Construction method of steel tower of bridge and dismantling method of lifting frame

PURPOSE: A construction method for a steel tower of a bridge and a dismantling method for a lifting frame are provided to safely and rapidly dismantle a lifting frame without damage to a steel tower of a bridge. CONSTITUTION: A construction method for a steel tower of a bridge is as follows. A lower tower is rolled-up and is installed on a tower base(S1100). An upper tower is rolled-up and is pulled up using a floating crane(S1210). The bottom end of the upper tower is coupled to the top end of the lower tower(S1220). An auxiliary wire is coupled to a lifting frame to be hung on a hook, and the lifting frame is cut and pulled up(S1230).