基于线性最优化的灰色模型在桥梁施工控制中的应用  

Application of Grey Model Based on Linear Optimization in Bridge Construction Control

作　　者：柳向辉 任鑫 李俊 高典 邓小康 LIU Xianghui;REN Xin;LI Jun;GAO Dian;DENG Xiaokang(North China Branch of China Construction Eighth Engineering Bureau Co.,Ltd.,Tianjin 300450,China;School of Automobile and Traffic Engineering,Wuhan University of Science and Technology,Wuhan Hubei 430081,China)

机构地区：[1]中国建筑第八工程局有限公司华北分公司,天津300450 [2]武汉科技大学汽车与交通工程学院,湖北武汉430081

出　　处：《工程质量》2024年第5期36-40,共5页Construction Quality

摘　　要：论文分析了传统灰色理论在预测悬臂浇筑桥梁施工状态时的缺陷,提出采用线性最优化方法取代传统最小二乘法来确定GM(1,1)模型的参数,案例表明采用改进后的方法对桥梁施工状态进行预测,具有操作简单、精确度高的特点。文章还对灰色理论计算悬臂浇筑桥梁的预拱度进行了详细研究,形成了一套完整的桥梁施工控制计算方法。This paper analyzes the defects of the traditional grey theory in predicting the construction state of the cantilever casting bridge,and proposes to use the linear optimization method to replace the traditional least square method to determine the parameters of the GM(1,1)model.The case shows that the improved method is simple and accurate in predicting the construction state of the bridge.The paper also makes a detailed study on the calculation of the pre-camber of the cantilever casting bridge with the grey theory,and forms a complete set of bridge construction control calculation methods.

关 键 词：灰色模型 线性最优化 预拱度 施工控制 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]