However, the preliminary design workflow based entirely on BIM is still a minority in the AEC industry. Ng, Graser, and Hall conducted a multi-case analysis of BIM design for different structures and found that BIM is mainly adopted for public infrastructure and commercial buildings. Compared with the existing conventional methods, BIM covers the whole life cycle to complete different tasks, such as design, implementation, maintenance, and demolition. Due to the increasing complexity and scale of construction implementation, a single design method or concept cannot provide holistic support. BIM was proposed in 2002 by Jerry Laiserin for constructing digital virtual models to integrate and share data throughout the life cycle as an essential basis for decision making. The highly project-oriented construction industry also involves multiple stakeholders in the preliminary design, and inappropriate communication causes conflicts to reduce efficiency. During the early design stage, the lack of information and instability often leads to bias in the designers’ decision making. The preliminary solution specifies the performance parameters such as building shape, structural system, orientation, and spatial layout. Furthermore, e-tendering is gradually replacing traditional bidding approaches with a simplified digital system to increase the efficiency of project bidding implementation to adapt to market demands. The preliminary design is a precursor to the project’s formal development, laying the foundation for the subsequent tender. This research indicates that the BIM-assisted workflow can significantly reduce operation time to enhance preliminary design efficiency and deserves to be strongly promoted in the Chinese Architecture, Engineering, and Construction (AEC) industry. The findings show that the BIM-assisted workflow consumes less time than the traditional workflow.
This study creates traditional and BIM-assisted workflows for comparative analysis to capture duration data with a questionnaire and validate by practical simulation. To address this issue, this research aims to construct a BIM-assisted workflow to enhance the preliminary design efficiency of architecture. However, the traditional preliminary design approach still occupies the mainstream market without forming a systematic BIM workflow, which causes inefficiency.
Building Information Modeling (BIM) is widely used as information technology in the construction industry to promote the implementation and management of projects. To stabilize the level of urbanization, it is urgent to optimize the whole life-cycle efficiency of construction and the preliminary design as the first step is even more significant. China’s urban housing demand has directly influenced urbanization development.
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