基于BIM的小样本数据下装配式施工安全评价研究

Research on Assembled Construction Safety Evaluation Based on BIM with Small Sample Data

本文从BIM技术运用于预制装配式建筑施工成本控制的优势出发,利用小样本数据特点,借助Bayes判别明显的统计优势,全面考虑装配式施工安全生产自身实际特点与标准规范,建立装配式施工安全评价的Bayes判别分析(BDA)模型。通过训练和检验8组学习样本集的装配式建筑的特征参数值获取装配式建筑施工安全的BDA模型,并以其余3组测试集样本测试该模型,实际情况与测试结果一致。研究结果表明:印证了BDA回判估计与BIM技术在装配式建筑施工安全评价的融合运用,为搭建安全评价体系框架的形成和完善提供了借鉴。

This paper starts from the advantages of BIM technology applied to the construction cost control of prefabricated buildings,uses the characteristics of small sample data,and uses Bayes to identify obvious statistical advantages.Fully considering the actual characteristics and standards of safety production in assembly construction,Bayes discriminant analysis(BDA)model for safety evaluation of assembly type construction is established.The BDA model for the construction safety of prefabricated buildings is obtained by training and testing the characteristic parameter values of prefabricated buildings in 8 groups of learning sample sets,and the model is tested with the remaining 3 groups of test set samples.The actual situation is consistent with the test results.The research results show that,this confirms the integration of BDA back judgment estimation and BIM technology in the safety evaluation of prefabricated building construction,and provides a reference for the formation and improvement of the safety evaluation system framework.