大跨度预应混凝土箱梁桥的挠度监测与预测研究

结合某大跨度预应力混凝土箱梁桥挠度监测实例,详细地介绍了该桥挠度变形监测的方法、测点布置、观测精度和数据的处理。结合挠度变形实测资料,运用改进的灰色模型对各监测点挠度变形进行了预测,结果表明,该桥挠度变形监测所运用的监测方法及预测方法具有较高的精度,能够较好地满足该桥挠度变形监测分析需要,对其它类似桥梁的挠度监测与预测具有较好的参考价值。

Monitoring and Forecasting of Deflection of Long Span Prestressed Concrete Continuous Box Beams

Combination with the deflection monitoring case of a certain long span prestressed concrete continuous box bridge,the article describes the method of deflection deformation monitoring,the arrangement of measure point,monitoring accuracy and settlement of data.With the measured information the author will use the improved grey model to forecast the deformation value of bridge deflection at different times,and the result indicates that the monitoring and forecasting method that the author uses have high accuracy,which can meet the bridge deformation monitoring and analyzing demand well,and has high reference value for the similar bridges deformation monitoring.