新型建筑工业化视角下集成数字交付理论体系构建

Establishment of an integrated digital delivery (IDD) system under the perspective of new construction industrialization

集成数字交付(IDD)是一种新型项目管理模式,它利用数字化技术整合工作流程并连接项目利益相关者,能够为新型建筑工业化提供管理机制层面的支持。目前,中国IDD模式的实践仍处于起步与探索阶段,存在实施流程不明确、技术体系不清晰和数据利用不高效的问题。针对这些问题,该文结合中国装配式项目的工程管理特征,构建了IDD理论体系,涵盖项目流程框架、关键技术体系和数据应用模型3个部分。利用价值链模型和典型工程案例分别从理论与应用角度分析了IDD模式为建筑业带来的赋能和增值效果,为中国建筑业推广IDD模式提供了科学依据和实践指导。

[Objective] China has launched new construction industrialization as a development strategy for promoting the transformation and improvement of its construction industry.The core development demand is to coordinate the whole industry chain and multiple disciplines and enhance the construction industry's productivity through digital technology.This study explores a project management model called integrated digital delivery(IDD),which supports this strategy.IDD uses digital technology to integrate workflows,connect project stakeholders,and meet the inherent needs of new construction industrialization.The IDD implementation in China is currently still in its early stage,facing various challenges,including unclear implementation process,vague user guidance,and low data utilization efficiency.Hence,a theoretical system that can guide and support IDD's engineering practice is urgently needed.[Methods] This study takes China's prefabricated building projects as the main scenario and conducts research from the three following perspectives to cope with the challenges of IDD implementation:process implementation,technology development,and data application.Furthermore,a series of forward-looking theoretical frameworks are designed.[Results] First,the IDD project process framework is investigated,and standardized process nodes for the four stages of digital design,digital manufacturing,digital construction,and digital operation and maintenance are proposed,tightening the digital connection between each stage,breaking through the data silos of each stage,and providing a standardized reference for the IDD project implementation.Second,this work systematically combs through the key technologies involved in the IDD model and determines its core technology system.The IDD key technology system takes building information modeling(BIM) technology as the digital foundation and includes the technical content of two business categories,namely business execution and intelligent management.Finally,a data application model based on the IDD model,which divides 12 lines at the operational level,is proposed to explain the generation,circulation,and application of engineering data from the three aspects of data resource acquisition,data asset processing,and data-driven decision-making.This study analyzes the empowerment of the IDD model for the construction industry based on research results and applies the value chain theory to explore the value-added effect of the IDD model for the construction industry from a theoretical perspective.Similarly,this work lists the application of the IDD model in three typical projects,showing the process and technological innovation brought by IDD and proving the application value of the IDD model from a practical perspective.[Conclusions] This study innovatively applies the IDD model to the engineering management of prefabricated building projects in China and provides solutions to the problems of complicated deliverables,complex production processes,and the highly difficult full-cycle management in prefabricated building projects.The obtained results can be used in prefabricated building projects with complex production processes and complicated deliverables and be referenced and applied in other projects,as well.Providing a scientific basis and practical guidance for promoting the IDD model in China's construction industry,this work carries theoretical significance and application value for promoting the high-quality development of China's new construction industrialization.