马尔科夫残差修正灰色理论模型在连续梁桥施工监控中的应用
发布时间：2019-05-23 00:22
【摘要】：为了监控过程中的方便快捷,常会略去设计参数敏感性分析及其修正过程,导致灰色理论模型调整施工误差时不能符合预测要求,需要对该模型进行改进。将马尔科夫链应用于预测误差的残差序列中,对该序列再预测。结合日兰高速公路梁山连接线郓城新河大桥主桥施工控制的具体实践,通过模型计算的预测值与实测值进行对比,应用马尔科夫残差GM(1,1)修正预测误差。分析结果表明:该方法在施工控制中安全可行,该实际工程满足合龙精度的要求,成桥线形逼近设计线形。
[Abstract]:In order to be convenient and fast in the monitoring process, the sensitivity analysis of design parameters and its correction process are often omitted, which leads to the grey theoretical model can not meet the prediction requirements when adjusting the construction error, so the model needs to be improved. Markov chain is applied to the residual sequence of prediction error, and the sequence is re-predicted. Combined with the concrete practice of construction control of Yuncheng Xinhe Bridge on Liangshan connection Line of Rilan Expressway, the prediction value calculated by the model is compared with the measured value, and the Markov residual GM (1, 1) is used to correct the prediction error. The analysis results show that the method is safe and feasible in construction control, and the actual project meets the requirements of closure accuracy, and the bridge alignment approximates the design alignment.
【作者单位】： 山东大学土建与水利学院;
【分类号】：U445.4
本文编号：2483417
[Abstract]:In order to be convenient and fast in the monitoring process, the sensitivity analysis of design parameters and its correction process are often omitted, which leads to the grey theoretical model can not meet the prediction requirements when adjusting the construction error, so the model needs to be improved. Markov chain is applied to the residual sequence of prediction error, and the sequence is re-predicted. Combined with the concrete practice of construction control of Yuncheng Xinhe Bridge on Liangshan connection Line of Rilan Expressway, the prediction value calculated by the model is compared with the measured value, and the Markov residual GM (1, 1) is used to correct the prediction error. The analysis results show that the method is safe and feasible in construction control, and the actual project meets the requirements of closure accuracy, and the bridge alignment approximates the design alignment.
【作者单位】： 山东大学土建与水利学院;
【分类号】：U445.4
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