Establishment of an integrated digital delivery (IDD) system under the perspective of new construction industrialization
LU Yujie1,2,3, LU Jiahui1, WANG Shuo1, MAO Ye4, ZHANG Qilong4
1. College of Civil Engineering, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Performance Evolution and Control for Engineering Structures of the Ministry of Education, Tongji University, Shanghai 200092, China; 3. Shanghai Research Institute of Intelligent Science and Technology, Tongji University, Shanghai 200092, China; 4. China State Construction Hailong Technology Co., Ltd., Shenzhen 518110, China
Abstract：[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.
卢昱杰, 卢家辉, 王硕, 毛晔, 张绮珑. 新型建筑工业化视角下集成数字交付理论体系构建[J]. 清华大学学报（自然科学版）, 2024, 64(2): 214-223.
LU Yujie, LU Jiahui, WANG Shuo, MAO Ye, ZHANG Qilong. Establishment of an integrated digital delivery (IDD) system under the perspective of new construction industrialization. Journal of Tsinghua University(Science and Technology), 2024, 64(2): 214-223.
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