As prefabricated buildings play a significant role in the global fight against the new coronavirus “COVID-19,” they attract more global attention than other types of buildings. Lean construction helps to improve the benefits of enterprises and the working environment of workers. However, prefabricated buildings are encountering various challenges in implementing on-site lean construction. According to a cause-and-effect relationship, it will be more meaningful to explore the critical causes hindering on-site lean construction, namely, the critical barriers. Hence, this paper establishes a research methodology framework based on multimethod collaboration, including the exploratory factor analysis model regarding critical barriers, the exploratory factor evaluation model regarding organizational capabilities, and the important findings and suggestions. Thirty-one critical barriers of on-site lean construction for prefabricated buildings are identified via literature analysis, field survey, and semistructured interview. After pre-exploratory factor analysis, thirty critical barriers are finally retained and prioritized, and six common components are extracted and nominated. A large-scale project using the Engineering, Procurement, and Construction (EPC) mode is selected as a case study to evaluate its construction organizational capability to deal with the six common components. The important findings indicate that the inadequate professional management capability of managers is the most critical barrier, and the construction organization from the project case is fully capable of dealing with the common components during on-site lean construction. Six corresponding substantive suggestions are also proposed according to domain experts, and the most prioritized one of them is that an internal training or external recruitment is suggested to solve the inadequate professional management capability of managers. The internal training should take the form of seminars and training courses that invite senior prefabricated project management experts to participate. The external recruitment needs to focus on the management experience, lean skills, and leadership of managers in prefabricated projects. The established methodology framework proposes a new idea for the barrier analysis and corresponding organizational capability evaluation of on-site lean construction from the perspective of the specific prefabricated construction industry rather than the entire construction industry. Due to the special construction mode of prefabricated buildings, it further expands the current boundary of lean construction methodology. The findings and suggestions will provide a valuable reference and guidance for the prefabricated construction industry to solve the barriers regarding on-site lean construction.

中文翻译：

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预制房屋现场精益施工受阻的原因分析及相应的组织能力评价

预制建筑物在全球抗新型冠状病毒“ COVID-19”的斗争中发挥着重要作用，因此它们比其他类型的建筑物吸引了更多的全球关注。精益建设有助于提高企业收益和工人的工作环境。然而，预制建筑在实施现场精益施工中遇到各种挑战。根据因果关系，探索阻碍现场精益建设的关键原因，即关键障碍，将变得更加有意义。因此，本文建立了基于多方法协作的研究方法框架，包括关于关键障碍的探索性因素分析模型，关于组织能力的探索性因素评估模型，以及重要的发现和建议。通过文献分析，现场调查和半结构化访谈，确定了预制建筑物现场精益施工的31个关键障碍。在进行了探索性因素分析之后，最终保留了30个关键壁垒并确定了优先级，并提取并指定了6个常见组件。选择一个使用工程，采购与建设（EPC）模式的大型项目作为案例研究，以评估其应对六个常见组成部分的建设组织能力。重要发现表明，管理人员专业管理能力不足是最关键的障碍，从项目案例来看，施工组织完全有能力应对现场精益施工中的常见问题。领域专家还提出了六个相应的实质性建议，其中最优先的建议之一是建议内部培训或外部招聘来解决管理人员专业管理能力不足的问题。内部培训应采取研讨会和培训课程的形式，邀请高级预制项目管理专家参加。外部招聘需要关注预制项目的管理经验，精益技能和管理人员的领导能力。既定的方法框架从特定的预制建筑行业而非整个建筑行业的角度提出了一种新的思路，用于现场精益建筑的障碍分析和相应的组织能力评估。由于预制房屋的特殊建造模式，它进一步扩展了精益建造方法的当前边界。这些发现和建议将为预制建筑行业解决现场精益施工的障碍提供有价值的参考和指导。