Tower cranes consist of a base, the tower—or mast—and a slewing unit at the top. The slewing unit holds the horizontal jib that lifts and places the crane's
1) The external climbing method, in which the crane — the arm plus its tower — expands upward along the outside of the building. · 2) The internal climbing
In order to even construct a tower crane, a large, exceedingly heavy concrete pad has to be laid where the base will be. The actual base of the crane is then
![[STEEL Talk] How Does the Tower Crane Become Taller?](/file/pic/1.jpg)
