These incidents illustrate the danger of safety accidents caused by all-steel-type attached lifting scaffolds and the need for effective control measures to ensure the safe deployment of all-steel climbing scaffolds by China’s construction industry. On March 21, 2019, an all-steel-type attached lifting scaffold dropped at a construction site in Yangzhou, killing six and injuring 11 people. In August 2016, a typhoon caused the partial falling of an all-steel-type attached lifting scaffold at a construction site in Shenzhen with, fortunately, no related injuries. On September 10, 2011, a high-rise attachment lifting scaffolding accident at a construction site in Xi’an killed ten and seriously injured two people. However, the use of new types of equipment has resulted in a technological revolution and new requirements for safety management workers. These scaffoldings are superior to traditional scaffolding in terms of durability, reduced energy use and environmental protection, and rapid turnover, and they have been widely used in engineering projects in recent years.
The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist.Īll-steel-type attached lifting scaffoldings are one of the “Top Ten New Construction Technologies” promoted by the Ministry of Housing and Urban-Rural Development of the People’s Republic of China in recent years. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All relevant data, calculations and results are within the manuscript.įunding: This work was supported by the National Natural Science Foundation of China grants 51908452, 51808424, 51677879, 51478384, and 51178386 to HL. Received: ApAccepted: AugPublished: August 27, 2020Ĭopyright: © 2020 Liu et al. PLoS ONE 15(8):Įditor: He Debiao, Wuhan University, CHINA Using the established assessment model, four projects were subjected to a safety evaluation, with the results validating the model by revealing that its output was consistent with the actual security situation.Ĭitation: Liu Y, Li Q, Li W, Li H, Pei X (2020) Safety assessment of all-steel-type attached lifting scaffold based on grey Euclidean theory. A safety assessment model for an all-steel-type attached lifting scaffolding was constructed using grey relative Euclidean weighted correlation theory to enable the calculation of a grey-to-Euclidean weighted correlation degree that directly correlates with the degree of security. A combined multi-agent-based modeling (MABM) method and structural entropy weight were used to calculate a comprehensive weight for better alignment of the weight calculation results with objective laws. The first-level indicators cover three risk dimensions: unsafe human behavior (personal operations), unsafe conditions (material performance, structural calculation, components and connections), and lack of management (safety management). To do so, a safety evaluation index system covering all steel-type attached lifting scaffolds that comprises five first-level indicators and 17 second-level indicators was established. To reduce the incidence of safety accidents during the construction of all-steel-type attached lifting scaffolds and address the research gaps in related fields, in this study a theoretical model of trajectory crossing accidents was coupled with an analysis of similar safety accidents to determine the causes of accidents in the construction of high-rise buildings using steel-type attached lifting scaffolds.
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