润扬大桥悬索桥全站仪法挠度变形观测

为科学评价桥梁结构体系的实际使用性能,大型桥梁竣工验收时必须进行静载试验。针对润扬大桥悬索桥静载试验工程项目,研究了利用全站仪进行桥梁挠度变形观测的方法。论文介绍了全站仪法测量桥梁挠度的原理和计算公式,并对全站仪法观测桥梁挠度变形值的测量精度进行了分析。通过到润扬大桥实地踏勘,制订了全站仪法挠度变形观测的具体方案。通过对全站仪实测数据和理论计算数据的比较和分析,证明了全站仪法大型桥梁挠度变形测量结果可靠,观测效率高。

The Method of Deflection Deformation Survey with Total Station Instrument for the Suspension Bridge of Runyang Bridge

In order to evaluate the practical performance of the structural system of a large-sized bridge scientifically,a plate-loading test for the bridge must be done when it is completed.Based on the project of plate-loading test program for the suspension bridge of Runyang Bridge,the article studied on the method of the deflection deformation survey for a large-sized bridge with total station instrument.The theory and the formula of the deflection deformation survey with total station instrument were introduced,and the survey accuracy was analyzed.The steps of the method with total station instrument for survey deflection deformation were drawn after the scene of Runyang Bridge being looked around.By comparing the survey data from the total station instrument with those from theoretical calculating,it is proved that the results by the new method are reliable,and that the method of deflection deformation survey of the large-sized bridge with total station instrument is efficient.