Like those three hundred or four hundred meter tall skyscrapers, where are the bottom of these tower cranes installed?It doesn't go up from the ground, little by littleWill the crane not fall down?
The installation of tower cranes is certainly a guaranteeThe installer is dangerous,
A firm foundation is built before the tower crane is used, and then the crane is fixed to the foundation
It's just a little bit needed, and you're right!! As long as the requirements to ensure verticality, no problemBuilding technical requirements, such as Perpendicularity Error of not more than 3 millimeters per 100 meters, can be guaranteed by the building.