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张(家界)-花(垣)高速公路上的酉水大桥主桥为80+145+80m三跨大跨径预应力混凝土连续梁桥,连续梁桥悬臂施工中各梁段实际状态与理想设计状态存在一定偏差。为使成桥线形符合设计要求,该文采用随机模型误差的鲁棒卡尔曼滤波算法和自适应修正函数模型对预拱度进行了分析;对张拉后各节段梁底实测标高与理论标高进行了比较,结果显示两者的误差满足监控技术要求。
Zhangjiajie - The main bridge of the Youshui Bridge on the Huayuan Expressway is the actual state and ideal of each beam in the cantilever construction of 80 × 145 + 80m three-span long-span prestressed concrete continuous girder bridge and continuous girder bridge Design status there is a certain deviation. In order to make the alignment of the bridge conform to the design requirements, this paper uses the robust Kalman filter of stochastic model error and the adaptive correction function model to analyze the pre-camber. The measured elevation and theoretical elevation Compared the results showed that the error between the two meet the monitoring technical requirements.