There are several types of climbing formwork according to the type of building being built. They can move on their own, using hydraulic or electric jacks, commonly known as self-climbing formwork, or they can be relocated with cranes and other equipment.
The self-climbing formwork remains in place during the pouring process. Crane picked-up jump forms are typically used on buildings of five stories or more; fully self-climbing jump form systems are generally used on structures with more than 20-floor levels.
How Self-Climbing Formworks Are Assembled？
Normally, this type of formwork is constructed from steel members. Concrete form panels are attached to this frame; some of them are supported on rollers. After the concrete walls are poured, it is released and moved away from the wall. Then, if self-climbing formwork is being used, jacks lift the frame up to the next level or to the next area where it will be used. This is normally a relatively fast procedure.
Once the climbing formwork is in position, the panels are closed, and the next concrete wall is poured. The cycle continues, which is normally three to five days. Faster times can be achieved but you will need a really specialized and trained crew. However, the limiting factor to faster times is usually the construction of the floor slabs, which are poured as a separate process.
Self-Climbing Formworks Benefits
Self-Climbing formworks usually do not require a crane to move them, reducing your general condition cost.
Increased construction speed is obtained by allowing the vertical and horizontal parts of a building to be built concurrently.
It minimizes labor time and has a better productivity rate (these systems are designed for repetitive actions) and less labor is required to set up the forms.
Increased safety as the labor of setting and removing is less than traditional systems.
It does not need additional support to the formwork (it is supported by the walls just poured).
It can be used during almost all types of weather.
Normally, they provide an area for use as a scaffold.
High-quality surface finishes can be achieved.
Can sustain high winds (better productivity on windy days)
The formwork system is easy to clean and reuse with little waste generated compared to traditional systems.
Other protection systems (screens) can be hung off a big jump form and climbed with the system.
Some of these systems can be installed in such a way that even a concrete pump can also be used within the same area and space.
Long lengths can be obtained by combining different sections for each particular project.
Some formwork systems can be used at an inclined angle.
Once the learning curve has passed, performance will be optimized and work will be completed faster.
These systems will minimize the usage of scaffolding and temp work platforms.
Components of Climbing Formworks
Climbing formworks should be assembled or might be rented along with the following components:
Platforms for concrete workers
Wall formwork material and pieces
Lifting beam
Additional working platform
Suspension platforms
