AHP-改进物元法在整体钢平台顶升模架体系安全风险评估中的应用

Application of AHP improved matter⁃element method in safety risk assessment of integral steel platform jacking formwork system

针对整体钢平台顶升模架体系施工安全性的灰色特征,经实地调研及专家评审,建立了整体钢平台顶升模架体系的安全风险评估模型。首先,考虑人员、设备、环境、管理及技术5个方面,选取19个指标构建安全风险评估指标体系;其次,采用层次分析法计算各指标权重,基于改进物元法确定各指标的风险等级,然后将两者向量相乘,以最大隶属度原则确定整体钢平台顶升模架体系的安全风险等级;最后,将所建立的基于层次分析法(Analytic Hierarchy Process, AHP)-改进物元法的安全风险评估模型应用到某超高层工程实例中,并将评估结果与实际施工情况对比分析。研究表明,该评估模型的计算结果合理且准确可靠,可为超高层整体钢平台顶升模架体系的安全管理提供参考。

In China,super high⁃rise building construction technology has advanced significantly in recent years.Integral steel platform jacking formwork systems represent a high level in this field of construction technology and are frequently used in well⁃known projects.The AHP⁃improved matter element method was introduced because of the fuzziness and randomness of its construction.After conducting a field investigation on the construction site and having the project reviewed by an expert,a safety risk assessment model for the integral steel platform jacking formwork system was developed following the Code for Project Management of Construction Engineering(GB/T 50326—2017).First,the safety risk assessment indicator system's 19 indications are chosen after taking into account five factors,including personnel,equipment,environment,management,and technology;The weight of each index is calculated successively by using the analytic hierarchy process,including the weight of the index layer on the criterion layer and the weight of the criterion layer on the target layer.This safety risk assessment model of the integral steel platform jacking formwork system is based on the Analytic Hierarchy Process(AHP)⁃improved matter element method.The two vectors are multiplied to produce the overall weight of the index layer over the target layer;Create an assignment standard for each evaluation index,and then use the Delphi method to get the scoring tables for each evaluation index based on this standard.The safety risk level of the integral steel platform jacking formwork system is established following the maximization of membership.The gray correlation degree can be used to replace the European⁃style paste progress in calculating the gray correlation degree of each index for different evaluation grades.Finally,a super high⁃rise project is subjected to the safety risk assessment model based on the AHP⁃improved matter element method and the model's assessment outcomes are contrasted with the actual building condition.The findings demonstrate that the calculation outcomes of the assessment model are reasonable,dependable,and correct.It may serve as a benchmark for the safety control of super high⁃rise projects'integral steel platform jacking formwork systems.