Delsan-A.I.M. used these cranes to remove a total of 464 reinforced concrete panels, which weighed from 4,500 to 13,500 lbs., that were installed on the concaved facades of the tower.
Delsan-A.I.M. utilized custom-designed lifting apparatus to allow the panels to be rigged from the floors inside of the tower.
In addition, Delsan-A.I.M. had a custom designed hoisting device engineered that was installed inside the tower to remove 80 of the panels, which were located along its underside and therefore, not accessible by means of the tower cranes. These panels were lifted from the inside using the hoisting device; lowered to the level directly below; transferred to an opening in the façade; and subsequently lowered to ground level using one (1) of the two (2) tower cranes.
Delsan-A.I.M. was contracted to undertake the removal of precast panels and glazing over a six (6) month period in preparation for a major renovation of the Olympic Stadium Tower, which is the tallest inclined tower in the world at 541 ft.
Two (2) tower cranes were set up on either side of the tower for the removal of the old curtain wall and the installation of the new one.