基于熵值修正BWM的装配式建筑施工安全评价  

Safety evaluation of prefabricated building construction based on entropy correction BWM

作　　者：李强年[1] 陈文清 LI Qiangnian;CHEN Wenqing(School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学土木工程学院,兰州730050

出　　处：《安全与环境学报》2023年第8期2580-2588,共9页Journal of Safety and Environment

基　　金：国家自然科学基金项目(72061023);甘肃省自然科学基金项目(20JR10RA173)。

摘　　要：为降低装配式建筑施工安全事故发生率,针对国内装配式建筑施工特点,构建基于熵值修正最优最劣法(Best-Worst Method,BWM)的改进逼近理想解排序法(Technique for Order Preference by Similarity to an Ideal Solution,TOPSIS)装配式建筑施工安全评价模型。首先,通过分析装配式建筑建造全过程,查阅文献资料,结合相关标准和规范,从人、物、技术、管理和环境5个方面构建装配式建筑施工安全评价指标体系。然后,基于熵值修正BWM得到组合权重,建立加权规范矩阵,应用改进TOPSIS对装配式建筑施工安全进行评价。最后,以3个实际工程项目为例验证评价模型,结果表明,该模型在装配式建筑施工安全评价中具有较好的可行性和实用性。To reduce the safety accident rate of prefabricated building construction,according to the characteristics of domestic prefabricated building construction,this paper proposes an improved Technique for Order Preference by Similarity to an Ideal Solution(TOPSIS)method based on the entropy method to modify the Best-Worst Method(BWM).Combined with relevant standards and specifications,through the statistics of safety accidents,analysis of the construction process,and literature review of prefabricated buildings in recent years,the safety evaluation index system is constructed from five aspects:people,materials,technology,management,and environment.To solve the problem that the uncertainty and disorder of the index cannot be fully considered when determining the index weight,and to avoid the shortcomings that the subjective and objective methods calculate the weight separately,this paper uses the entropy method to modify the BWM to obtain the index combination weight.The modified subjective weight overcomes the subjective problem caused by direct weighting,and can scientifically rank the indexes to find out the safety influencing factors that meet the needs of the project.The improved TOPSIS method is applied to evaluate the safety of prefabricated building construction,and the safety grade of a prefabricated building project is determined according to the closeness.Last but not least,the feasibility and practicability of the evaluation model were verified by taking three representative prefabricated-type construction projects as examples,and the safety levels of the three projects were obtained as safe,very safe,and safe respectively.The results show that the evaluation results of the model are consistent with the actual situation,indicating that the TOPSIS method can quickly and accurately evaluate the safety level.To accurately obtain the specific factors leading to the low safety level,formulate targeted countermeasures,improve the overall safety management level,and reduce the cost of safety management,the safety

关 键 词：安全工程 装配式建筑 安全评价 最优最劣法(BWM) 改进逼近理想解排序法(TOPSIS) 

分 类 号：X947[环境科学与工程—安全科学]