components & assembly
Slipform International
systems employ robust hydraulic jacks, controlled from a central
power unit, and fitted to substantial steel yokes. The yokes form
part of a rigid assembly which incorporates steel formwork and
steel walings.
This advanced
system utilises a jack climbing on a 48mm diameter steel tube
which has considerably greater stability than a smaller diameter
solid rod. This enables jacks of higher capacity to be employed
with the consequent increase in yoke centres and platform area.
Three levels
of platforms are commonly used with this system. The upper platform
acts as a storage and distribution area and can incorporate guide
templates for the vertical reinforcement bars. It provides weather
protection and adds rigidity to the overall assembly which significantly
influences the accuracy which can be achieved. Concrete, reinforcement,
door frames, blockouts and plant items can be accommodated at
the upper level. This reduces congestion on the middle platform,
level with the top of the shutter, where operations are carried
out in safe and sheltered conditions. The lower platform, supported
on rigid suspended scaffold frames, provides access to the concrete
immediately below the shutter to enable finishes to be applied
and blockouts to be exposed.
