PURPOSE: To provide a method for lifting a construction crane without using a tower in constructing a multilayer building. ;CONSTITUTION: This method for lifting a construction crane includes providing a hoisting frame 2 having a lifting pulley 3 on the floor face of an upper story above the construction crane 1, and after a movement rope 17 extending from a winch 15 through the lifting pulley 3 is connected to the construction crane 1, winding the movement rope 17 by means of the winch 15 to hoist the crane to the upper story to install it there. Since no tower is thus required, construction work for the interior of a lower story and the like can be finished even before removal of the construction crane 1, whereby the period of construction work can be reduced.;COPYRIGHT: (C)1994,JPO
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