Engineering Construction Standardization Research Articles

Establishment of Technical Standard Database for Surface Engineering Construction of Oil and Gas Field

In recent years, oil and gas field surface engineering construction projects tend to be large in scale, large in quantity, and short in cycle. The task of surface construction management has increased significantly. In the process of project construction, corresponding standards and specifications are required to provide sufficient technical guidance and support for design, construction, and management personnel to ensure project management and control towards compliance, safety, and quality. However, the oil and gas field engineering standards are numerous and specialized, involving different levels of national standards, enterprise standards, and industry standards, which leads to the inefficiency of the actual use of standards and specifications. To solve them, this paper uses knowledge graph technology, OCR recognition, and natural language processing technology to conduct systematic research on the knowledge classification mechanism, data extraction, database construction mechanism, data structuring, and intelligent retrieval matching of oil-gas field surface engineering construction standards. In this study, the structured identification, storage, and information warehousing of standards are realized, and a highly sharable library of standards and specifications is formed, which realizes the intelligent retrieval and pushing of technical standards for surface engineering construction. This paper creates conditions for the realization of intelligent push and benchmarking management of standards and specifications, providing support for digital transformation and intelligent development of oil–gas fields.

Study and Application of Steel and Composite Walls with Corrugated Steel Plates in China

Steel and composite walls with corrugated steel plates have found their wide application in China due to their excellent structural performance. Extensive research has been conducted over the past few decades to investigate their behavior and load-bearing capacity. This paper summarized numerous experimental and numerical studies on the corrugated steel plate shear walls (CSPSWs), double corrugated steel plate shear walls (DCSPSWs), and concrete-infilled double steel corrugated-plate walls (CDSCWs). First, the load-bearing mechanism and design methods of CSPSWs and DCSPSWs under monotonic and horizontal cyclic loads were elucidated. Subsequently, this paper elaborates the load-bearing capacity and corresponding design methods including the sectional strength capacity, the overall stability, and the wall panel stability of CDSCWs under axial compression, compressive-bending combination, and compressive-bending-shear combination. The proposed design methods of CSPSWs, DCSPSWs, and CDSCWs have successfully implemented in practical high-rise building structures and some of them have been adopted by the Chinese engineering construction standards T/CECS 290 and T/CECS 624.

Internationalisation of Chinese green buildings: Review and prospect

<p indent="0mm">The internationalisation of Chinese green buildings is still in its early stages, with a scarcity of relevant research, academic outcomes and engineering practices. This paper aims to review and summarise the situation in China’s green building sector, propose the topic of “internationalisation of Chinese green buildings”, investigate its definition, sort out its causes, analyse the significance and inevitability, and provide theoretical foundations and recommendations for future development. Following a review, the exploration of the internationalisation of China’s green buildings has yielded certain results, and the conditions are favourable. There have been four overseas projects for certification and implementation of Chinese green building standards. China’s Green Building standards are world-leading. Research institutions collaborate extensively with foreign countries and export Chinese solutions. The domestic business environment is being optimised for green buildings, resulting in a booming local market. Moreover, the internationalisation work of China’s construction industry in the 13th Five-Year Summary concludes that international science and technology cooperation has been steadily promoted, the ‘Belt and Road’ science and technology innovation cooperation has been effective, and the internationalisation of China’s engineering construction standards has been promoted. The maturity of the conditions for China’s green building industry to expand internationally includes the perfection of the policy environment, the advantages of industrial scale, and the completion of domestic goals. It also includes the industry’s predicament and the inevitability of internationalisation. The first reason is that domestic opportunities have diminished, and challenges have increased. The second reason is a decrease in domestic real estate market demand. The third reason is the depletion of the supply-side technology and innovation model. The world’s green building market is large in scale and high in growth rate. China’s engineering enterprises can take advantage of the massive radiation effect of the “Belt and Road” initiative to enter the market covered, and these regions generally have low urbanisation rates and high construction potential. The global efforts to improve human settlements and mitigate climate change are also favourable factors. After discussion, internationalisation appears to be the most promising opportunity for the future of China’s construction industry, both in high-quality development and business growth. The internationalisation model of the Chinese green building industry is the sum of the globalisation of domestic green building companies and the greening of Chinese construction and engineering companies that are already overseas. It will emerge from a development model with Chinese characteristics via a model that combines local and overseas. The path to the internationalisation of Chinese green buildings may be as follows: Combining domestic and overseas engineering and technical strength, relying on the massive domestic market to form a huge industrial scale and robust productivity, undertaking the “Belt and Road” countries’ urbanisation needs, and then promoting the development of international standards through the “go out and bring in” formation of multilateralism transnational cooperation, and ultimately driving the entire industry chain.

Development of models for facing tensile forces of soil nail walls using statistical approaches

ABSTRACT The facing is a key component for the design of soil nail walls. However, current design specifications of soil nail walls in China do not specify methods for estimation of facing tensile forces, which has posed challenges for engineers to produce consistent, safe, and cost-effective facing designs. This study first constructs the facing tensile force as the product of the maximum nail load and a facing factor. Then a database containing 91 measured facing tensile force data collected from the literature is developed and used to calibrate the facing factor matching six maximum nail load models that are commonly adopted in China, namely, the simplified incremental calculation models based on the Rankine and Coulomb earth pressure theories, the China Academy of Building Research model, and the China Association for Engineering Construction Standardization model. Based on the developed database, the accuracies of the six proposed models for facing tensile forces are demonstrated to be unbiased on average and the dispersions in the prediction accuracy are ranked from low to medium. Furthermore, the influences of three wall working conditions on prediction accuracy of the developed models are investigated and shown to be practically insignificant. Last, the model biases are characterised as lognormal random variables.

Research on the Influence Mechanism of Construction Standardization on Project Economic Benefit (Note)

In today’s world, there is a significant trend of economic integration, information technology is constantly improving, and standardization plays a key role in the standardization of the industry, the acceleration of industrial development and the in-depth development of international trade. Many countries raise standardization to the strategic level. Engineering construction standardization is an important part of standardization, which has an important impact on the economic benefits of engineering projects. This paper will stand at the top of the project, from the perspective of project management analysis of the impact of engineering construction standardization on project economic benefits.

The current situation and trends of healthy building development in China

The development of healthy buildings is an important way to implement the strategy of “Healthy China” in the building industry. It is of great significance to promote the development of healthy buildings. In 2016, China’s first healthy building technical standard Assessment Standard for Healthy Building was released and implemented in January 2017. Since then, the healthy building has achieved rapid development in China, which is embodied in the following aspects. (1) Set technical standards to lead the development of healthy buildings. To realize the fine construction guidelines, in addition to Assessment Standard for Healthy Building , technical standards for healthy buildings have been compiled for major building types, such as healthy hotels and healthy hospitals. In addition, on the basis of single building, assessment standards such as healthy community and healthy town have considered the healthy influencing factors in different scopes and put forward the corresponding technical requirements. (2) Conduct the scientific research to provide theoretical and technical supports for the development of healthy buildings. The researchers carried out special scientific research from the aspects of building ventilation, indoor air quality, emission of pollutants from building materials, healthy lighting and light environment improvement, sports health and so on. (3) Various organizations provide services for the healthy building industry. First, the healthy living professional group of China association for engineering construction standardization (CECS) was established to promote the standardization of healthy buildings. Second, China Healthy Building Alliance plays the role of link, carrier and platform to establish a diversified channel for sharing healthy building resources. Third, the relevant research institutions were established to conduct special research on the theory and technology of healthy buildings. (4) Carry out project evaluation to drive the implementation of healthy building projects. Chinese Society for Urban Studies (CSUS) has carried out the evaluation and certification of healthy building. By September 2019, a total of 50 projects had obtained the certification of healthy building identification, covering 14 provinces and cities with a total building area of nearly 5 million m2. (5) Promote healthy building technology progress through academic exchange and technical cooperation. Taking 2019 (the first) Healthy Building Conference as an example, academicians, experts, executives and other representatives from different fields exchanged views on healthy environment research, standard certification, scheme supply, case demonstration and industrial value, which gave new momentum to the development of healthy buildings. However, the healthy buildings are still in the initial stage in China. In the future, more comprehensive exploration and innovation should be carried out in the following aspects. (1) The identification of factors affecting physical health, mental health and social health related to healthy buildings and the mechanisms of healthy impact need further exploration. (2) It is necessary to promote the interdisciplinary development of healthy buildings, realize the interdisciplinarity and integration, and solve the scientific problem as a whole. (3) In the design stage, comprehensive pre-evaluation is carried out on the factors affecting human health, and the health is integrated into the design of buildings and communities, and healthy design technology is studied and developed. (4) The research on technical standard system of healthy building should be carried out to establish a standard system covering different types of buildings in different stages of the whole life cycle. (5) It is urgent to strengthen the research and development of the related theories, standards, technologies and supporting products of the existing buildings and communities.

Strategy research of internationalization of engineering construction standards for the Belt and Road Initiative

To establish a comprehensive, multi-layer and multi-disciplinary network is the major aim of the “Belt and Road Initiative (BRI)”. Infrastructure connectivity is the main global trend and the basis of connection for trade and people communications, and it becomes the high priority of development of the BRI. Standards are the basic rules for connectivity, and engineering construction standards are also seen as the technical references for economic activities and general language worldwide, which play the important roles during development of the BRI. In order to explore the development strategy for internationalization of engineering construction standards, this paper firstly analyze the development status and demand of standardization of engineering construction of the countries and regions encompassed by the infrastructure corridors based on the investigations, and then, an in-depth analysis on internationalization of engineering construction standards in China is carried out. Finally, multi-level suggestions on internationalization of engineering construction standards promotion have been presented.

Summary of the 2 nd China Power Industry Data Center Summit Forum

[Introduction] With the development of cloud computing, big data, artificial intelligence, 5G, and ubiquitous Internet of Things, the data center for the power industry is to improve the planning and leading of the data center of the power industry and the full life cycle digital service capability of the system integration. Scholars and builders provide an academic exchange platform. The 2nd China Power Industry Data Center Summit Forum was held in Guangzhou on May 9, 2019. [Method] The conference was co-sponsored by the Data Center Working Group of the Information Engineering Professional Committee of the China Engineering Construction Standardization Association and the China Energy Construction Group Guangdong Electric Power Design and Research Institute Co., Ltd., and hosted by the China Institute of Intelligent Information. [Result] This forum will focus on the construction of China′s power industry data center, technology leapfrog development, industry innovation and integration; in the environment of the fourth industrial revolution led by digital, network and intelligent, co-operate with electricity Cross-border development and technology integration with data centers. [Conclusion] The conference is of great significance to promote the development of data centers in China′s power industry.

Statistical evaluation and calibration of two methods for predicting nail loads of soil nail walls in China

The design of soil nail walls in China is dictated by two national technical specifications, namely, Technical Specification for Retaining and Protection of Building Foundation Excavations by China Academy of Building Research (CABR) and Specifications for Soil Nailing in Foundation Excavations by China Association for Engineering Construction Standardization (CECS). Each specification proposes a method for computation of maximum nail loads while the prediction accuracy of the method is still not yet fully assessed. To fill the gap, this study evaluates the accuracies of the two methods using 144 measured nail loads collected from fully instrumented soil nail walls in China. The influences of three wall working conditions on the prediction accuracy of the methods are also examined. The results show that the two default methods overestimate the maximum nail loads by about 40% on-average and the spread in prediction generally ranges from 70% to 100%. However, the prediction accuracy is not significantly influenced by wall working conditions. Simple calibrations with two or three empirical constants are introduced to the two methods to achieve great improvements in prediction accuracy. The calibrated CABR and CECS methods are demonstrated to be unbiased on average and the prediction dispersions are reduced to about 50%.

Relationships between Engineering Construction Standards and Economic Growth in the Construction Industry: The Case of China’s Construction Industry

Although standards have a significant effect on economic growth in the construction industry, the effect of engineering construction standards on construction industry economics remains a relatively unexplored subject. In theory, standards as a technology indicator have an impact on economic growth. Therefore, we investigate the relationships between engineering construction standards and economic growth in the construction industry. A Cobb-Douglas production function and a VAR model are established to explore relationships between engineering construction standards and economic growth in the construction industry. Our results suggest that co-integration relationships are evidenced between engineering construction standards and economic growth in the construction industry, and engineering construction standards have a positive effect on economic growth in the construction industry.

Research on the adoption barriers of the engineering construction standards in China

Purpose The engineering construction standards in China play an important role in protecting the safety of the construction projects. They are the basic principles that standardize the construction activities and guarantee the quality of projects. However, there are many barriers that affect the adoption of the engineering construction standards. Therefore, the purpose of this paper is to investigate the barriers that challenge the adoption of the engineering construction standards in China. Design/methodology/approach The research reveals the barriers that affect the implementation of the engineering construction standards in China through a literature review. Then this study uses factor analysis to analyze 12 indices which we get from a questionnaire to build explanations from the results. Findings According to this paper, four main brands of uncorrelated variables are derived which are the main challenges in implementing the engineering construction standards in China: management barriers, policy barriers, knowledge barriers and market barriers. This paper gives a clear classification of the barriers that the enterprises face while adopting the engineering construction standards in China. Originality/value This paper makes a contribution to the understanding of the barriers that affect the adoption of the engineering construction standards in China.

On the Internal Relations between Engineering Construction Standardization and Establishing New Industry-Agriculture and Urban-Rural Relationships

The thesis states the important role of engineering construction standardization in establishing the new industry-agriculture and urban-rural relationships. On that basis, it expounds the internal relationships between engineering construction standardization and establishing new industry-agriculture as well as urban-rural relationships. It stresses the necessity of formulating a relevant standard for engineering construction in both aspects.

Large Ranging of Ultrasonic Testing Inspection Internal Defects of Mass Concrete Structure

The ranging greater than 3m is not accorded with china engineering construction standardization association standard TECHNOLOGICAL SPECIFICATION FOR INSPECTION OF CONCRETE DEFECTS BY ULTRASONIC METHOD[CECS 21:200 (Transducer spacing is 2~3m). This paper studied large ranging of ultrasonic test mass concrete structure, and analyzed a project instance that was inspected the internal defects of mass concrete structures with various test methods, compared of those results. As detection is shown, first, with the test distance increased to 5.1m, the velocity of sound shows a linear trend of continuous development trend. Second, responds to improve of concrete strength, the velocity of sound increases, but not shows a linear trend. In addition, with the test distance increasing, concrete strength increases, but the velocity is down. A large ranging of ultrasonic test method was developed based on these observations.