With the increasing of wind power generation facilities,structure safety is particularly important in the service of wind power towers.Wind power towers are a typical top-heavy structure which is similar to a kind of thin-wall cylindrical structure.The supporting structure of a wind power tower is forced under the pressure of the upper engine room,rotor and blades,the side of the tower is thrust by ocean wind,and when earthquakes happen the tower undergoes the horizontal and vertical seismic action.Since th...