Construcción
Construcción
Construcción
Construcción
41
MK
MK
MK
MK STRUCTURE
STRUCTURE
STRUCTURE
STRUCTURE
4.5.2.
Medium load-bearing capacity structure
For lighter form carriers, the levelling is done using
the Jack MK 60. These solutions do not require a
secondary structure for the forward-moving, and are
usually made up of 2 or 3 main structures. Common
applications are vertical formwork carriers or such
applications where load requirements of the structure
are not significant.
4.6.
4.6.
4.6.
4.6.
FORWARD
FORWARD
FORWARD
FORWARD----MOVING OF STRUCTURES:
MOVING OF STRUCTURES:
MOVING OF STRUCTURES:
MOVING OF STRUCTURES:
ROLLING SYSTEM
ROLLING SYSTEM
ROLLING SYSTEM
ROLLING SYSTEM
4.6.1.
High load-bearing capacity structure
The forward-moving of this type of structures is done
with Wheels MK 100 attached directly onto the jack
walers which form the bogie. During the process of
forward-moving, the wheels run on a guide rail. The
guide rail rests directly on the ground and is
anchored to it.
The guide rail is quite heavy (HEB-200 type) due to
the loads it must bear. The pulling of the structure to
the next pouring stage is done with the aid of load
arrester devices (e.g. Tractels).
Each form carrier or structure usually has 4 wheels
which allows of moving up to 40 tons. The wheels
are also the support points for the secondary
structure (bogie). In this case, the bogie bears the
total weight of the form carrier. Once the forward-
moving has finished, the form carrier gets blocked by
means of the jacks and the bogie gets not loaded any
more.
4.6.2.
Medium load-bearing capacity structure
Lighter form carriers are moved forward with the
Wheel MK 15 up to 60 kN. These are made up of
several main structures, and the wheels are attached
directly to the jack walers.
A lighter guide rail is used (UPN type) and the
forward-moving of the structure is done manually.
