What is the primary function of a tower crane?

The primary function of a tower crane is to lift loads vertically and then move them horizontally. Tower cranes are specifically designed for construction projects that require the lifting of heavy materials, such as steel and concrete, to significant heights. These cranes have a vertical mast and a horizontal arm, which allows them to cover a large area and effectively place materials exactly where they are needed on a construction site. The ability to move loads both vertically and horizontally maximizes efficiency and workspace in large-scale projects, such as skyscrapers and high-rise buildings.

The other functions mentioned in the choices are associated with different types of equipment used in construction. Excavating large areas is typically performed by excavators or backhoes, while compacting soil is done using compaction equipment. Supporting shoring systems is related to temporary structures that hold up walls or ceilings during construction, and is not a function of a tower crane.