Method for quickly calculating bridge construction lofting coordinates

The invention discloses a method for quickly calculating bridge construction lofting coordinates, which comprises the following steps of: establishing an independent coordinate system of an abutment by taking the center of one abutment as an original point, and respectively calculating plane coordinates of feature points of each part in the independent coordinate system; calculating the plane coordinate of the center of the abutment in the bridge construction coordinate system and the azimuth angle of the longitudinal axis of the abutment; converting the plane coordinates in the independent coordinate system of the feature points of each part of the abutment into actual coordinates in a bridge construction coordinate system by utilizing the conversion parameters; and calculating to obtainthe actual coordinates of the feature points of each part of each abutment under the bridge construction coordinate system according to the actual coordinates. The reliability of bridge construction lofting coordinate data is