基于云模型-熵权法的装配式建筑施工安全风险评估

Risk assessment for construction safety of prefabricated building based on cloud model and entropy weight method

为降低装配式建筑施工事故发生率,对装配式建筑施工安全风险评估指标及模型进行研究.通过装配式建筑施工特点、事故诱因、相关规范及论文研究,构建了基于云模型—熵权法的装配式建筑施工安全风险评估模型.利用云模型,有效地考虑了风险评估数据的模糊性与随机性,再利用熵权法,给出评价指标的权重系数,有效避免了专家赋权的主观性.将该模型应用于工程实例中,取得了良好的效果.研究结果表明:该模型风险等级评估结果与现场风险等级一致,证明该模型能够客观、准确地评估装配式建筑施工的风险等级.

In order to reduce the incidence of prefabricated construction accidents,the safety risk assessment index and model of prefabricated construction were studied.The safety risk assessment model of prefabricated building construction based on cloud model and entropy weight method was constructed by studying the characteristics of prefabricated building construction,accident inducement,relevant norms,and papers.The cloud model was used to consider the fuzziness and randomness of risk assessment data effectively,and the entropy weight method was used to give the weight coefficient of the evaluation index,which effectively avoids the subjectivity of expert weighting.The model was applied to engineering examples,and good results are achieved.The results show that the risk level evaluation results of the model are consistent with the field risk level,indicating that the model can objectively and accurately evaluate the risk level of prefabricated construction.