附着式升降脚手架倾覆和坠落事故风险评价模型

结合脚手架安全技术规范,建立了附着式升降脚手架倾覆和坠落事故风险评价指标体系,确定了17项风险因素;构建了基于集对分析法的风险评价模型,采用层次分析法确定了各因素权重;根据集对分析法原理,将各因素风险等级分为三个级别,根据专家打分结合各风险因素权重系数确定同一度、差异度、对立度;采用特殊取值法、集对势分析法确定附着式升降脚手架倾覆和坠落事故风险等级;将该方法应用于某工程实例,评定结果为该工程附着式升降脚手架倾覆和坠落事故风险等级处于可控状态,与现场工程实际相符。

Risk assessment model for overhead and fall accidents of attachment lifting scaffold

Based on the scaffolding safety technical standard, risk evaluation index system of overturning and falling accidents of scaffolding was established, 17 risk factors were determined, and a risk evaluation model based on set pair analysis method was established. weight and degree of risk. According to the principle of the Set Pair Analysis, the risk grade of each factor is divided into three levels. According to the expert''s score and the weight coefficient of each risk factor, the same degree, difference degree and contrast degree are determined. Using special value method, this method is applied to the project example, and the result is that the risk level of overturned and falling accident of attached scaffolding is in controllable condition, which is in accordance with the engineering.