Method and device for determining dimension of hoop on electric pole in distribution network line

The invention relates to a method and a device for determining the dimension of a hoop on electric pole in a distribution network line. The method comprises the following steps that determining a first boundary point and a second boundary point of which the crack width in the electric pole is equal to a maximum crack width limiting value under a service limit state, and obtaining a first bending moment corresponding to the first boundary point and a second bending moment corresponding to the second boundary point; and obtaining first hoop thickness to be selected on a hoop installation position, second hoop thickness to be selected on the first boundary point and third hoop thickness to be selected on the second boundary point. In other words, three optional thicknesses of the hoop can be obtained, the thickness of the hoop is determined through the comparison of the three optional thicknesses, and then, the length and the internal diameter of the hoop are determined so as to determine the dimension of the ho