![]() ![]() ![]() The internal method relies on the crane being housed inside the building itself. This allows the construction and down time to be minimised, especially after the build as the take-down time to remove the crane from its anchor points and be lowered is less of the internal crane method. As each floor is gradually put together, additional struts are employed to raise the anchor base of the crane and allow the crane to reach the last few floors or access points at the top of the building. This external raising method is one of the best ways to employ a crane in taller buildings and allows construction to resume inside the building without halting progress of each floor. In this way, the crane itself can be mounted normally on the ground and with anchor struts attached to the building itself, can gradually be raised along with the building to reach the optimum height necessary. The first and most commonly used method is the external climbing system. With this technically brilliant method of hoisting the crane up the building by itself, the maximum theoretical height of a crane on a building is almost limitless and can combine two different methods of employment to gain altitude. One of the most interesting ways in which a crane can be lifted into place is a neat little trick where the crane base itself is gradually raised up, piece by piece until the crane is safely in place. In actual fact, there are various ways this can be done. It can be a mind boggling sight to see a giant crane atop a huge skyscraper and it begs the question - how on Earth do they get up there? People might think that the crane might be lifted up by helicopter or another crane, and they’d be partly right. ![]()
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