基于DEMATEL-ISM的装配式建筑发展制约因素研究

Research on the Constraints of the Development of Prefabricated Buildings Based on DEMATEL-ISM

目前,我国装配式建筑在预制、运输、安装过程中,受到专业人才缺乏、节点连接技术不成熟、成本偏高等因素的制约,导致我国装配式建筑的发展速度缓慢。运用文献查阅和问卷调查法,从建筑施工企业的角度,识别出制约我国装配式建筑发展的主要因素。应用DEMATEL分析了各制约因素的中心度和原因度,运用ISM构建了制约因素的多级递阶结构模型,将两个模型进行耦合构建组合模型,通过组合模型理清了各制约因素间的逻辑关系和层级关系及相对重要程度。研究发现,制约我国装配式建筑发展的根本原因是缺乏专业人才。根据原因因素的中心度排序,确定出主要制约因素,制定出提升我国施工企业装配式建筑施工水平的应对措施,为推动我国装配式建筑的发展提供一定的建议和指导。

At present,the lack of professional talents,immature node connection technology and high cost in the process of manufacturing,transportation and installation pocess slows the development of prefabricated buildings in China.Using literature review and questionnaire survey methods,the main factors restricting the development of prefabricated buildings in China were identified from the perspective of construction companies.DEMATEL was used to analyze the centrality and cause of each constraint,ISM was used to build a multi-level hierarchical structure model of the constraint.These two models were coupled to build a composite model.Through the combination of models,the logical and hierarchical relations and relative importance of each constraint were clarified.The research found that the fundamental reason restricting the development of prefabricated buildings in China was the lack of professional talents.According to the centrality ranking of the cause factors,the main constraints were identified,and the measures to improve the construction level of the prefabricated buildings of construction enterprises were proposed to provide certain suggestions and guidance for the development of prefabricated buildings in China.