How does climbing formwork work?

https://www.zoloformwork.com/climbing-formwork/

Climbing formwork is a construction technique used in building tall structures like skyscrapers or bridges. It involves creating a temporary mold or framework that supports concrete as it's poured and sets, allowing for the construction of vertical elements like walls, columns, or cores. Here's how it typically works:

Setup: The climbing formwork system is assembled at the base of the structure or at a lower level. This system consists of a series of panels, platforms, and other supporting elements.

Concrete Placement: Concrete is poured into the formwork, filling the space where the wall or column will be. The formwork holds the concrete in place as it sets and hardens.

Climbing Mechanism: Once the concrete has partially set, the climbing mechanism is activated. This mechanism typically involves hydraulic jacks or other lifting systems that raise the entire formwork assembly by a certain increment, allowing it to move upward.

Repetition: The process is repeated for each section of the structure, with the formwork being raised incrementally as the concrete is poured and sets. This allows for continuous construction progress, even on tall buildings.

Stripping: Once the concrete has fully cured and achieved sufficient strength, the formwork is "stripped" or removed from the structure. This may involve dismantling the formwork panels and platforms or using releasing agents to facilitate easy removal.

Reuse: The formwork system can then be repositioned and reused for subsequent pours at higher levels of the structure, allowing for efficient construction progress.

Overall, climbing formwork systems enable the efficient construction of tall structures by providing a safe and stable platform for concrete placement and allowing for vertical construction to proceed incrementally.