| In recent years,the COVID-19 pandemic has had a huge impact on the supply chains of many industries worldwide,resulting in an imbalance between supply and demand and causing significant losses and even bankruptcy for numerous companies."Black swan" events like the COVID-19 pandemic have brought attention to the resilience of supply chains across industries.Maintaining and improving supply chain resilience can not only ensure the efficient operation of supply chains,but also effectively resist the risks faced during operation,thereby achieving a "win-win" situation for all nodes in the supply chain.As China aims to meet its "dual-carbon" emissions reduction target and the demographic dividend in the construction industry fades,the industry faces the challenge of transformation and upgrading.As an important innovation in construction industrialization,3D printing in construction has gradually gained market favor due to its advantages such as fast construction speed,low-carbon and environmentally friendly construction processes,and less construction personnel required.However,against the backdrop of continuously improving 3D printing technology and expanding market applications,the multi-dimensional application of 3D printing technology in the construction industry has changed the structure of the traditional construction supply chain,creating new problems and risks.The difficulty of supply chain operation and management has also increased.Therefore,clarifying the factors that affect the resilience of the 3D printing construction supply chain,identifying key influencing factors,and proposing supply chain resilience optimization strategies is an important theoretical and practical issue.This article first collects and summarizes relevant literature at home and abroad,reviews research on supply chain resilience,3D printing supply chain,and 3D printing construction supply chain,and summarizes the current applications and status of 3D printing in construction.Then,based on literature and in-depth expert interviews,a 3D printing construction supply chain resilience impact factor index system is constructed,including 7 dimensions and 21 secondary indicators,through grounded theory three-level coding,and a theoretical framework for this study is formed by linking the storylines.Secondly,considering the inherent fuzziness and uncertainty in the evaluation process,an impact factor evaluation model based on the intuitionistic fuzzy analytic hierarchy process is established,which can describe the uncertainty and fuzziness of decision makers’ evaluation of the 3D printing construction supply chain more objectively and comprehensively.Based on the obtained impact factor system,a representative example company Y is selected for empirical analysis,and the established impact factor evaluation model is practically applied to obtain the comprehensive weights of each indicator.The results show that 3D printing construction manufacturers and supervising enterprises are key influencing factors on Y’s 3D printing supply chain resilience,while general contractors and macro factors are considered important influencing factors.Finally,corresponding supply chain resilience optimization measures are proposed for these indicators.The research results of this article enrich and improve the theory and methods of evaluating the impact factors of 3D printing construction supply chain resilience,broaden the scope of supply chain resilience research,provide enterprises with a path to improve their supply chain resilience,enhance their ability to solve various problems in actual operation,improve their ability to resist risks,promote the application of this technology in the construction industry,and provide direction for decision makers of 3D printing construction supply chain related enterprises. |
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