Development Of Construction Industry Research Articles

Multiple Complex Weather Tolerant and Low Cost Solution for Helmet Detection

With the development of construction industry, the traditional manual inspection has been gradually eliminated due to many shortcomings, such as low efficiency, time-consuming and labor-intensive. Meanwhile, the current helmet detection model on the market does not consider the interference of complex weather, which greatly affects the detection performance. A low-cost helmet detection scheme is proposed in this paper, which can be used in various complex weather environments such as heavy rain, fog and snow. Firstly, the monitoring video of the construction site is sliced as the helmet wearing detection data set, and improved on the basis of Yolo v5s model to make it meet the requirements of helmet detection. Secondly, data augmentation and oversampling are adopted to improve the accuracy for small targets. Finally, K-means++ clustering algorithm is utilized to change the dimension of anchor box for better detection performance, and MSRCR algorithm is used to filter complex weather conditions. Compared to the original Yolo v5s, the mean average precision of the proposed scheme achieves 94.27% under complex weather conditions. For images with a size of 300*300, the detection speed can reach 63 frames per second. Therefore, the scheme can realize a high-precision, real-time and low-cost helmet detection system which can be used in a complex weather environments effectively.

РОЗВИТОК ПОТЕНЦІАЛУ ПІДПРИЄМСТВ БУДІВЕЛЬНОЇ ГАЛУЗІ В УМОВАХ ЦИФРОВІЗАЦІЇ

The article determines that the COVID-19 pandemic, despite its large-scale pressure on the population and healthcare system, resources and economies of all countries without exception, has become a unique driver that has set the impetus for the implementation of grand transformations. Digitalization of the construction industry takes place both through the introduction of digital tools and through the automation of business processes and the transition to digital means of communication. It is argued that the domestic construction industry lags far behind global digitalization trends. Currently, most domestic construction companies are in a difficult financial and economic situation caused by a sharp drop in demand for construction services as a result of the war, which limits their potential for digital transformation. Given the global trends in digitalization, the article reveals the content of digital technologies and their capabilities in the field of ensuring the development of the potential of construction industry enterprises, which made it possible to identify the advantages and disadvantages of their use. The article reveals the obstacles that hinder the digital development of the domestic construction industry, the key ones being irrational and inefficient use of resources, primarily technological, material and human resources; high turnover and systematic shortage of personnel; low level of implementation of digital construction tools; lack of definition of national strategic priorities for the development of the construction industry, which leads to isolation of construction companies and delay of their own digital transformation processes. The concept of developing the potential of construction industry enterprises through the introduction of digital technologies has been formed, which defines the purpose, principles, tasks, and digital transformation tools in the following areas: creating an effective management decision support system; optimizing project activities and business processes; forming a competent team of employees and a favorable corporate culture. The key goal of this concept is to ensure the development of the potential of construction companies through the implementation of digital transformations.

Organizational issues during the liquidation of buildings

In the presented study, an analysis of issues related to the organization of construction processes during the liquidation of buildings under various conditions was carried out. The main questions in this case are questions of analysis of the initial data, questions of the choice of means of mechanization and the selection of the numerical and qualification composition of workers. In addition, the analysis of factors influencing technical and economic indicators is of great importance. Under the liquidation of objects means the demolition and dismantling of buildings. Demolition and dismantling of buildings can be carried out under various conditions. These conditions can be classified according to the following criteria: by the type of construction activity, within the framework of which the liquidation of the object is carried out; by type of objects to be liquidated; by designation of objects subject to liquidation, to which special conditions are imposed; according to the conditions of spatial limitation of the production of works; according to the conditions of the organization of work. Demolition and dismantling works are extremely dangerous for the life and health of people involved in the liquidation of the facility and the population living or located in close proximity to the construction site and also bear the risk of harm to the environment, movable and immovable property of individuals and legal entities, persons and engineering infrastructure. Therefore, to ensure the safety of the work performed, it is necessary to have a set of standards that establish the rules for the design of organizational and technological documentation for demolition or dismantling, the performance of work during the liquidation of the facility and strict control over the implementation of technology and safety. The study of the processes of demolition and dismantling of buildings for residential and civil purposes showed that there are many unresolved issues related to the organization of this type of construction work. When organizing liquidation, it is necessary to make scientifically based decisions. The feasibility study is based on taking into account the influence of various factors on the construction industry and evaluating a set of solutions for planning the execution of work. The study of this issue will reduce the costs of organizing this type of work and make science-based decisions. The development of a technical and economic mechanism is a necessity for the development of the modern construction industry.

ДЕРЖАВНЕ РЕГУЛЮВАННЯ БУДІВНИЦТВА СОЦІАЛЬНОГО ЖИТЛА

Solving the problem of increasing the level of housing provision of the population, which is acute for the national economy and society, cannot be solved without an effective system of state regulation. One of the areas of state regulation of housing construction is to promote the development of social housing construction. The solution of this task should take into account the strategic socio-economic priorities of the state and regional housing policy and be based on the principles of sustainability, justice, democracy and economic affordability of housing for socially disadvantaged sections of the population. The article is devoted to the study of the current levers of state regulation of the construction of social housing in Ukraine and the justification of promising forms, methods and tools of state intervention. The content of the "social housing" category and the peculiarities of its use were studied. Familiarization with the current provisions of the legislative and regulatory framework, which regulates the legal basis of state regulation of social housing construction, was conducted. The main problematic aspects of housing construction in Ukraine are summarized. Based on the systematization of research results, the author's scheme of the system of state regulation of social housing in Ukraine was developed. A generalization of the world practice of state intervention in the development of the processes of providing the population with social housing, state regulation of the construction and rental markets of social housing is carried out. Prospective forms, methods and tools of further practice of state regulation of social housing construction in Ukraine have been determined. It was concluded that a more active participation in the system of state regulation of social construction in Ukraine should be played by local self-government bodies, public organizations, partnerships and specialized associations. The key principles of the further development of the social housing construction industry and its state regulation outline the principles of sustainability. It was determined that social and environmental sustainability should become the strategic priorities of state regulation of social construction in the future.

The estimate of innovative development of construction industry in the Kazakhstan

In this paper, based on OECD statistical data for 1995-2018 and the Input-Output model, a systematic study of the industrial and innovative development of the construction sector of the Republic of Kazakhstan was carried out. As, for the Produce / selling and Purchase / buying, the Gross value added and Final demand, the Import and Export transactions of structural agents, estimates are given and the bands of the left-hand critical, the left-sided moderate, the equilibrium, the right-sided moderate, the right-sided critical are confidence intervals constructed. Further, based on the erogeneity of the value of the standard deviation, the distributions of the absolute frequencies of the flows of transactions along the bands of confidence intervals are estimated, which, in turn, allow us to assess the state and condition of equilibrium of the industrial and innovative development of the construction industry of the Republic of Kazakhstan.

A big-data-based recurrent neural network method for forest energy estimation

In this paper, the recurrent neural network algorithm of big data is used to conduct in-depth research and analysis on the estimation of forest energy, and the corresponding forestry construction and biomass energy industry development are proposed. Firstly, by introducing a non-negative variable, the bounded constrained underdetermined linear system is transformed into a time-varying system consisting of linear and non-linear equations. Meanwhile, the actual situation of industrial raw material supply of forest biomass is explored by considering the technical level of collection, transportation, and storage. Then, three different alternative scale scenarios are designed to explore the development dynamics of the forest biomass industry in Guizhou under different levels of development and to propose optimization schemes and policy recommendations accordingly. Finally, the simulation results show that in terms of energy efficiency, economic benefits, and environmental benefits, the proposed mehtod can achieve carbon dioxide emission reduction benefits of about 46.17% and increase the economic benefits of carbon dioxide trading by 35.69%.

Potential of Computed Aided Facility Management for Urban Water Infrastructure with the Focus on Rainwater Management

This article focuses on the information modeling of buildings and its subsequent extension to the information modeling of cities, which can be considered as the main topics of the construction industry development. It offers new knowledge for city management, facility management and other fields of construction sector. Information modeling of buildings and cities creates a suitable basis for the creation of various simulations (acoustic, thermal, environmental influence, sunlight or the spread of pollution) and analyses. Simulations and results obtained from them can help us in the decision-making phase, they predict problems or unexpected situations during the life cycle of cities and buildings, and thus make it possible to prevent their occurrence. In the second part of the contribution, an innovative model, the so-called R-WIM, is presented. BIM modeling methods were used for the research and extended to the public environment. The expansion of the public environment digitization enables to obtain a sufficient amount of information about the public space and then subsequently combine them with static weather data. This model deals with Urban Water Infrastructure with the focus on Rainwater Management and has been developed for the particular needs of individual municipalities in the process of solving problem situations associated with rainwater, which is very current due to climate change, and municipalities require appropriate tools to predict the behavior of rainwater so that various compensatory measures can be created.

Contributing Elements and Issues to Strategic Management in the Construction Industry Among Small and Medium Enterprises: A Case Study in South Africa's eThekwini Region

Small and medium-sized enterprises (SMEs) are vital to the economy and have helped it grow, but they still have a high failure rate. Many businesses fail within the first few months of operation due to a lack of strategic planning. This study aimed to identify persuading factors that contribute to strategic management to improve performance and categorise challenges faced by SMEs in implementing a strategic plan in the eThekwini region of South Africa. The study adopted a quantitative research approach, and the population of interest for the research includes small and medium construction companies, which were sourced via the Construction Industry Development Board (cidb) registry. An online survey tool was used to distribute the questionnaire to 145 small and medium businesses. The data were analysed using descriptive and inferential statistical tools and exploratory factor analysis (EFA). The study's findings reveal that most eThekwini-based SMEs in the construction industry use strategic management practices to improve their business performance. The key factors for strategic management in SMEs, such as improving decision-making processes, increasing productivity, and gaining a competitive advantage, demonstrated high levels of agreement among participants regarding improving business performance. This study also found widespread agreement on the challenges of implementing a strategic plan in an organisation. Therefore, small and medium-sized enterprises (SMEs) must develop procedures and policies to deal with the difficulties that arise when drafting a strategic plan. This will ensure that strategic planning works in their operations. This can be accomplished by implementing strategic management into SMEs training programs offered by government and tertiary institutions that support SMEs. The government should also improve education and broaden its business skills curriculum. Keywords: Business, Construction, Performance, Planning, Strategy, South Africa.

Greening of production as one of the strategic vectors of the construction industry development of Ukraine

It was established that the construction industry is one of the most important industries of industrial production, which depends on the efficiency of the entire economic system in the country, its sustainable development, and, therefore, a powerful source of man-made load on the environment. The purpose of the work is to determine the role of greening production as one of the strategic vectors of the construction industry development of Ukraine in the post-war period. It is substantiated that the main signs of production greening are saving energy, changing energy sources to ecologically "clean" ones, and saving resources. The main environmental threats with an increase in the production of the construction industry have been identified, which also require the implementation of certain innovative measures, namely: the transfer of enterprises of the construction industry, in particular, enterprises producing building materials, from the economic aspect of activity to the ecological and economic one; reconstruction of individual technological lines; development of a legal framework that would regulate and control the choice of the technological mode of waste incineration; conducting biochemical soil monitoring in the 30-50 km zone of cement enterprises; implementation of measures for comprehensive greening of the construction industry, aimed at reducing the negative impact on the environment. It is proven that the effectiveness of greening depends on its management system, which promotes and ensures the ecological orientation of restructuring organizational forms and methods of management (organizational management, management functions and economic mechanism). The effectiveness of environmentalization of the management system, which involves ecologically oriented structural restructuring of organizational forms and management methods (organizational management structures, management functions and its economic mechanism), has been proven. The need to consider the environmental factor in the implementation of forecasting and production planning processes, its organization, material and technical support, investment processes, marketing activities, pricing and labor stimulation is substantiated. Keywords: environmentalization, production, construction industry, innovative technologies, strategic development, sustainable development.

Research on Urban Construction Waste-Based on Evolutionary Game Analysis

With the vigorous development of China's construction industry, while promoting the modernization, it also brings the increasingly serious construction waste pollution problem. The effective treatment of construction waste is conducive to improving people's quality of life and promoting the sustainable development of the construction industry. Therefore, this paper constructs an evolutionary game model of construction waste collaborative treatment based on the condition of finite rationality and the evolutionary game theory, and analyzes the behavior choice of each subject under different situations. The results show that based on the principle of maximizing their own interests, when the income exceeds the loss, they tend to actively deal with the problem, and the cooperative treatment of each subject can maximize to solve the pollution problem of construction waste.

Tensile strain-hardening cementitious composites and its practical exploration without reinforcement: A review

Steel is widely used as reinforcement for brittle structural materials such as concrete structure and unreinforced masonry structure (URM). However, the job wasted in steel reinforcement installation and the following corrosion hinder the development of construction industry. The emergence of strain-hardening cement composites (SHCC) provides an opportunity for steel-free construction. This paper provides a comprehensive review of the properties of SHCC and the corresponding practical exploration without reinforcement. The authors herein begin with a discussion on the superior properties of SHCC and its structural applications on the RC structure. Following this, the application of SHCC to retrofit URM is reviewed. Finally, we presents the advances of SHCC used in 3D concrete printing (3DCP) technology, and discuss the feasibility of SHCC structures without reinforcements in the future. When these explorations are coupled with appropriate theoretical models, true values for auto-construction without steel reinforcement will emerge.

A Study on the Use of Foundry Sand as a Sustainable Construction Material: A Review

Abstract: Foundry sand is used as a substitute of a fine aggregate for green concrete for the sustainable development of construction industry. Foundry sand may also used to develop a design mix for the concrete, and to check the properties of green cement used in concrete, the following properties of concrete were determine, Compressive strength of the concrete, Split tensile strength of the concrete and Flexural Strength of the concrete

Research on Whole Process Engineering Consulting Mode of Green Prefabricated Building based on BIM

Since 2013, China 's economy has entered a new normal development stage of growth shift. With the acceleration of the new urbanization process, high-quality development requires real estate transformation, upgrading and innovation. The real estate industry is an important force to promote the rapid development of China 's economy, which has changed the situation of urban housing shortage and made historic achievements. However, with the rapid development, the disadvantages of the traditional construction industry are also constantly highlighted, such as extensive development, not focusing on green development. Vigorously promoting the industrialization, informatization and greening of construction industry is an important way to realize the modernization of China 's construction industry. Therefore, based on the current BIM technology, this paper aims to build an intelligent construction system for prefabricated buildings, combined with the whole process of engineering consulting, in order to play a positive role in promoting the transformation and development of China 's construction industry.

Regional green total factor performance analysis of China's construction industry based on a unified framework combining static and dynamic indexes.

It has an important meaning to improve green total factor performance in the construction industry for China's green and high-quality development. In addition to the traditional desirable economic output and undesirable CO2 emission output, the indicators representing social welfare of China's construction industry were incorporated into the total factor framework. On this basis, a global non-radial DEA approach was employed to explore the sources and the key factors leading to changes in regional green total factor performance of China's construction industry from both static and dynamic perspectives. The results were concluded as follows: (1) The lower energy efficiency and CO2 emission efficiency were the main reasons for low level of green total factor efficiency. During the sample period, energy efficiency increased rapidly while capital efficiency remained almost unchanged. (2) The green total factor productivity demonstrated an increasing trend, which was driven by technological progress rather than technical efficiency. An in-depth decomposition revealed that the deterioration of technical efficiency was mainly caused by the negative effect of CO2 emissions. (3) Regional green total factor performance of China's construction industry demonstrated obvious spatial heterogeneity. Each province should comprehensively consider its own characteristics of green development in the construction industry to formulate the corresponding optimization strategy. These findings can help decision makers design specific policies on regional-oriented green development of China's construction industry.

Artificial Neural Networks for Sustainable Development of the Construction Industry

Artificial Neural Networks (ANNs), the most popular and widely used Artificial Intelligence (AI) technology due to their proven accuracy and efficiency in control, estimation, optimization, decision making, forecasting, and many other applications, can be employed to achieve faster sustainable development of construction industry. The study presents state-of-the-art applications of ANNs to promote sustainability in the construction industry under three aspects of sustainable development, namely, environmental, economic, and social. The environmental aspect surveys ANNs’ applications in sustainable construction materials, energy management, material testing and control, infrastructure analysis and design, sustainable construction management, infrastructure functional performance, and sustainable maintenance management. The economic aspect covers financial management and construction productivity through ANN applications. The social aspect reviews society and human values and health and safety issues in the construction industry. The study demonstrates the wide range of interdisciplinary applications of ANN methods to support the sustainable development of the construction industry. It can be concluded that a holistic research approach with comprehensive input data from various phases of construction and segments of the construction industry is needed for the sustainable development of the construction industry. Further research is certainly needed to reduce the dependency of ANN applications on the input dataset. Research is also needed to apply ANNs in construction management, life cycle assessment of construction projects, and social aspects in relation to sustainability concerns of the construction industry.

Assessment of risk factors causing delays in road construction in Egypt

Delays are a common problem in the global construction industry, affecting the development of the road construction industry, particularly in developing countries. Where, the construction industry faces a lot of risk factors that can contribute to project delays, particularly during COVID-19. The road projects risk management framework was used to identify potential risk categories that could impede the success of road construction in Egypt. On the other hand, road construction in Egypt faces numerous challenges with increasing unexpected parameters throughout the project life cycle. In other words, unanticipated risk factors have a significant impact on the success of project execution. As a result, the study’s primary goals are to investigate the majority of the risk factors that cause road construction delays in Egypt. The impact of numerous risk factors has changed the delays in road projects as the COVID-19 pandemic spread across the world. As a result, the study incorporates previously unstudied factors. As well, the research has sought to investigate the new severity of risk factors during coronavirus infection. Moreover, risk breakdown structures have classified the risk factors into several categories. They include consultant risk, design risk, equipment risk, material risk, owner risk, contract risk, contractor risk, labor risk, external risk [coronavirus effects and others] and operational risk. The strategy employed in the paper is to incorporate the DEMATEL technique and risk analysis into the statistical model. Whereas the risk analysis prioritizes risk based on the evaluation of each specific project risk. Additionally, this approach has been able to create connections between risks, which may make it easier to understand the likelihood and severity of project risk than if the risks were just considered isolated events. Furthermore, the pilot survey is divided into two stages, the first of which is based on risk analysis to identify the most significant risks. As a result, the identification of the high-risk for each category has been researched. The second survey was issued to risk management by evaluating the importance of risk factors and creating causal relationships among components using the decision-making trial and evaluation laboratory (DEMATEL) approach. Finally, it is noticed that operational risk and external risk caused by the effects of the coronavirus have the greatest impact on the delay of road projects.

Quantitative study on external benefits of prefabricated buildings: From perspectives of economy, environment, and society

• A three-dimensional evaluation indicator system from environment, economy, and society. • A quantitative model for quantifying the external benefits of prefabricated construction buildings. • A case study for verifying the feasibility and effectiveness of this quantitative model. The traditional construction industry has been considered as an industry in need of urgent improvement for its high natural resources consumption and serious green-house gas emissions. It has been confirmed that prefabricated buildings have significant advantages in energy saving, emission reduction, and other environmental aspects. This kind of lean construction mode will lead the future development trend of the construction industry. More and more external benefits are created for the implementation of prefabricated buildings. However, there is still a lack of quantitative analysis of the external benefits of prefabricated buildings. Therefore, an external benefit evaluation index system was established from the dimensions of economic, environmental, and social. Moreover, a quantitative evaluation model of prefabricated buildings was designed. Finally, the feasibility of the model was verified by an empirical study. Based on the external theory, the external benefits should be shared through the participants of prefabricated buildings such as real estate developers, consumers, and governments. The quantitative results based on the research can provide the foundational data for the proper distribution and allocation of the external benefits for implementing prefabricated buildings, which can contribute to the sustainable development of construction industry and society.

The institutional framework of construction safety management: A case study of Sri Lanka

The Sri Lankan construction sector continued to boom in the last decade reporting a 6.78 per cent growth in GDP in 2019. Nonetheless, construction accident statistics recorded 40 fatal and 59 non-fatal accidents in 2019. There is a serious lack of safety management in construction companies in Sri Lanka. The reason is largely attributable to the lack of an institutional mechanism to ensure accountability, planning, prioritising, reviewing, learning, and training for continuous improvement of safety. Therefore, it is necessary to explore the system of laws, regulations, and procedures, and stakeholders with their roles and norms that shape construction safety. The study explored how national level and industry level institutions are linked to construction safety management systems in Sri Lanka through document review and interviews with personnel from the Department of Labour, Construction Industry Development Authority, construction companies, professional bodies, and academic institutes. The Factories Ordinance, No. 45 of 1942 is the main legislation applied to construction safety enacted in the colonial period, thus, no improvements are made to industry -specific requirements and technological advancements. Neither, the Construction Industry Development Authority has any standards, guidelines, or codes of practices to conform to safety. Major construction companies align with international standards (ISO 9000, 14000; OHSAS 18000) to win major construction projects. It indirectly affects maintaining a safe work environment. Therefore, Sri Lanka needs to focus on an industry-level institutional mechanism to improve the safety management system. Further, support from educational and training institutes, trade associations, and professional bodies is necessary to push forward the importance of safety.

Dynamic Characteristic and Decoupling Relationship of Energy Consumption on China’s Construction Industry

(1) Background: The decoupling of energy consumption from economic growth in the construction industry is crucial to the sustainable development of the global construction industry. The existing studies focus on the advancements in energy efficiency by designers for building monoliths or construction techniques, involving no exploration of energy efficiency management from a regional perspective, which is unfavorable for the formulation of energy efficiency policies and systematic control of the construction industry by local governments. (2) Methods: From the perspective of regional management, this paper constructs an integrated analysis and application framework of “spatio-temporal characteristics + matching evaluation + policy design” based on the decoupling model and GIS tools. It studies the spatio-temporal characteristics of energy consumption in the construction industry in 30 provinces of China from 2010 to 2019, and its decoupling relationship with the economic development of the construction industry, and proposes an optimal zoning and recommendations for energy consumption in the construction industry, providing a reference for energy conservation management in the construction industry in China. (3) Results: First, the change of energy consumption amount (ECA) in the construction industry in the provinces was dominated by ascent, while the energy consumption intensity (ECI) predominantly decreased, and most provinces are still in a period of growth or plateau in energy consumption. Second, ECA and ECI had prominent spatial heterogeneity and aggregation. High-energy-consuming regions are concentrated along the coast and along the Yangtze River, while low-energy-consuming regions are mainly clustered in remote areas, such as the northeast, northwest, and southwest of China. Energy consumption shows a clear north-south difference in intensity, with high-intensity regions clustered in the north compared to low-intensity regions in the south. Third, most of the provinces were in strong negative decoupling, expansive coupling, and weak decoupling, and better decoupling regions were mainly gathered in south and central China. Nearly one half of these provinces showed decoupling degradation and only a few achieved evolution, with evolutionary regions clustered mainly in central and southern China. The northeast and northwest were the key problem areas of energy-saving transformation in China’s construction industry. (4) Conclusion: The 30 provinces were divided into three types: leader, intermediate, and laggard, and the development goals and suggestions on low energy consumption in the construction industry for three zones were put forward, significantly improving the precision of policy design and implementation. The study in this paper expands the research perspective on energy saving management in the construction industry and provides a methodology and basis for developing energy efficiency policies and plans for the construction industry in China and similar developing countries.

Acute Development Trends of Investment-Construction Sphere

The development of various industries during crisis presupposes certain deviations from forecasts made before such situations and it should be taken into account in development strategies of industries. Identifying development trends in the investment-construction sphere during crisis can help correct strategic management of the industry, which forms an acute scientific and practical task. The goal of the research is to identify trends in development of investment and construction sphere to estimate optimum nature of its strategic management. The authors used systematization, classification and statistic analysis as methods of the research. They underline the fact that lately project bank financing has been developing vigorously, which improved safety level of holders’ investment and raised the demand on new homes market. According to the authors the Strategy of innovative development of construction industry in the Russian Federation up to 2030 makes up a fundamental document formulating the vector of its development for decades ahead. The authors came to the conclusion that today investment-construction sphere of the Russian Federation is fast developing industry and it has already restored the growth in indicators after the crisis caused by the corona virus pandemic. The outcome of the research is identified trends in the development of the investment-construction sphere in Russia during crisis and after it.