An Integrated Virtual Design and Construction (VDC) Framework for Off-site Construction

与传统的木棒建筑施工方法相比，非现场施工已经成为一种经济可行且环保的替代方案。在非现场施工中，建筑构件设计用于制造和组装（DfMA），在非现场制造，然后运往施工现场进行组装。为了实现实时（JIT）的非现场施工交付过程，设计信息需要通过供应链进行集成，并在各种数字平台之间进行合理利用。设计信息的集成还要求虚拟设计与施工（VDC）系统具有一定的自动化能力，以实现信息交换，减少人为因素和错误。

Off-site construction has emerged as an economically viable and environmentally-friendly alternative when compared to the traditional stick-built building construction approach. In off-site construction, building components are designed for manufacture and assembly (DfMA), manufactured off-site, then shipped to the construction site for assembly. To achieve a just-in-time (JIT) offsite construction delivery process, design information needs to be integrated through the supply chain with sound utilization among various digital platforms. The integration of design information also requires the virtual design and construction (VDC) systems to have certain automation capacities to enable information exchange and reduce human components and errors. Emerging state-of-art modeling technologies have provided possibilities for such automation as well as analytical capacities. Based on this, a thorough study of VDC implementation in the context of off-site construction environment is proposed. The following activities will be conducted to achieve this study: (1) complete a holistic literature review of VDC in today's offsite construction industry; (2) develop a framework and data repository structure to accommodate the requirements of off-site construction VDC workflow; (3) incorporate generative design rules using scripting programming language to automate the VDC process. A multi-story precast residential building will be used for methodology implementation and validation.