装配式建筑项目安全绩效云模型评价方法

Safety performance assessment of fabricated building project based on cloud model

为准确评价装配式建筑项目安全绩效等级,考虑到评价的模糊性和随机性,在专家打分的基础上,提出一种装配式建筑项目安全绩效云模型评价方法。首先,根据装配式建筑作业空间并行多维的特点,按人-机-料-法-环(4M1E)5要素确定评价指标体系,采用层次分析法(AHP)和熵权法计算指标组合权重;其次,确定安全绩效考核等级标准云与项目综合评价云,通过计算两者的云相似度确定项目安全绩效等级;最后,以某市试点项目为例,按照该方法确定项目安全绩效等级。结果表明:该试点项目安全绩效等级为优,符合实际情况;与其他常规综合评价方法相比,结果更加客观、准确。

To get a scientific and objective assessment of the grade of the safety performance of a given fabricated building project, after considering the fuzziness and randomness of the project safety performance assessment,a method based on cloud model was built on the basis of the expert scoring method. A safety performance assessment index system was established according to 4M1E. The AHP and the entropy weights method were used to calculate combining weights. Method were worked out for calculating standard cloud and comprehensive evaluation cloud. The grade of project safety performance is determined by cloud similarity. The method was applied to a certain pilot project in a certain city in China as an example. The calculation results are closer to the reality and show that the project safety performance grade is excellent,which conforms with the results obtained by conventional methods.