基于改进CRITIC法与云模型的装配式混凝土建筑安全风险评价

Safety Risk Assessment of Prefabricated Concrete Buildings Based on Improved CRITIC Method and Cloud Model

在我国政策的大力支持下,装配式建筑不断向前发展,但装配式建筑在建造的各个阶段存在着大量风险因素。为了预防和控制安全事故的发生,根据装配式建筑建造全过程中存在的风险因素,建立安全风险评价指标体系。在应用改进CRITIC法计算指标权重基础上,运用云模型理论对装配式建筑安全风险进行评价,从而实现定性概念与定量数值间的互相转化,消除风险指标的不确定性。最后将改进CRITIC法与云模型理论应用到实际案例中,结果表明该项目的评价等级为较低风险,作业人员的安全意识和施工人员的作业环境因素需进行重点把控。通过案例分析验证了该模型的适用性和合理性,可为装配式建筑建造全过程安全风险评价提供参考。

With the strong support of China’s policies,prefabricated buildings are developing continuously,but there are still a lot of risk factors in each stage of the construction of prefabricated buildings.In order to prevent and control the occurrence of safety accidents,according to the risk factors existing in the whole process of assembly building construction,the safety risk evaluation index system is established.On the basis of using the improved CRITIC method to calculate the index weight,the cloud model theory is used to evaluate the safety risk of prefabricated buildings,realizing the mutual transformation between qualitative concept and quantitative value,and eliminating the uncertainty of the risk index.Finally,the improved CRITIC method and cloud model theory are applied to a practical case,and the results show that the evaluation level of the project is low risk,and the safety awareness of the operator and the operating environment factors of the operator need to be focused on control.The applicability and rationality of the model are verified by case analysis,which also provides a reference for other scholars to carry out safety risk assessment in the whole process of assembly building construction.