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Introduction to Tower Crane:

The lifting and moving of heavy objects like steel, concrete, and building materials is done by tower cranes, which are robust machines used on construction sites. Large-scale projects like building high-rises, bridges, and dams depend on them.

Tower Crane

A tower or central mast, a horizontal boom or jib, a trolley and a counterweight make up a tower crane. Up to 265 feet tall, the mast is typically constructed of steel sections. The mast holds the 230-foot-long jib, which is attached to it. The counterweight balances the load's weight while the trolley moves along the jib while lifting and moving objects.

Construction Of Tower Crane:

Tower crane construction involves a number of steps and calls for qualified engineers and technicians. The fundamental steps in building a tower crane are listed below.

construction of Tower Crane

Base: Building a solid foundation and base for the crane to sit on is the first step in building a tower crane. Typically, a concrete base is poured and fastened to a steel anchor by digging a hole in the ground.

Mast or Tower:  After laying the foundation, the mast or tower is built. High-strength steel pieces that are bolted together on site typically form the mast. The maximum height of the building being constructed determines the mast's height.

Counter jib: The counter jib is on the opposite side of the mast from the jib , it holds the engine and the counterweights.

Counterweights: Counterweights are necessary because the load lifted by the jib exerts a torque which without an appropriate counterweight  would damage the structure of the crane.

Trolley: The trolley responsible for lifting and moving the load , runs along the jib.

Electrical Control System: The electrical and control systems that enable the crane to be operated safely and effectively must be installed as the last stage.

How Tower Crane Setup:

When a tower crane is set up, the first parts are assembled with the help of another crane . Then the crane ' builds itself ' , as shown in the animation.Such cranes are called self - erecting cranes. 

The product of the length of the lever arm and the load weight is the torque . If this exceeds a certain limit , the structure of the crane may be damaged , the jib may break or the crane may tilt . Thus the heavier the load , the smaller the radius.

tower crane is set up