Tower cranes can often be seen on construction sites. And as the height requirements of the building floors increase, they keep rising continuously. You might think that tower cranes are lifted up by other equipment, but today you’ll learn an interesting fact that actually tower cranes lift themselves up!
Tower crane installation process
The most ingenious part of tower crane installation is the jacking and adding sections process. That is to say, after the erection of the tower is completed, standard sections are continuously added to the tower body to jack up the tower to the required height. The tower crane lifts a standard section by itself and sends it to the jacking work platform under the cab of the tower body, thus completing the action of increasing the height of the tower crane. So, tower cranes raise themselves up without relying on the assistance of other machines!
Moreover, this self-elevating ability of tower cranes is a remarkable design in the field of construction machinery. It not only simplifies the construction process but also improves work efficiency greatly. Workers operating the tower crane need to follow strict safety procedures during this jacking and adding sections operation to ensure that everything goes smoothly and safely. With the development of modern architecture, tower cranes with better performance and more advanced self-elevating technology are constantly emerging, which plays an important role in building more magnificent and taller structures all over the world.
The standard sections are bolted to the tower body when they are sent to the jack-up frame. Then, using a hydraulic jacking system, the work platform is lifted along with the sections. Meanwhile, the space on the work platform for additional standard sections is cleared. As more of the tower body becomes exposed, it indicates that the entire tower, along with the work platform, is slowly being raised. This process is repeated step by step until the tower reaches the required height.
This sequence ensures the tower crane can safely and efficiently increase in height, allowing it to meet the growing demands of the construction site. The hydraulic jacking system plays a key role in the precise and controlled lifting of both the work platform and the tower’s structure.
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