how do they get cranes on top of buildings

When you look at a tall building being constructed, you may notice a crane towering above it. But have you ever wondered how they get these massive machines up there? Well, it's not as simple as just taking the elevator! In this article, we will explore the various methods used to get cranes on top of buildings.

The Problem

The biggest challenge in getting a crane on top of a building is the size and weight of the machine. Most cranes can weigh anywhere from 50 to 1,300 tons, depending on their size and capacity. And they can reach heights of over 1,000 feet! So moving them requires some serious planning and special equipment.

Method #1: Mobile Cranes

One of the most common methods of getting a crane on top of a building is to use a mobile crane. This involves using a smaller portable crane to lift the crane's components to the top of the building one by one. The base of the crane is assembled on the ground and lifted to the top of the building, followed by the mast and the jib. Once all the components are in place, the crane is rigged and tested before it can start working.

Method #2: Climbing Cranes

Another method used to get cranes on top of buildings is to use climbing cranes. These cranes are specially designed to be raised and lowered as the building gains height. They are assembled on the ground with a base and mast that can be raised with hydraulic jacks. Once the mast is at the desired height, the crane climbs up it, inserting new mast sections underneath until it reaches the top.

Method #3: Helicopter

In some cases where a mobile or climbing crane is not feasible, a helicopter can be used to transport smaller cranes to the top of a building. This method is typically reserved for projects in remote or mountainous areas or where there is limited space for a crane to be assembled on the ground.

Conclusion

In conclusion, getting a crane on top of a building is no easy feat. It often requires strategic planning and specialized equipment to handle the crane's massive size and weight. But, with the right approach and experienced professionals, it can be done safely and efficiently.