Anchorages; Access Ladders; Wood Planks; Service Lifts To The Scaffolding - Marcegaglia Buildtech Realpont system 75 Instruction Manual

other than those foreseen in the dimensional allowance designs of the
system's elements are not permitted.
In the event that uprights are not parallel to a plumb line, they must be
dismantled and erected again, if possible, or alternatively appropriate
static verifications must be carried out that will guarantee that the
specific scaffolding is suitable to fulfill the requirement for which it
was initially intended.
Should dismantling and re-erection of the scaffolding not be possible,
joints can be used to add a parallel reinforcing upright to the existing
scaffolding.

Anchorages

Anchorages must be positioned every 22 square meters of scaffolding
façade or, in special cases, in the number and in the positions shown in
the erection plan. The type of anchorages, their functioning, the static
verifications and the checks to be carried out are information that
must be provided together with the technical documentation.

Access ladders

The rungs of the scaffolding ladders must conform to the requirements
of the EN12811 standards, moreover the following must be checked:
• The type of ladder must conform to regulation requirements and with
what is described in the manufacturer's manual.
• A protective guardrail must always be installed.
• e ladders must be self-blocking and tted with anti-slip feet.

Wood planks

Wood planks must always conform with what is shown in the design
plan and, in particular, the following points must be carefully checked:
• The planks must be free of traversing knots and in any event, the reduc-
tion of the reagent section areas must not be more than 10%.
• Declared minimum thicknesses must always be respected.
• Planks with overlaps (corners or changes of direction)must be ap-
propriately riveted, above all in sca oldings where wooden joists are
carrying the sca old (for example on loading mounts).
Connections
As a minimum, the following must be checked:
• Plugs: Plugs must be present and properly inserted in all the joints in
the frame and loose uprights, and in all the items listed in the manufac-
turers' manual.
• Gudgeon pins: Plugs must be present and properly inserted in longitu-
dinal tube joints when using the tube-coupler system.
• Wedge couplings: in multi-level systems in which wedge coupling con-
nections are used, the correct insertion of the wedge into the node plate
must be veri ed before proceeding with the erection of the next piece
Grip of the joints
It is imperative that the correct grip of the joints (6 daNm) be checked
with a torque wrench of all the structures or parts of particularly
important structures:
• projecting parts
• truss beams
• hoisting connections
• anchorages
The checks must be carried out periodically, even while the scaffol-
ding is in use, at intervals to be determined according to the use being
made, but not longer than 2 months.
In any case, a check must be carried out following a major climatic
event.
Metal ledger boards
The correct erection of the metal ledger boards must be checked, as
must their detachment prevention locks, using a suitable device (a
triangular rod or wedge).
Loading mounts
In cases where loading mounts with wooden scaffolding are used, the
following must be checked:
• Adherence of the trusses to the project speci cations regarding dimen-
sions, number and position.
• In any case, position the trusses close to the structural nodes.
• Check the correct thickness and positioning of the wooden planks.
• Check that the planks are riveted to the trusses.
• Check that the work loads are compatible with those speci ed in the
project.

Service lifts to the scaffolding

When li s are installed, the proper positioning of the anchorage must
be checked and above all that such anchorages are completely separate
from those of the scaffolding.
If this is not possible, the special anchorages to be used must be
covered by a report on the calculations, and by a specific erection plan
showing the loads to be borne.
Protective sheets
In cases where protective sheets are used the following must first be
ascertained:
• Determine the sheet permeability to wind; the information should be
provided by the manufacturer; if it is not, ascertain wind permeability
experimentally, empirically or theoretically.
• Verify that the permeability coincides with that indicated in the calcu-
lation report. Should it not, adjust veri cations to the new loads and, if
necessary, integrate the sca olding and anchorage structures.
• In such event, pay particular attention to check that the erection and
functioning of the anchorages correspond with the designs and veri ca-
tions detailed in the designs.
Instruction manual Prefabricated frames
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