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A Review and Scientometric Analysis of Global Research on Prefabricated Buildings

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A Review and Scientometric Analysis of Global Research on Prefabricated Buildings Hindawi Advances in Civil Engineering Volume 2021, Article ID 8869315, 18 pages https://doi.org/10.1155/2021/8869315 Review Article A Review and Scientometric Analysis of Global Research on Prefabricated Buildings Wenhui Liu ,1 Hong Zhang ,1 Qian Wang ,2 Tianran Hua ,1 and Hong Xue 3 1School of Architecture, Southeast University, Nanjing 210096, China 2Department of Building, School of Design and Environment, National University of Singapore, 4 Architecture Drive, 117566, Singapore 3School of Management, Shandong University, Jinan 150001, China Correspondence should be addressed to Hong Zhang; [email protected] and Qian Wang; [email protected] Received 1 September 2020; Revised 22 January 2021; Accepted 2 February 2021; Published 18 February 2021 Academic Editor: Hui Yao Copyright © 2021 Wenhui Liu et al. +is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Prefabricated building has become one of the most significant research directions in the architecture, engineering, and con- struction (AEC) industry and has attracted a large number of scholars and practitioners in recent years. However, few studies have conducted a systematic review on the development of prefabricated building research around the world. In this study, the scientometric method is used to analyze the literature on prefabricated buildings in the past ten years through analysis of co- authors, co-words, and co-citation. From the Web of Science (WOS) core collection database, a total of 1224 articles were collected for statistics and analysis. +e analysis results indicated that Bruno Dal Lago obtained the maximum number of co-citations, and the most significant country/region and research institution in prefabricated building research were China and Tongji University, respectively. It was also found that engineering, civil engineering, and construction and building technology were the top three subject categories that prefabricated building research belonged to. Among all the keywords of the collected articles, citation bursts were received by “cladding panel,” “precast concrete,” and “project.” Moreover, there were 11 co-citation clusters identified from the articles, and their themes included precast structures, waste management, progressive collapse, delay, precast facades, carbon reduction, laser scanning, and prefabricated residential building. +is paper is expected to provide researchers and practitioners in this field a detailed and in-depth understanding of the trend and status of global research on prefabricated buildings. 1. Introduction materials joined together in a specialized facility to form prefabricated components, and on-site installation is the Increasing carbon emissions by human activities are leading process that installs all the individual components on-site to rising global temperatures, which results in serious global [3]. Compared to traditional ways of construction, pre- environmental problems and needs an urgent social re- fabricated buildings have a series of advantages in the project sponse [1]. All aspects of human activities are gradually life cycle including reduction of required labor [4], savings of leading to an increase in carbon emissions. Among them, the construction time and cost [5], decrease of construction energy use during building operations accounts for a quarter pollution [6], ease to maintain and repair, and better con- of the total CO2 emissions [2]. +e adoption of prefabricated venience to dismantle and rebuild. Due to the aforemen- buildings can effectively reduce the carbon emissions gen- tioned advantages, prefabricated buildings have been widely erated during the entire life cycle of buildings. Prefabricated adopted worldwide. Many countries/regions are promoting buildings are usually constructed in two steps: off-site the development of prefabricated buildings to varying de- prefabrication and on-site installation. Off-site prefabrica- grees according to their current statuses of economic de- tion is the manufacturing process that makes various velopment, resources, and energy. 2 Advances in Civil Engineering +ere have been some research efforts to review liter- automate building construction such as the robotics atures on prefabricated buildings from various perspectives. technology. Some studies focused on the management of prefabricated Despite of the aforementioned literature reviews on buildings. For example, Li et al. [7] reviewed the literature on prefabrications, all of the existing reviews are focused on the management of prefabricated construction (MPC) and only a certain perspective of prefabrications such as supply identified the popular research areas in the field of MPC. chain management, energy performance, or structural de- Wang et al. [8] properly classified existing studies on precast sign and performance. +ere is a lack of review that presents supply chain management to reveal the research gaps and a high-level overview of global research trends on pre- suggest research opportunities in the future. Wuni and Shen fabricated buildings. Despite of some recent review papers [9] found the complex nature of the barriers which hindered [21, 22], these papers were mainly focused on articles before the wider diffusion of modular integrated construction 2017. However, this field is developing rapidly, with more (MIC) in the construction industry. Some researchers than 200 articles per year. +ere is a need to carry out a latest studied the adoption of prefabricated buildings in specific review and analysis of the related literature to present the countries/regions. For example, Navaratnam et al. [10] came most recent research trends. +erefore, this study attempted to the conclusion that the systems and constructions of to carry out a scientometric literature review on pre- prefabricated buildings held high potentials to sustainably fabricated buildings in the recent ten years. Scientometric is enhance the efficiency and performance of the Australian a type of quantitative study to help researchers to better construction industry. Jaillon and Poon [11] discussed the understand the connectivity of a certain research field [23]. evolution of precast technology in high-rise residential +e scientometric method covers comprehensive analyses of developments in Hong Kong and verified that the ad- all aspects of literature such as subjects, keywords, journals, vancement of prefabrication techniques could significantly authors, institutes, and citations [24]. +is article will use the contribute to economic and environmental benefits. Some scientometric research method to visually analyze and other researchers studied the adoption of prefabrication discuss the recent literature on prefabricated buildings to techniques for buildings of specific functions or structural present the recent research trend and status. +e rest of this systems. For example, Newton et al. [12] studied the use of paper is organized as follows. Section 2 presents the research prefabrication for Australian school buildings and pre- method of this study. +en, the scientometric analysis results fabricated learning environments. Bukauskas et al. [13] are presented and discussed in Section 3, and Section 4 carried out a review on the prefabrication developments in discusses and recommends future research directions. whole timber construction and recommended that the focus Lastly, Section 5 summarizes and concludes this study. of future research would be scaling timber structural ap- plications and developing new digital technologies for 2. Method prefabrication. +ere are also some researchers focusing on the life cycle +is study utilized the science mapping method to conduct a performance and seismic performance of prefabricated comprehensive analysis of global research on prefabricated buildings. For example, Kamali and Hewage [14] investi- buildings. Science mapping is a process of producing do- gated the environmental performance of modular facilities main analysis and visualization [25] and consists of bib- throughout the life cycle and discussed on the benefits and liometric analysis and scientometric analysis. Based on challenges of the modular construction method. Boafo et al. bibliometric tools and data, science mapping offers a broader [15] clearly characterized the levels of prefabrication and approach to analyzing the literature and identifying po- investigated the performance of modular prefabrication with tentially insightful patterns and trends of the domain [26]. a dynamic case study-based review. Kurama et al. [16] +is study adopted a three-step literature review approach reviewed the advances of prefabrication including practical including (1) bibliographic retrieval, (2) scientometric applications and code developments and concluded that it analysis, and (3) discussion as follows. was feasible with the widespread use of precast concrete in seismic regions. Jin et al.[17] critically reviewed the literature on off-site construction and its environmental performance 2.1. Bibliographic Retrieval. +e first step was the biblio- and concluded that the two most significant challenges for graphic search in the Web of Science (WOS) core collection the evaluation of the environmental performance of off-site database, which contains the most valuable and influential built facilities were the system boundary and data accuracy. journals all over the world [27]. Relevant literature on Xu et al. [18]
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