for the formation and maintenance of information models. The scheme of the life cycle of the model was developed. The article is related to the field of highways property complex management. The main features of the formation of BIM roads, their systematization, storage and regular updating were identified. As a result of the study, a geoportal of highways was developed for the modernization of the land and property complex management of highways. It serves as the basis for geoinformation support for information modeling, cadastral, urban planning, inventory and other works on highways. Conclusions and recommendations for the further development of this area in the territory of the Russian Federation are presented.

The formation essence of the construction work value in the repair and reconstruction projects implementation

The article is devoted to the construction work value formation in the for various reproduction forms of capital construction objects. The main emphasis is made on repair and reconstruction projects. In particular, the authors examine in detail the essence and structure of such concepts as "price", "value" and "investments" in the aspect of their application by the investment and construction project main subjects. The authors offer their scheme for visualizing this process. As a result, the authors trace the modification entire chain of "price" category the during the repair and reconstruction projects implementation.

Сloud technologies application analysis at all phases of the project life cycle in terms of the their implementation and use risks

In the article, the authors analyze сloud technologies application at all phases of the project life cycle in terms of their implementation and use risks. This analysis makes it possible to determine: is there currently a technical possibility to remotely manage the buildings and structures construction and operation, whether an information appears sufficient amount in the reporting documents for making management decisions. In addition, the cloud structuring storage allows an applied digital technologies assessment the construction industry and the housing and utilities. The practical application effectiveness of cloud technologies at the stage of operating capital construction facilities provides examples in the article also.

Social Capital, Technological Empowerment, and Resilience in Rural China

In the post-pandemic era, the need for resilient and flexible COVID-19 prevention strategies in rural areas has become increasingly prominent. Based on a sample of 2229 rural residents nationwide, the Structural Equation Model was adopted to analyze the influence of social capital and technological empowerment on pandemic resilience in rural areas. The proportion of diversity, adequacy, and effectiveness of pandemic prevention measures taken by communities was about 57%. Social capital (0.667) and technological empowerment (0.325) had a significant positive impact on rural resilience and pandemic prevention. Social capital plays a mediating role between technological empowerment and pandemic resilience in rural areas. The risk of disease in society stimulates the inherent social capital factors in villages, with the individual social network generating strong social support. Technological empowerment can not only provide new methods for the connection of social capital, but also bring new means for rural authorities to improve their governance capabilities. Social trust in social capital plays an important role in rural resilience and pandemic prevention. The indirect effect of technological empowerment through social capital on pandemic resilience is greater than its direct effect. Social capital construction is the key to rural resilience and pandemic prevention.