Application of Intelligent Total Station in Measuring Large Bridge′s Deformation Observation

The technical features of intelligent total stations are briefly introduced.The method and the formula of bridge deformation survey with total station are laid much emphasis.And the accuracy of bridge flexibility survey with total station is analyzed with law of error propagation.The Qingdao-Yinchuan highway on the Yellow River bridge flexibility′s observations with total station and its theoretical calculations are contrasted and analyzed.It proves that the observation results are reliable.In the end,it was indicated that measuring large bridge′s flexibility with total station was totally feasible.