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

与传统的棍式建筑相比，异地建筑已成为一种经济上可行、环境友好的替代方案。在非现场施工中，建筑构件设计用于制造和组装(DFMA)，在异地制造，然后运往施工现场进行组装。为了实现及时(JIT)异地施工交付过程，需要通过供应链集成设计信息，并在各种数字平台之间进行合理利用。设计信息的整合还要求虚拟设计和施工(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。 新兴的最先进的建模技术为这种自动化和分析能力提供了可能性。在此基础上，对非现场施工环境下的VDC实施进行了深入的研究。为实现这项研究，将开展以下活动：(1)完成对当今非现场建筑行业VDC的全面文献审查；(2)开发框架和数据存储库结构，以适应非现场施工VDC工作流程的要求；(3)使用脚本编程语言纳入生成性设计规则，以实现VDC过程的自动化。多层预制住宅楼将用于方法的实施和验证。

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.