基于组合赋权和云模型的塔吊作业风险评价

Risk Evaluation of Tower Crane Operation Based on Combination Weighting and Cloud Model

文章以塔吊作业风险作为研究对象,提出了组合赋权和云模型相结合的风险评价方法。其操作步骤如下:首先对塔吊作业风险影响因素进行辨识,并按4M1E法建立“人-机-物-法-环”的塔吊作业风险评价指标体系;然后利用层次分析法与熵权法结合的组合赋权法确定各级风险指标的权重;最后构建基于云模型的塔吊作业风险评价模型,并将该模型应用于武汉市某高层建筑工程项目施工现场的塔吊,得到塔吊作业风险等级,发现与实际情况接近,验证了模型的有效性。

The article takes the risk of tower crane operation as the research object and proposes a risk evaluation method combining the combination weighting and cloud model.The operation steps are as follows:firstly,the risk factors of tower crane operation are identified,and the risk evaluation index system of"human-machine-material-management-environment"is established according to 4M1E method;then the combination of hierarchical analysis and entropy method is used to determine the weights of risk indexes at all levels;finally,the cloud model-based tower crane operation risk evaluation model is constructed and applied to the construction site of a high-rise construction project in Wuhan.The risk evaluation model of tower crane operation based on cloud model is constructed,and the model is applied to the tower crane at the construction site of a high-rise building project in Wuhan City,and the risk level of tower crane operation is finally obtained,which is found to be close to the actual situation and verifies the validity of the model.