Doka Staxo 40 Operator's manual

© by Doka GmbH, A-3300 Amstetten
999805002 09/2018
en-GB
-
The Formwork Experts.
Load-bearing tower Staxo 40
with brief design as per Eurocode
User Information
Instructions for assembly and use (Method statement)
© by Doka GmbH, A-3300 Amstetten
98024-310-01

2999805002 - 09/2018
User Information Load-bearing tower Staxo 40

User Information Load-bearing tower Staxo 40
3999805002 - 09/2018
Contents
4Introduction
4Elementary safety warnings
7Doka services
8System description
10 System overview
12 Staxo 40 in detail
16 Practical examples
19 Examples of the system in action
21 Adapting to different layouts, heights and
loads
25 Extending the range of use with brackets
31 Linking towers / placing assembly-level
planking between towers
33 Assembly (overview)
35 Horizontal assembly
40 Assembling towers in the upright
40 Assembling towers in the upright with
'mounted-ahead' 1.20m frames
44 Assembling in the upright with 'move-up' front
and side railings
48 Assembling towers in the upright by forklift
truck
50 Repositioning
51 Repositioning using Staxo 40 shifting wheel
52 Lifting by crane
55 Lifting by forklift truck
56 General remarks
56 Anchoring on the structure
58 Back-stays/shoring supports for the load-
bearing towers
65 Inclination adjustment
68 Secondary-beam stabilisers
69 Forming downstand beams
71 Combining the system with standard
components from other Doka formwork
systems
72 Combining with Dokamatic tables
74 Transporting, stacking and storing
81 Structural design
85 Component overview

4999805002 - 09/2018
Introduction User Information Load-bearing tower Staxo 40
Introduction
Elementary safety warnings
User target groups
▪ This booklet is aimed at all persons who will be work-
ing with the Doka product or system that it describes.
It contains information on the standard design for
setting up this system, and on correct, compliant uti-
lisation of the system.
▪ All persons working with the product described
herein must be familiar with the contents of this
booklet and with all the safety instructions it contains.
▪ Persons who are incapable of reading and under-
standing this booklet, or who can do so only with dif-
ficulty, must be instructed and trained by the cus-
tomer.
▪ The customer is to ensure that the information mate-
rials provided by Doka (e.g. User Information book-
lets, Instructions for Assembly and Use, Operating
Instruction manuals, plans etc.) are up to date and
available to all users, and that they have been made
aware of them and have easy access to them at the
usage location.
▪ In the relevant technical documentation and form-
work utilisation plans, Doka shows the workplace
safety precautions that are necessary in order to use
the Doka products safely in the usage situations
shown.
In all cases, users are obliged to ensure compliance
with national laws, standards and regulations
throughout the entire project and to take appropriate
additional or alternative workplace safety precau-
tions where necessary.
Hazard assessment
▪ The customer is responsible for drawing up, docu-
menting, implementing and continually updating a
hazard assessment at every job-site.
This booklet serves as the basis for the site-specific
hazard assessment, and for the instructions given to
users on how to prepare and utilise the system. It
does not substitute for these, however.
Remarks on this booklet
▪ This document can also be used as a generally valid
set of Instructions for Assembly and Use (Method
Statement), or it can be incorporated into a site-spe-
cific set of Instructions for Assembly and Use
(Method Statement).
▪ The graphics in this document or app, and also
the animations and videos, depict states of par-
tial assembly in some instances and are there-
fore not always complete as regards their depic-
tion of safety equipment and measures.
Nevertheless, customer must ensure use in compli-
ance with the applicable regulations of safety equip-
ment possibly not shown in these graphics, anima-
tions and videos.
▪ The individual sections contain further safety
instructions and special warnings as applicable.
Planning
▪ Provide safe workplaces for those using the form-
work (e.g. for when it is being erected/dismantled,
modified or repositioned etc). It must be possible to
get to and from these workplaces via safe access
routes!
▪ If you are considering any deviation from the
details and instructions given in this booklet, or
any application which goes beyond those
described in the booklet, then revised static cal-
culations must be produced for checking, as well
as supplementary assembly instructions.
Regulations; industrial safety
▪ All laws, Standards, industrial safety regulations and
other safety rules applying to the utilisation of our
products in the country and/or region in which you
are operating must be observed at all times.
▪ If a person or object falls against, or into, the side-
guard component and/or any of its accessories, the
component affected may only continue in use after it
has been inspected and passed by an expert.

User Information Load-bearing tower Staxo 40 Introduction
5999805002 - 09/2018
Rules applying during all phases of
the assignment
▪ The customer must ensure that this product is
erected and dismantled, reset and generally used for
its intended purpose in accordance with the applica-
ble laws, standards and rules, under the direction
and supervision of suitably skilled persons.
These persons' mental and physical capacity must
not in any way be impaired by alcohol, medicines or
drugs.
▪ Doka products are technical working appliances
which are intended for industrial / commercial use
only, always in accordance with the respective Doka
User Information booklets or other technical docu-
mentation authored by Doka.
▪ The stability and load-bearing capacity of all compo-
nents and units must be ensured during all phases of
the construction work!
▪ Do not step on or apply strain to cantilevers, clo-
sures, etc. until suitable measures to ensure their
stability have been correctly implemented (e.g. by
tie-backs).
▪ Strict attention to and compliance with the functional
instructions, safety instructions and load specifica-
tions are required. Non-compliance can cause acci-
dents and severe injury (risk of fatality) and consid-
erable damage to property.
▪ Sources of fire in the vicinity of the formwork are pro-
hibited. Heaters are permissible only when used cor-
rectly and situated a correspondingly safe distance
from the formwork.
▪ Customer must give due consideration to any and all
effects of the weather on the equipment and regards
both its use and storage (e.g. slippery surfaces, risk
of slipping, effects of the wind, etc.) and implement
appropriate precautionary measures to secure the
equipment and surrounding areas and to protect
workers.
▪ All connections must be checked at regular intervals
to ensure that they are secure and in full working
order.
In particular threaded connections and wedged con-
nections have to be checked and retightened as nec-
essary in accordance with activity on the jobsite and
especially after out-of-the-ordinary occurrences (e.g.
after a storm).
▪ It is strictly forbidden to weld Doka products – in par-
ticular anchoring/tying components, suspension
components, connector components and castings
etc. – or otherwise subject them to heating.
Welding causes serious change in the microstruc-
ture of the materials from which these components
are made. This leads to a dramatic drop in the failure
load, representing a very great risk to safety.
It is permissible to cut individual tie rods to length
with metal cutting discs (introduction of heat at the
end of the rod only), but it is important to ensure that
flying sparks do not heat and thus damage other tie
rods.
The only articles which are allowed to be welded are
those for which the Doka literature expressly points
out that welding is permitted.
Assembly
▪ The equipment/system must be inspected by the
customer before use, to ensure that it is in an accept-
able condition. Steps must be taken to exclude com-
ponents that are damaged, deformed, or weakened
due to wear, corrosion or rot (e.g. fungal decay).
▪ Mixing our formwork systems with those of other
manufacturers can create risks that may lead to
injury and damage to property. This requires sepa-
rate verification.
▪ The equipment/system must be assembled and
erected in accordance with the applicable laws,
standards and rules by trained customer personnel
whilst maintaining any applicable safety inspections
that may be required.
▪ It is not permitted to modify Doka products; such
modifications constitute a safety risk.
Closing the formwork
▪ Doka products and systems must be set up so that
all loads acting upon them are safely transferred!
Pouring
▪ Do not exceed the permitted fresh-concrete pres-
sures. Over-high pouring rates overload the form-
work, cause greater deflection and risk breakage.
Stripping out the formwork
▪ Do not strip out the formwork until the concrete has
reached sufficient strength and the person in charge
has given the order for the formwork to be stripped
out!
▪ When stripping out the formwork, never use the
crane to break concrete cohesion. Use suitable tools
such as timber wedges, special pry-bars or system
features such as Framax stripping corners.
▪ When stripping out the formwork, do not endanger
the stability of any part of the structure, or of any
scaffolding, platforms or formwork that is still in
place!

6999805002 - 09/2018
Introduction User Information Load-bearing tower Staxo 40
Transporting, stacking and storing
▪ Observe all country-specific regulations applying to
the handling of formwork and scaffolding. For system
formwork the Doka slinging means stated in this
booklet must be used – this is a mandatory require-
ment.
If the type of sling is not specified in this document,
the customer must use slinging means that are suit-
able for the application envisaged and that comply
with the regulations.
▪ When lifting, always make sure that the unit to be
lifted and its individual parts can absorb the forces
that occur.
▪ Remove loose parts or secure them so that they can-
not slip out of position and drop.
▪ All components must be stored safely, following all
the special Doka instructions given in the relevant
sections of this document!
Maintenance
▪ Only original Doka components may be used as
spare parts. Repairs may only be carried out by the
manufacturer or authorised facilities.
Miscellaneous
The weights as stated are averages for new material;
actual weights can differ, depending on material toler-
ances. Dirt accretions, moisture saturation, etc. can
also affect weight.
We reserve the right to make alterations in the interests
of technical progress.
Symbols used
The following symbols are used in this document:
DANGER
This is a notifier drawing attention to an
extremely dangerous situation in which non-
compliance with this notifier will lead to death
or severe, irreversible injury.
WARNING
This is a notifier drawing attention to a dan-
gerous situation in which non-compliance
with this notifier can lead to death or severe,
irreversible injury.
CAUTION
This is a notifier drawing attention to a dan-
gerous situation in which non-compliance
with this notifier can lead to slight, reversible
injury.
NOTICE
This is a notifier drawing attention to a situa-
tion in which non-compliance with this noti-
fier can lead to malfunctions or damage to
property.
Instruction
Indicates that actions have to be performed
by the user.
Sight-check
Indicates that you need to do a sight-check
to make sure that necessary actions have
been carried out.
Tip
Points out useful practical tips.
Reference
Cross-references other documents.

User Information Load-bearing tower Staxo 40 Introduction
7999805002 - 09/2018
Doka services
Support in every stage of the project
▪ Project success assured by products and services
from a single source.
▪ Competent support from planning through to assem-
bly directly on site. High performance, in all stages of the project
Project assistance from start to finish
Every single project is unique and calls for individual-
ised solutions. When it comes to the forming opera-
tions, the Doka team can help you with its consulting,
planning and ancillary services in the field, enabling
you to carry out your project effectively, safely and reli-
ably. Doka assists you with individual consulting ser-
vices and customised training courses.
Efficient planning for a safe project sequence
Efficient formwork solutions can be developed eco-
nomically only if there is an understanding of project
requirements and construction processes. This under-
standing is the basis of Doka engineering services.
Optimise construction workflows with Doka
Doka offers special tools that help you in designing
transparent processes. This is the way to speed up
pouring processes, optimise inventories and create
more efficient formwork planning processes.
Custom formwork and on-site assembly
To complement its system formwork range, Doka
offers customised formwork units. And specially
trained personnel assemble load-bearing towers and
formwork on site.
Just-in-time availability
Formwork availability is a crucial factor in realising
your project on time and on budget. The worldwide
logistics network puts the necessary formwork quanti-
ties on site at the agreed time.
Rental and reconditioning service
The formwork material needed for any particular pro-
ject can be rented from Doka’s high-performing rental
park. Doka Reconditioning cleans and overhauls both
client-owned equipment and Doka rental equipment.
Tender Operations
scheduling
Construction
work
Project close-
out
Engineering
▪ Execution planning
▪ Cycle planning
▪ Structure modelling/3D-planning
▪ Assembly drawings
▪ Statical calculation
Consulting and training
▪ Project processing on-site
▪ Formwork instructor
▪ Training & consulting
Process optimisation
▪ Concremote
▪ myDoka
▪ Planning software
▪ Depot management
Pre-assembly and assembly
▪ Pre-assembly service
▪ Formwork pre-assembly on
site
Logistics
▪ Organisation of transport & freight
Rental and reconditioning service
▪ Rental service
▪ Formwork returns
▪ Reconditioning & service fixed rates

8999805002 - 09/2018
System description User Information Load-bearing tower Staxo 40
System description
Staxo 40 – the ergonomic shoring
system for the building construction
field
Easy to handle
for high-speed working
Highly ergonomic design, featuring
▪ low unit weight
▪ ergonomically optimised frame geometry
▪ small number of system components
▪ logical assembly sequence
Highly cost-efficient
for all building-construction shoring needs
Unbeatably cost-efficient, thanks to
▪ fast workflow
▪ crane-time-saving erection method
▪ optimised equipment utilisation thanks to the flexible
inter-frame spacing
▪ tower-to-tower walkway openings for fast working
inside the scaffold and beneath the superstructure
Maximum safety
even with large shoring heights
Safe erection and dismantling ensured by
▪ defined attachment points for personal fall arrest
systems (PFAS)
▪ liftout-proof scaffold planking units
▪ full-area assembly levels
▪ brackets for enhanced safety at slab-edges
Areas of use
▪ in building construction (e.g. hotel entrance lobbies)
▪ for low slab loads
▪ Staxo 40's load-bearing capacity of up to 45 kN per
leg is thus economically optimised for shoring-tower
superstructures that use double H20 beams as their
primary beams
▪ ideal for use on slab heights of over 4 m
▪ for safe shoring of slab-edges
▪ for low-load applications in civil-engineering projects
(e.g. cantilever slabs on bridges)
Revolutionary H-frame for easy handling and fast working
Brackets for safe working at the slab-edge

User Information Load-bearing tower Staxo 40 System description
9999805002 - 09/2018
The tower-to-tower walkway opening and gapless, full-area assembly levels ensure fast, safe working inside the scaffold and beneath the super-
structure
98024-301-01

10 999805002 - 09/2018
System description User Information Load-bearing tower Staxo 40
System overview
Basic design concept
a ... inter-frame spacing = 100 / 150 / 175 / 200 / 250 / 300 cm
b ... frame width = 150 cm (not compatible with Load-bearing towers
d2, Staxo, or Staxo 100)
The Staxo 40 system components
Head units (A)
Staxo 40 frames (B)
AHead unit
BStaxo 40 frame
CDiagonal cross
DBase unit
EScaffold planking 30/...cm
FScaffold planking 60/...cm with manhole
98024-200-01
a
b
B
A
E
F
C
C
D
Staxo 40 4-way
screw-jack
head 30cm
Staxo 40 4-way
screw-jack
head 70cm
Staxo 40 screw
jack U-head
30cm
Staxo 40 screw
jack U-head
70cm
Top height-adjustment spindle for load-bearing towers. For holding
the superstructure and adjusting its height.
May be used with either one or
two Doka H20 beams.
For holding steel girders (e.g.
Multi-purpose walings or Doka-
matic table walings).
The primary beams are fixed so
that they cannot tip over.
Staxo 40 frame
1.80m
Staxo 40 frame
1.20m
Staxo 40 frame
0.90m
Hot-dip galvanised steel frames.
98024-299-01
98024-298-01
98024-300-01

User Information Load-bearing tower Staxo 40 System description
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Diagonal crosses (C) Base units (D)
Scaffold planking units (E)
Drop-in steel-tube bracing crosses
between the frames.
Identified by:
▪ Embossed marking (G) e.g.
18.250
- 18 = frame height 1.80 m
- 250 = inter-frame spacing
250 cm
▪ Notched, colour-coded clips (H)
(see table)
Designation Colour-coded
clip Notches
Diagonal cross 9.100 Green —
Diagonal cross 9.150 Red —
Diagonal cross 9.175 Light green —
Diagonal cross 9.200 Blue —
Diagonal cross 9.250 Yellow —
Diagonal cross 9.300 Orange —
Diagonal cross 12.100 Green 1
Diagonal cross 12.150 Red 1
Diagonal cross 12.175 Light green 1
Diagonal cross 12.200 Blue 1
Diagonal cross 12.250 Yellow 1
Diagonal cross 12.300 Orange 1
Diagonal cross 18.100 Green 3
Diagonal cross 18.150 Red 3
Diagonal cross 18.175 Light green 3
Diagonal cross 18.200 Blue 3
Diagonal cross 18.250 Yellow 3
Diagonal cross 18.300 Orange 3
Basic rule:
To maintain correct geometry, horizontally placed
Diagonal crosses 12.xxx or shear-rigid planking units
must be fitted in the following cases:
▪ in the bottom and top 'storeys'
▪ every 10 m
▪ in between as required, e.g. where
- there is a horizontal restraint for the tower
(even a temporary one)
- local loads need to be transferred (e.g. from a
bracket or from attaching the tower to the crane
when it is assembled in the horizontal)
G
H
98024-205-01
C
Staxo 40 screw-jack foot 30cm Staxo 40 screw-jack foot 70cm
Scaffold planking 30/...cm Scaffold planking 60/...cm with
manhole
Steel scaffold planking units for
making safe assembly decks.
Aluminium/timber scaffold plank-
ing units with self-closing cover,
for making safe assembly decks.
Integral anti-liftout guard
Width: 30 cm Width: 60 cm
Lengths: 100 / 150 / 175 / 200 / 250 / 300 cm
Permitted service load: 1.5 kN/m2 (150 kg/m2)
Load Class 2 to EN 12811-1:2003

12 999805002 - 09/2018
System description User Information Load-bearing tower Staxo 40
Staxo 40 in detail
Features of the Staxo 40 frames
Only 24.5 kg, 18.0 kg or 15.0 kg, depending on the type
of frame.
Ergonomic design
Ergonomically shaped – easy to carry, as it can be held
at or near the frame's centre of gravity
Framework scaffolding with passageway
opening created by inverting the frames
Turning the frames upside-down creates ample head-
room for safe working inside the scaffold and beneath
the towerframe superstructure.
Staxo 40 frame 1.80m
Staxo 40 frames 1.20m and 0.90m
1.80m frames 1.80m frames with
inverted top frame
1.20m frames with
inverted top frame
98024-207-01
98024-207-02
98024-219-01
1.70m
98024-219-02
2.00m
98024-219-03
2.00m

User Information Load-bearing tower Staxo 40 System description
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Safety catch
▪ tried-and-tested interconnection system (captive)
▪ secures the diagonal crosses
▪ two defined positions (closed – open)
▪ works in both directions, i.e. on inverted frames as
well
▪ also secures the diagonal crosses when towers are
assembled in the horizontal, and when the frame is
positioned so that the safety-catch bolts are at the
bottom (rather than the top) of the frame crossbar
Anchorage points for personal fall arrest
systems (PFAS)
Closed Open
98024-240-01
98024-240-03
98024-240-02
98024-240-04
WARNING
➤Make sure that the anchorage point is at or
above the required minimum height, as oth-
erwise there will not be sufficient room to
arrest a fall.
Permitted anywhere on the diagonal tube of the frame.
Prohibited on the integrated universal U-bracket.
98024-328-02
98024-328-01
98024-343-01

14 999805002 - 09/2018
System description User Information Load-bearing tower Staxo 40
Many possible ways of connecting couplers
On vertical tubes – Staxo 40 frame 1.80m
a ... max. 25 cm (this stays within the max. distance of 16cm which
EN 12812 stipulates from the node point of the centre-lines of the
load paths)
Staxo 40 frames 1.20m and 0.90m
a ... max. 25 cm (this stays within the max. distance of 16cm which
EN 12812 stipulates from the node point of the centre-lines of the
load paths)
On the horizontal profile – on all types of frame
a ... 34 cm
b ... 11 cm
On the screwjack head and base units
On the 70cm long screwjack head and base units,
Swivel couplers 48mm or Normal couplers 48mm can
be fastened to the threadless section of the tube.
Also, a Screw-on coupler 48mm 95 can be mounted to
the holes in the threadless section of tube on all 70cm
long screw-jack U-heads and feet.
ASwivel coupler 48mm or Normal coupler 48mm
ASwivel coupler 48mm or Normal coupler 48mm
98024-209-01
A
A
a
a
98024-209-02
A
a
a
BScrew-on coupler 48mm 95
Staxo 40 4-way
screw-jack head
70cm
Staxo 40 screw jack
U-head 70cm
Staxo 40 screw-jack
foot 70cm
ASwivel coupler 48mm or Normal coupler 48mm
BScaffold tube 48.3mm
NOTICE
For information on dimensioning braced
screw-jack heads and feet, see the type spec-
ification sheet.
98024-233-01
B
a
b
98024-306-01
A
C
98024-306-02
A
C
98024-306-03
A
C
98024-307-01

User Information Load-bearing tower Staxo 40 System description
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Linking the frames
Staxo 40 coupler
The vertically stacked frames are attached to one
another by the Staxo 40 coupler with its integrated
stop-ring.
Because this coupler extends such a long way (15 cm)
into each frame, no extra pin-type safety locks are
needed when towerframes are erected and dismantled
in the upright.
A crane-handling-safe link, using a Staxo 40 tube con-
nector d48.3mm, is required in the following cases
▪ when the towerframes are assembled in the horizon-
tal
▪ when the towerframes are lifted by crane
▪ if there are forces acting upon the tower which cause
tensile stress
Securing the screw-jack heads and feet
against pull-out
Staxo 40 anti-dropout lock (E)
A crane-handling-safe link, using a Staxo 40 anti-drop-
out lock, is required in the following cases:
▪ when the towerframes are assembled in the horizon-
tal
▪ when the towerframes are lifted by crane
▪ if there are forces acting upon the tower which cause
tensile stress
Erecting quadratic towers
Permitted tensile force 11.7 kN
98024-213-01
98024-213-02
Permitted tensile force 5 kN
NOTICE
On quadratic (150x150 cm towers), do not mix
the frame plane and bracing-strut plane within
the same tower!
98024-282-03
E
98024-214-01
E
98024-305-01 98024-304-01

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System description User Information Load-bearing tower Staxo 40
Practical examples
In building construction, e.g.
entrance lobbies
Tableform units
▪ For repetitive use, the load-bearing tower can be
assembled into complete table-forms.
Edge floor-beam
For downstand beams, the load-bearing towers and
beam-forming supports can be combined very effec-
tively with Dokaflex.
98024-239-01
ALoad-bearing tower
BDokaflex
CBeam forming support 20
DHandrail post T 1.80m (optionally with Toeboard holder
T 1.80m), Edge protection system XP, Handrail clamp S or
Handrail post 1.50m
ELashing strap 5.00m
FDoka express anchor 16x125mm and Doka coil 16mm
WARNING
➤Where formwork beams cantilever out a long
way, secure them against accidental lift-out.
98024-234-01
980 -23 -0124 6
A B
C
D
E
F

User Information Load-bearing tower Staxo 40 System description
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Downstand beams
Safe access routes around slab-
edges
With the Staxo 40 bracket 90cm and using e.g. a
plumbing strut to prevent tower tip-up.
Sustaining the concreting loads, e.g.
from projecting floor-slabs
With the Staxo 40 bracket, shored with a plumbing
strut, for transferring the concreting loads.
Tower tip-up is prevented by e.g. a plumbing strut.
98024-235-01
98024-262-01
98024-287-01

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System description User Information Load-bearing tower Staxo 40
Flexible adaptation to the structure.
Extra frame-plane
Independently of the system-grid, an extra frame-plane
can be added with the aid of scaffold tubes.
x ... continuously adjustable from 20 cm to 150 cm
Combining with floor props
ABracing with scaffold tubes 48.3mm
Follow the directions for dimensioning in the
'Load-bearing tower Staxo 40' type-test docu-
mentation and/or consult your Doka techni-
cian.
x96615-227-01
A
A
9 -018024-341

User Information Load-bearing tower Staxo 40 System description
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Examples of the system in action

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System description User Information Load-bearing tower Staxo 40