Rapid assembling method for large electric tower

The invention provides a large electric tower rapid assembly method, which relates to the technical field of electric tower assembly, and comprises the following operation steps: S1, constructing an iron tower foundation, and synchronously pre-burying tower body connecting pieces and cross beam fixing pre-buried pieces; s2, after the iron tower foundation concrete reaches the strength, a cross beam is installed and locked; and S3, an external auxiliary frame, a foundation frame, a section of standard frame, a top frame and a jacking assembly are installed on the top of the cross beam, and a truck crane is matched with manual work for installation. According to the method, a traditional method for assembling the iron tower from bottom to top in a positive sequence is changed, a method for assembling the iron tower from top to bottom in a reverse sequence and jacking synchronously is adopted, an operator stands on a bottom operation platform to assemble the iron tower under the cooperation of a truck crane, and