User information
11/2004 Ü 999706002
GB
Doka dam formwork
9706-201-01
The Th e Fo Formw rmwork ork Exp Experts erts
User information Doka dam formwork
Introduction
Important notice: For safe use of our products, please observe all relevant regulations issued by the local health and safety authorities in the country in which you are operating. Certain illustrations in this brochure show the situation during formwork assembly and are therefore incomplete from the point of view of safety. The instructions for function and use of the f ormwork given in this brochure must be strictly adhered to. If any deviations from these instructions are contemplated, revised static cal culations must be produced for checking. All materials must be inspected before use to ensure that they are in a safe condition. Any components that are damaged, deformed, or weakened due to wear, corrosion or rot must not be used. Use only original Doka components as replacement parts. Combining our formwork systems with those of other manufacturers could be dangerous and therefore requires special checking.
2
The Formwork Formwork Expert Expertss
If required, we can provide trained personnel to give on-site instruction in use of the formwork. We reserve the right to make alterations in t he interests of technical progress. All dimensions given in cm unless otherwise indicated. © by Doka Industrie GmbH, A-3300 Amstetten
999706002 - 11/2004 Ü
User information Doka dam formwork
Introduction
Important notice: For safe use of our products, please observe all relevant regulations issued by the local health and safety authorities in the country in which you are operating. Certain illustrations in this brochure show the situation during formwork assembly and are therefore incomplete from the point of view of safety. The instructions for function and use of the f ormwork given in this brochure must be strictly adhered to. If any deviations from these instructions are contemplated, revised static cal culations must be produced for checking. All materials must be inspected before use to ensure that they are in a safe condition. Any components that are damaged, deformed, or weakened due to wear, corrosion or rot must not be used. Use only original Doka components as replacement parts. Combining our formwork systems with those of other manufacturers could be dangerous and therefore requires special checking.
2
The Formwork Formwork Expert Expertss
If required, we can provide trained personnel to give on-site instruction in use of the formwork. We reserve the right to make alterations in t he interests of technical progress. All dimensions given in cm unless otherwise indicated. © by Doka Industrie GmbH, A-3300 Amstetten
999706002 - 11/2004 Ü
User information Doka dam formwork
Contents
Introduction
Page
Introduction .......................................................................... ........................ 2
Product description ......................................................................................4 Dam formwork D15......................................................................................5
Dam formwork D15 K and D15/3.................................................................5 System overview .......................................................................................... 6 Areas of use ..................................................................................................7 Dam formwork D15 K...................................................................................8 Dam formwork D15/3 ...................................................................................9 Dam formwork D22....................................................................................10
Dam formwork D22 K and F.......................................................................10 System overview ........................................................................................ 11 Areas of use ................................................................................................12 Dam formwork D22 - retractable and tiltable...........................................13 Other uses .................................................................................... ............... 14
Starting up...................................................................................................14 Striking, lifting and erecting the formwork ..............................................16 Starter-block formwork .............................................................................. 18 Anchoring on the structure........................................................................20 Platform configurations .............................................................................22 Lining-and-levelling the formwork............................................................24 Moving by crane.........................................................................................26 Possible formwork systems.......................................................................28 Structural design ............................................................................... ........................................................................................ ......... 30 Doka service offerings................................................................................31 Component overview.................................................................................32
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The Formwork Formwork Experts
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User information Doka dam formwork
Introduction
Product description Doka dam formwork - the formwork system for mass concrete structures On mass concrete structures, it is not normally feasible to place form-ties through to the opposing formwork. For this reason, the pressure of the fresh concrete has to be transferred into the previous concrete block. Doka dam formwork ensures that the forces which occur here are transferred safely and reliably. Areas of use: Dams and barrages Run-of-river power stations Navigation locks The formwork and dam scaffold are lifted to the next casting section in one single crane cycle. The dam scaffold can be fitted with various different formwork systems, e.g.: Large-area formwork Top50 Framed formwork Steel formwork
4
The Doka dam formwork system is e xtremely flexible. For this reason, detailed planning and static calculations are required for every single project.
The Formwork Experts
2 systems For optimum adaptation to every construction project, Doka offers two different dam formwork systems, both of which always use the same method of working:
Dam formwork D15 for anchor tensile forces of up to 150 kN
Dam formwork D15 K - for block heights of up to 3.0 m - formwork is tiltable Dam formwork D15/3 - optimised for a block height of 3.0 m - formwork is tiltable, and can also be modified to make it retractable
Dam formwork D22 - for block heights of between 3.0 and 4.0 m for anchor tensile forces of up to 220 kN
Dam formwork D22 K - formwork is tiltable Dam formwork D22 F - formwork is retractable
999706002 - 11/2004 Ü
User information Doka dam formwork
Dam formwork D15
Dam formwork D15 K and D15/3 Doka dam formwork D15 is used for forming block heights of up to 3 m. The Dam scaffold D15 can sustain anchor tensile forces of up to 150 kN . The formwork can be tilted backwards to leave enough space for preparing the suspension points. Doka dam formwork D15 is easy to adapt to sloping wall surfaces and to kinks in the walls.
2 versions Dam formwork D15 K
When tilted backwards, the formwork leaves plenty of space for preparing the suspension points. The platforms are a generous 1.7 m wide, making it easy to operate the spindle strut. Dam formwork D15/3
The Dam formwork D15/3 is the optimum dam scaffold for block heights of 3.0 m. Its 2.2 m wide platforms allow great freedom of movement. The Dam formwork D15/3 can easily be modified to equip it with a travelling unit. This makes the formwork retractable as well.
Product features anchor tensile force: 150 kN easy to anchor formwork elements are freely selectable formwork is tiltable, and can also be modified to make it retractable easy angle adjustment accurate, easy-to-use height adjustment pre-assembly of platform decking is possible generously sized workspace and access passage formwork is pressed onto the previous casting section quickly and securely only a small number of different parts
Dam formwork D15 K
block heights of up to 3.0 m platform width 1.7 m
Dam formwork D15/3
optimised for a block height of 3.0 m platform width 2.2 m
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User information Doka dam formwork
Dam formwork D15
System overview
H
C
D
E
K
A B
Cantilever bracket D15 K (A) The cantilever bracket constitutes the working platform and the climbing scaffold on which the formwork is stood. The pressure of the fresh concrete is transferred by way of the suspension point and the supporting profile. Cantilever bracket D15/3 (B) This cantilever bracket is designed as standard to permit the formwork to be tilted backwards. Retrofitting the Retraction set D15 (K) makes it possible for the formwork to be travelled, as well as just tilted. Vertical waling D15 3.00 m U120 (C) The vertical waling is for holding and adjusting the formwork element, and for transferring the concrete forces into the cantilever bracket. Spindle strut D15 3.00 m (D) This is bolted in between the cantilever bracket and the vertical waling. It has the job of transferring the concrete forces, and is also used for plumbing and striking the formwork elements. Swivel bearing plate D15 or D15 S (E) The swivel bearing plate makes it possible to connect the vertical waling firmly and tightly to the cantilever bracket. Thanks to its articulated joint, the vertical waling can be i nclined forward and back without difficulty. - D15: designed to be used with timber-beam formwork and framed formwork - D15 S: designed to be used with framed formwork and steel formwork Suspended platform D15 / D22 (G) The suspended platform is bolted onto the vertical profile of the cantilever brackets. Screw-on access bracket MF75 (H) The Screw-on access bracket MF75 is a universal working bracket. - can be used as a pouring platform (fastened to the vertical waling) - is integrated in the suspended platform
G
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User information Doka dam formwork
Dam formwork D15
Areas of use The flexibility of Doka dam formwork D15 gives it a very wide spectrum of use. It can master all manner of different wall sequences:
Rear-inclined wall
Straight wall
9706-203-05
Kink in wall 9706-203-01
Forward-inclined wall
A
A 9706-203-02
9706-203-04
A A project-specific check should be made to determine whether a back-stay is needed.
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9706-203-03
N.B.: The max. angle of inclination α will depend on the project, and in particular on the constructional height of the formwork system that is being used.
The Formwork Experts
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User information Doka dam formwork
Dam formwork D15
Dam formwork D15 K Tiltable The formwork can be tilted back to leave plenty of space for preparing the suspension point.
9706-216-01
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User information Doka dam formwork
Dam formwork D15
Dam formwork D15/3 The D15/3 is tiltable as standard. The Dam formwork D15/3 can easily be modified to equip it with a travelling unit. This makes the formwork retractable as well.
Modified to be retractable a
Tiltable
9706-204-02
a ... e.g. with Large-area formwork Top50: max. 45 cm
Travelling unit 9706-204-01
D
C
A
B 9706-223-01
E
B
9706-222-01
C 9706-224-01
Retraction set D15, consisting of: A ... Travelling profile D15 B ... Drive shaft D15 C ... 2 Anti-liftout guards D15, one mounted on eith er side of the Swivel bearing plate D Ratchet MF 3/4" E Swivel bearing plate D15
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User information Doka dam formwork
Dam formwork D22
Dam formwork D22 K and F Doka dam formwork D22 is used for forming block heights of up to 4.0 m . The high load-bearing capacity of the dam scaffold enables this formwork to sustain anchor tensile forces of up to 220 kN .
2 versions Dam formwork D22 K (tiltable) When tilted backwards, the formwork leaves plenty of space for preparing the suspension points. The platforms are a generous 1.9 m wide, making it easy to operate the spindle strut. There i s also enough space for operators to pass behind the spindle strut.
Dam formwork D22 F (retractable) The formwork can be retracted. This makes it easier to clean and maintain the form-ply, to attach fittings and to place reinforcements. The generous platform width of 2.40 m permits very great freedom of movement.
Product features
block heights of up to 4.0 m anchor tensile force: 220 kN easy to anchor easy angle adjustment accurate, easy-to-use height adjustment pre-assembly of platform decking is possible generously sized workspace and access passage formwork is pressed onto the previous casting section quickly and securely only a small number of different parts
Dam formwork D22 K
formwork is tiltable platform width 1.9 m
Dam formwork D22 F
The retractable formwork makes it possible to - clean the formwork even where there is densely placed reinforcement - Reinforcement work is carried out under the protection of the formwork - Mounting and stripping box-outs Platform width 2.4 m
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User information Doka dam formwork
Dam formwork D22
System overview
H
D
E
F
C
A
B
Cantilever bracket D22 K (A) or F (B) The cantilever bracket constitutes the working platform and the climbing scaffold on which the formwork is stood. The pressure of the fresh concrete is transferred by way of the suspension point and the supporting profile. - D22 K: formwork is tiltable - D22 F: formwork is retractable Travelling profile D22 (C) This is used together with the Cantilever bracket D22 F. The travelling profile is bolted onto the swivel bearing plate. Together with the drive pinion of the cantilever bracket, it makes it possible for the entire formwork unit to be moved in and out very smoothly and easily. Vertical waling D22 3.00m U160 or 4.00m (D) The vertical waling is for holding and adjusting the formwork element, and for transferring the concrete forces into the cantilever bracket. Spindle strut D22 3.00m or 4.00m (E) This is bolted in between the cantilever bracket and the vertical waling. It has the job of transferring the concrete forces, and is also used for plumbing and striking the formwork elements. Swivel bearing plate D22 or D22 S (F) The swivel bearing plate makes it possible to connect the vertical waling firmly and tightly to the cantilever bracket. Thanks to its articulated joint, the vertical waling can be inclined forward and back without difficulty. - D22: designed to be used with timber-beam formwork and framed formwork - D22 S: designed to be used with framed formwork and steel formwork Suspended platform D15 / D22 (G) The suspended platform is bolted onto the vertical profile of the cantilever brackets. Screw-on access bracket MF75 (H) The Screw-on access bracket MF75 is a universal working bracket. - can be used as a pouring platform (fastened to the vertical waling) - is integrated in the suspended platform
G
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User information Doka dam formwork
Dam formwork D22
Areas of use The flexibility of Doka dam formwork D22 gives it a very wide spectrum of use. It can master all manner of different wall sequences:
Rear-inclined wall
Straight wall
9706-205-05
Kink in wall
9706-205-01
Forward-inclined wall
A
A
9706-205-02
9706-205-04
A A project-specific check should be made to determine whether a back-stay is needed.
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The Formwork Experts
9706-205-03
N.B.: The max. angle of inclination α will depend on the project, and in particular on the constructional height of the formwork system that i s being used.
999706002 - 11/2004 Ü
User information Doka dam formwork
Dam formwork D22
Dam formwork D22 - retractable and tiltable D22 F - retractable Plenty of space for convenient working. a
9706-206-01
D22 F without travelling unit - tiltable Dam formwork D22 F can also be used without a travelling unit. This leaves a wider working platform.
9706-206-02
a ... e.g. with Large-area formwork Top50: max. 65 cm
The retractable forming unit is easy to oper ate
9706-206-05
D22 K - tiltable
By turning the Ratchet MF 3/4", which is placed against the drive pinion, the operator can move the entire formwork unit back and forward.
C B
A
9706-206-04
A Cantilever bracket D22 F B Travelling profile D22 C Ratchet MF 3/4''
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User information Doka dam formwork
Other uses
Starting up First casting section
Second casting section
The system components of the dam formwork can be used right from the first casting section. ➤ Use the starter-block unit (A) instead of the cantilever bracket. The loads are transferred by way of e.g. pigtail anchors (B) embedded in the base slab.
➤ Suspend
the pre-assembled scaffold unit (C) , consisting of cantilever brackets and platform decking ➤ Hoist the formwork onto the scaffold and fix it in place.
Instead of the starter-block unit it is also possible to use Doka supporting construction frames
a
H
e a
a
C d H
A B
9706-207-01
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c
The Formwork Experts
b
9706-207-02
f
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User information Doka dam formwork
Other uses
Third casting section ➤
Add the suspended platform (D) .
H ... Block height a ... Distance between top of poured concrete and anchoring point b ... Width of starter-block unit + vertical waling c ... Constructional height of formwork d ... Distance between suspension point and pressure strut e ... Formwork overlap f ... Width of bracket
System dimensions [cm] Type of bracket D15 K
D15/3
D22 K
D22 F
H
up to 300
300
300-400
300-400
a b
147
147
168
168
c d
35 depends on the formwork system being used 203 253 253 253
e f
10 180
228
202
250
D
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User information Doka dam formwork
Other uses
Striking, lifting and erecting the formwork The formwork elements, dam scaffolds, pouring platforms and suspended platforms are firmly interconnected. They are lifted and repositioned as a complete unit, in one crane cycle. This reduces the repositioning time, and thus the crane times.
Striking ➤ Remove the Cone screw B 7cm from the position-
ing-point. ➤ Release the pressure wedges. ➤ Detach the formwork element from the concrete by turning the spindle struts, and tilt it back (or retract it). ➤ Tighten the pressure wedges ➤ Screw a Cone screw B 7cm into the Universal climbing cone. The next suspension point is now ready for use. ➤ Remove the Universal climbing cone (working from the suspended platform).
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How to lift Warning! ➤ "Passenger
transportation" is forbidden! ➤ Remove any loose parts from the scaffold and formwork before lifting. ➤ Attach a crane-cable hook to
the suspension bolt of the vertical waling. ➤ Release the connection bolt on the cantilever bracket. ➤ Lift the dam scaffold, together with the formwork element, and suspend it from the prepared suspension points. ➤ Use connection bolts to secure the cantilever bracket against accidental lift-out. ➤ Detach the crane-cable hook.
9706-208-02
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User information Doka dam formwork
Lifting past overhanging surfaces
The (project-specific) overhanging lifting device makes it possible to lift and reposition dam formwork safely where overhanging concrete surfaces are being formed. Variable hoisting points on the overhanging lifting device enable the entire unit to be held at the required angle during lifting.
Other uses
Formwork erection Release the pressure wedges. ➤ Line-and-level the formwork element with the spindle struts and adjusting spindles. ➤ Attach pressure wedges to press the formwork element against the previous casting section. ➤ Fasten positioning anchors to the formwork. ➤
9706-208-04
9706-208-03
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User information Doka dam formwork
Other uses
Starter-block formwork The system components of the dam formwork can be used right from the first casting section. However, the starter-block unit (A) is used here instead of the cantilever bracket. Instead of the starter-block unit it is also possible to use Doka supporting construction frames
Anchoring in the base slab
As a basic rule: The anchoring arrangements for the starter-block formwork are always dimensioned on a project-specific basis.
The loads from the diagonal anchors are transferred via anchor walings (E) . The tie-rod 15.0mm and the super-plate 1 5.0 (F) together secure the anchor waling so that it cannot tilt or slip out of position. For each starter-block unit, two anchors are ea ch placed 15 cm either side of the vertical axis of the starter-block unit. Exception: If the load-bearing capacity is sufficient for 1 anchor per starter-block unit, the anchors on each unit must be placed sy mmetrically.
E
C B
D
F A 9706-220-01
A Starter-block unit B Pigtail anchor C She-bolt D Super-plate E Anchor waling F Tie-rod 15.0mm + Super-plate 15.0
For more information on anchoring in the base slab, see the User Information booklet "Doka supporting construction frames".
C
G
A B
X
Formwork system
9706-207-04
Dimension X
e.g. Large-area formwork Top50
40.7 cm
e.g. framed formwork Framax
30.6 cm
Anchor inclination α 45°
N.B.: The back-stay (G) makes it easier to line-and-level the formwork. A project-specific check must be made to determine whether the back-stay is also required for structural design reasons.
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User information Doka dam formwork
Other uses
Notes
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User information Doka dam formwork
Other uses
Anchoring on the structure Positioning point and suspension point
Anchoring systems
Components:
Load-bearing capacity of the Doka anchoring systems
The decisive criterion for the choice of anchoring system is the tensile forces that will occur.
"Form-tie system"
Max. load to DIN 18216
20.0
150 kN
Max. load, allowing a 1.6 : 1 factor of safety against failure 220 kN
26.5
250 kN
350 kN
F
D
E
E A C B
Important note:
ONLY use "Form-tie system 20.0" or "Formtie system 26.5"! Due to the high loads imposed on the suspension points by dam formworks, the "Form-tie system 15.0" is not suitable!
Preparing the positioning point and suspension point
TR565-200-01
A Universal climbing cone B Sealing sleeve K (expendable anchoring component) C Cone screw B 7cm D Pigtail anchor (expendable anchoring component) E Depth mark F Stop-anchor
Both the positioning points and the suspension points are prepared using one single type of cone, the Universal climbing cone (A) . The Cone screw B 7cm (C) also fulfils 2 functions: On the positioning point - for fastening the Universal climbing cone. On the suspension point - as a safe means of suspending the cantilever bracket. Preferably, pigtail anchors (D) are used, or - depending on the characteristics of the structure stop-anchors (F) . The necessary length of the pigtail anchors is determined in trials conducted on the site (concrete strength, type of concrete, etc.).
Warning! - against not screwing the pigtail anchor or stop anchor far enough into the Universal climbing cone. This may subsequently lead to reduced load-bearing capacity and to the failure of the suspension point - resulting in injury and damage. ➤ Always screw in components until they fully engage (i.e. up to the depth mark). Caution! ➤ For the positioning point and
suspension point, ONLY use Cone screws B 7 cm (head of screw is red, to indicate its high load-bearing capacity)! ➤ The axis of the cantilever bracket and the axis of the Universal climbing cone must align - maximum angle-deviation 2 °. ➤ Never weld or heat tie-rods - risk of fracture! ➤ Every time the Universal climbing cones are used, fit them with new sealing sleeves first. Tools needed: Reversible ratchet 3/4" Spanner for Universal climbing cone 15.0/20.0 Box nut 50 (for Cone screw B 7cm)
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User information Doka dam formwork
Other uses
Positioning point
Before pouring
with hole drilled through the form-ply ➤ Fasten a packing plate (G) (e.g. Dokaplex 15 mm) to the form-ply (position as per project plan). ➤ Drill a diam. 31 mm hole in the form-ply (position as shown in the project plan). ➤ Push the Cone screw B 7cm (C) through the formply, screw it into the Universal climbing cone (A) and tighten it firmly. ➤ Screw the Pigtail anchor (D) into the Universal climbing cone (A) , until it engages (up to the depth mark (E) ).
➤ Check
The axis of the cantilever bracket and the axis of the Universal climbing cone must align - maximum angle-deviation 2°. The depth mark on the pigtail anchor or stop-anchor must be right up against the Universal climbing cone = must be screwed in to the full depth. The pigtail anchor must be facing downwards
all positioning points and suspension points once again.
Repeat use
Universal climbing cones are supplied with Sealing sleeves K (B) . Every time the Universal climbing cones are used again, fit them with new sealing sleeves first! Suspension point ➤ Screw
the Cone screw B 7cm (C) into the Universal climbing cone (A) until it engages, and tighten it firmly. Ensure that control-dimension b = 30 mm!
b
C
a
A 9706-209-03
D
E
A B G C
Concrete strength on initial loading: min. 10 N/mm2 (100 kg/cm2) The required concrete strength can be determined with greater accuracy by on-site trials.
9706-209-01
a ... 35 to 45 mm
N.B.: Universal climbing cones are supplied with Sealing sleeves K (B) . Every time the Universal climbing cones are used again, fit them with new sealing sleeves first!
Important note:
The cone-fixing method that involves drilling through the form-ply is the one that is most suitable for the working conditions encountered on dam construction sites. If the large size of the drilled hole makes it impracticable to use the Cone screw B 7cm for the positioning-point, (e.g. if the suspension points are often not in the same position as in the previous casting section), then the Positioning clamp M30 must be used (hole diam. = 9 mm). The cone should only be fixed with the Positioning disc M30 in exceptional situations! However, in this case additional precautions must be taken to ensure that it is not dislodged from its exact installation location during pouring!
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Suspending and securing the cantilever bracket ➤ Suspend the cantilever bracket (H) from the Cone
screw B 7cm (C) of the finished suspension point. ➤ Push the connection bolt (I) into the cantilever bracket, at 90° to the platform decking, until it engages. ➤ Turn the connection bolt (I) down onto the platform deck. The cantilever bracket is now secured against accidental lift-out. The connection bolt must be in the horizontal! C
9706-209-05
H
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User information Doka dam formwork
Other uses
Platform configurations The modular "building-set" principle also gives wide scope for different ways of combining and using platforms. The pouring platform and suspended platform are both assembled using the same screwon access bracket.
Pouring platform For reinforcement and concrete-placing work. The Screw-on access bracket MF75 is attached directly to the vertical waling. Platform width = 75 cm.
Suspended platform For removing the Cone screw B 7cm, for grouting the cone holes and for doing finishing-work on the concrete. The Screw-on access bracket MF75 is also used here, in the same way as on t he pouring platform. It is already integrated in the Suspended platform D15/D22. Platform width = 75 cm.
9706-200-02
Working platform For manipulating the formwork elements. 9706-200-04
Adjusting the inclination / widening the platform Using the Swivel plate MF, the inclination of the platforms can be incrementally adjusted, and the working platform can be widened.
30° 10° 10° 20° 0°
30° 20°
9706-219-01
e.g. on working platforms:
9706-200-03
9706-218-02
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User information Doka dam formwork
Other uses
Passage units (manholes) Passage units provide access to (and between) various platform levels, for instance between the pouring platforms, main platforms and suspended platforms.
Put up safety netting in the ladder and manhole zone, as required by the applicable regulations.
Passage units are installed in the platform decking. Clear opening in passage unit: 600x600 mm Position the passage units so that the ladders can be stood on alternate sides.
A
9706-217-01
A Passage unit
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User information Doka dam formwork
Other uses
Lining-and-levelling the formwork Length adjustment
Adjusting the formwork The formwork elements can be adjusted in the vertical and moved and/or tilted to either side, enabling them to be adjusted in relation both t o one another and to the structure.
➤ Push
the formwork to either side.
To make it possible to compensate for any deformations during pouring, the formwork should be adjusted with a forward inclination. The extent of this forward inclination (see project plan) will depend on the following factors: Block height Pressure of the fresh concrete Influence width per parallel frame section
Tools needed: Hammer Reversible ratchet 1/2" Box nut 24 and Fork wrench 22/24 (for the threaded joins on the adjusting spindles)
9706-215-01
Height and angle adjustment The adjusting spindles (C) permit a vertical adjustment range of approx. 150 mm. Also, the adjusting spindles can be re-mounted in different holes in the grid of fixing holes on the vertical waling (D) .
Preparing the adjusting operation ➤ Release
the pressure wedge (A) . D
C
A 9706-210-02
Height adjustment 9706-200-05
➤ Turn
both adjusting spindles.
➤ Detach
the formwork from the concrete. ➤ Loosen the Waling-to-bracket holder D22 (B) with a blow of the hammer.
B 9706-210-01
9706-215-03
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User information Doka dam formwork
Side angle adjustment ➤ Only
turn one adjusting spindle.
Other uses
Press the formwork to the concrete For clean, exact concrete surfaces and transitions, the formwork element must be pressed very tightly against the previous section. This can be done quickly and easily with the pressure wedge of the swivel bearing plate. ➤ After adjusting the formwork elements, tighten the pressure wedges (A) . This presses the formwork element up against the previously cast section.
9706-215-02
A
Ending the adjusting operation ➤ Tightly
clamp the Waling-to-bracket holders D22
again.
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User information Doka dam formwork
Other uses
Moving by crane
Important note:
Observe all regulations applying to the operation of cranes where higher wind speeds are experienced. Only fasten the crane-cable hook to the suspension bolt (A) of the vertical waling. The crane-hoisting lugs on the formwork elements must not be used for lifting the dam formwork unit. Angle of inclination β: max. 30° Brace the vertical waling sufficiently against oblique pull (B) . Minimum tightening torque of the couplers (C) as per applicable regulations. Bring the travelling unit as close to the centre-of-gravity position as possible, and secure the Swivel bearing plate with the Swivel bolts. If lifting past sloping walls, fasten an overhanging lifting device to the vertical waling. Where the formwork is inclined forward, check whether a tension guy-bracing chain is needed. When a single dam formwork unit is l ifted, two open ends are left in the formwork system. These must be secured by mounting side protection (e.g. Handrail clamp S).
A
B
C
Warning! ➤ "Passenger
transportation" is forbidden! ➤ Remove any loose parts from the scaffold and formwork before lifting. Length of chain = at least the space between the slinging points This automatically leads to the required angle of inclinationβ.
9706-221-01
β ... max. 30 ° A Suspension bolt B Bracing against oblique pull (e.g. scaffolding tube) C Screw-on couplers
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User information Doka dam formwork
Other uses
Notes
999706002 - 11/2004 Ü
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User information Doka dam formwork
Other uses
Possible formwork systems Timber-beam formwork
Framed formwork
e.g. Large-area formwork Top50 With timber-beam formwork, the Swivel bearing plate D15 or D22 (D) must be used.
e.g. framed formwork Framax In the case of framed formwork, the choice of swivel bearing plate (D) must be reviewed on a projectspecific basis.
A A
D D
9706-211-01 9706-211-02
Attaching the formwork: ➤ Fasten the formwork element (A) to the vertical waling (C) with the Waling-to-bracket holder D22 (B) .
4 0 1 1 2 6 0 7 9
Attaching the formwork: ➤ Fasten the Steel waling WS10 Top50 (G) to the framed formwork using the Framax/supporting construction frame bolt 36cm (E) and the Superplate 15.0 (F) .
B
E
C
For more information, see the User Information booklet "Doka-timber-beam formwork Top50".
5 0 1 1 2 6 0 7 9
F G
➤ Fasten
the formwork element (A) to the vertical waling (C) with the Waling-to-bracket holder D22 (B) .
B 7 0 1 1 2 6 0 7 9
C
For more information, see the User Information booklet "Doka framed formwork Framax".
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User information Doka dam formwork
Other uses
Steel formwork Steel formwork must always be planned and dimensioned on a project-specific basis: It must be possible to attach waling-to-bracket holders It must be possible to support the adjusting spindles In the case of steel formwork, the choice of swivel bearing plate (D) must be reviewed on a projectspecific basis.
A
D
9706-211-03
Attaching the formwork: ➤ Fasten the formwork element (A) to the vertical waling (C) with the Waling-to-bracket holder D22 (B) .
6 0 1 1 2 6 0 7 9
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B
C
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User information Doka dam formwork
Other uses
Structural design The cantilever centres are computed from various different influences: Pressure of the fresh concrete Block height Angle of inclination of formwork Wind loads
Allow for the following when performing the structural design calculations:
The formwork used must be dimensioned as required by the cantilever centres (e.g. the correct steel walings must be selected). Max. live load of the working platform: 1.5 kN/m2 (incl. loads occurring in the course of pouring)
This is why dam formwork must always be dimensioned on a project-specific basis.
When determining the pressure of the fresh concrete, allow for the following: Additional loads from concrete spreading devices (e.g. caterpillar concrete spreader). Slow setting of the concrete (fly-ash)) Low concrete temperature (cooled concrete) Low proportion of cement in the concrete
Determining the cantilever centres for perpendicular formwork* * Formwork and cantilever bracket perpendicular and in one plane (no kink in wall)
Dam formwork D15 3.0
9706-100 2.9
] 2.8 m 2.7 [ t h 2.6 g i e 2.5 h g 2.4 n i r 2.3 u o P 2.2
25 kN/m² 40 kN/m² 30 kN/m² 45 kN/m² 35 kN/m² 50 kN/m²
2.1 2.0 0.5
1.0
1.5
2.0
2.5
Influence width per bracket [m]
Dam formwork D15/3 3.5
9706-101 3.4
] 3.3 m 3.2 [ t h 3.1 g i e 3.0 h g 2.9 n i r 2.8 u o 2.7 P
25 kN/m²
30 kN/m² 40 kN/m² 35 kN/m² 45 kN/m²
50 kN/m²
2.6 2.5 0.5
1.0
1.5
2.0
2.5
Influence width per bracket [m]
Dam formwork D22 4.0
9706-102 3.9
] 3.8 m 3.7 [ t h 3.6 g i e 3.5 h g 3.4 n i r 3.3 u o P 3.2
25 kN/m² 40 kN/m² 30 kN/m² 45 kN/m² 35 kN/m² 50 kN/m²
3.1 3.0 0.5
1.0
1.5
2.0
2.5
Influence width per bracket [m]
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User information Doka dam formwork
Other uses
Doka service offerings Doka "Ready-to-Use" Service
Doka customer training
Ready-to-use formworks - for even the most unusual assignments
Formwork training pays
Whatever it is you need to construct from concrete, the Doka Ready-to-Use Service can put together the right formwork for you - quickly, and in guaranteed Doka quality. The professionals from the Doka Ready-to-Use Service plan and make ready-to-use standard and custom formworks exactly to your specifications. By delivering "just-in-time", straight to your site, we save space on your site and reduce the amount of planning and assembly work that you have to do.
Pre-assembled platform decking reduces assembly times The pre-assembled platform decking has many advantages: Pre-assembly in the factory or at the depot helps to cut costs. Operations scheduling ensures efficient assembly. High precision ensured by use of assembly bench. No space problems. No need for on-site improvisation. Reduces assembly times on the site. Cantilever brackets are quickly ready for use. Low transport volume.
999706002 - 11/2004 Ü
Forming operations account for the lion ’s share of labour costs on concrete construction sites. Modern formwork equipment helps to rationalise operations. By improving the overall construction sequence at the same time, however, further very worthwhile gains in efficiency can be achieved. This requires not only better equipment, but also greater skill in making optimum use of this equipment. Doka can help here, with its specialist training programme - to help each and every member of the team do his bit towards boosting efficiency and lowering costs. Doka customer training events also look at the formwork equipment and handling methods that are needed in order to achieve optimum safety knowledge and awareness which can only enhance workplace safety on the site. You’ll find the Doka training programme well worth looking into. Your nearest Doka branch will be pleased to tell you more about Doka's various training offerings.
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User information Doka dam formwork
Component overview [kg] Article n°
[kg] Article n°
Doka formwork Dam Climbing System
Cantilever bracket D15 K
136.4 580630000 Painted blue
Vertical waling D15 3.00m U120 Vertical waling D22 3.00m U160 Vertical waling D22 4.00m U160
Width: 166 cm
Sperrenriegel D
Sperrenkonsole D15 K
Painted blue
Delivery condition: railing included
Cantilever bracket D15/3
87.6 580632000 115.5 580613000 154.5 580615000
170.0 580631000
Sperrenkonsole D15/3 Painted blue
Spindle strut D15 3.00m
Width: 215 cm
38.0 580633000
Spindelstrebe D15 3,00m
Delivery condition: railing included
Painted blue Length: 211 - 252 cm
Spindle strut D22 3.00m Cantilever bracket D22 K
190.0 580610000
52.6 580616000
Spindelstrebe D22 3,00m Painted blue
Sperrenkonsole D22 K
Length: 215 - 258 cm
Painted blue Width: 189 cm Delivery condition: railing included
Spindle strut D22 4.00m
60.0 580617000
Spindelstrebe D22 4,00m Painted blue Length: 258 - 301 cm
Cantilever bracket D22 F
209.6 580611000
Sperrenkonsole D22 F Painted blue Width: 237 cm Delivery condition: railing included
Swivel bearing plate D15
20.8 580634000
Gelenkaufsatz D15 Painted blue Length: 48 cm Height: 22 cm
Swivel bearing plate D15 S
18.5 580635000
Gelenkaufsatz D15 S Painted blue Length: 42 cm Height: 22 cm
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User information Doka dam formwork
Component overview [kg] Article n°
Swivel bearing plate D22
30.0 580618000
Gelenkaufsatz D22
[kg] Article n° Starter block unit D22
80.0 580622000
Grundblockriegel D22 Painted blue
Painted blue
Length: 52 cm
Length: 147 cm
Height: 27 cm
Swivel bearing plate D22 S
26.0 580624000
Gelenkaufsatz D22 S Painted blue Length: 45 cm
Anchor waling 1.95m Anchor waling 2.95m
Height: 27 cm
Ankerriegel
76.3 580545000 110.0 580546000 Painted blue
Suspended platform D15/D22
47.6 580620000
Hängebühne D15/D22 consisting of:
(A) Suspension profile D15/D22
28.6 580621000
Height: 260 cm
(B) Screw-on access bracket MF75
19.0 580669000
Galvanised Length: 113 cm Height: 152 cm
Travelling profile D22
20.0 580619000
Fahrprofil D22 Galvanised Length: 114 cm
Galvanised
Retraction set D15
21.0 580637000
Rückfahrset D15 Galvanised Length: 114 cm
Waling-to-bracket holder D22
2.7 580623000
Keilriegelhalter D22 Galvanised Length: 31 cm Height: 31 cm
Screw-on access bracket MF75
19.0 580669000
Anschraubbühne MF75 Galvanised Length: 113 cm
Handrail clamp S
Height: 152 cm
11.5 580470000
Schutzgeländerzwinge S Galvanised Height: 123 - 171 cm
Swivel plate MF
4.5 580672000
Schwenkplatte MF Galvanised Length: 29 cm Height: 20 cm
Passage
37.0 580832000
Durchstieg Galvanised Length: 134 cm Width: 72 cm
Starter block unit D15
48.2 580636000
Grundblockriegel D15
Scaffold tube 48.3mm 1.00m Scaffold tube 48.3mm 1.50m Scaffold tube 48.3mm 2.00m Scaffold tube 48.3mm 2.50m Scaffold tube 48.3mm 3.00m Scaffold tube 48.3mm 3.50m Scaffold tube 48.3mm 4.00m Scaffold tube 48.3mm 4.50m Scaffold tube 48.3mm 5.00m Scaffold tube 48.3mm 5.50m Scaffold tube 48.3mm 6.00m Scaffold tube 48.3mm .....m
4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 4.0
682014000 682015000 682016000 682017000 682018000 682019000 682021000 682022000 682023000 682024000 682025000 682001000
Gerüstrohr 48,3mm Galvanised
Painted blue Length: 145 cm
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User information Doka dam formwork
Component overview [kg] Article n° Screw-on coupler 48mm 50 Screw-on coupler 48mm 95
0.84 682002000 0.71 586013000
Anschraubkupplung Galvanised
[kg] Article n° Additional tools MF (A) Reversible ratchet 3/4"
Width-across: 22 mm
4.1 580682000
Zusatzwerkzeuge MF consisting of:
1.5 580894000
Galvanised Length: 50 cm
(B) Box nut 17 1/2'' (C) Box nut 50
0.07 580685000 0.81 581449000
Galvanised
(D) Extension 20cm 3/4 ''
0.68 580683000
Galvanised
Swivel coupler 48mm
1.5 582560000
Drehkupplung 48mm
0.18 580684000 0.90 581448000
Galvanised Length: 9 cm Width-across: 50 mm
Galvanised Width-across: 22 mm
Ratchet MF 3/4"
(E) Transition piece A 1/2''x3/4'' (F) Universal cone spanner 15.0/20.0
3.9 580679000
Antriebsknarre MF 3/4" Galvanised Length: 108 cm
Tool box GF
6.5 580390000
GF-Werkzeugbox included in scope of supply:
(A) Reversible ratchet 1/2"
0.73 580580000
Galvanised Length: 30 cm
(B) (C) (D) (E) (F) (G) (H) (I)
Fork wrench 13/17 Fork wrench 22/24 Fork wrench 30/32 Ring spanner 17/19 Extension 11cm Extension 22cm Universal joint coupling Nut for box spanner 19
0.08 0.22 0.80 0.27 0.20 0.31 0.16 0.16
580577000 580587000 580897000 580590000 580581000 580582000 580583000 580598000
Galvanised
(J) Box nut 13
0.006 580576000
Galvanised
(K) Box nut 24 (L) Box nut 30 1/2"
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0.12 580584000 0.20 580575000
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User information Doka dam formwork
Component overview [kg] Article n°
Form tie system 20.0
[kg] Article n°
Form tie system 26.5
Universal climbing cone 20.0
1.2 581442000
Universal-Kletterkonus 20,0
Universal climbing cone 26.5
1.1 581987000
Universal-Kletterkonus 26,5 Galvanised
Galvanised
Length: 13 cm
Length: 15 cm
Diameter: 5 cm
Diameter: 5 cm
Packed in units of 35
Tool: Spanner for universal climbing cone 15.0/20.0
Tool: Spanner for universal climbing cone 15.0/20.0
Sealing sleeve K 26.5 Sealing sleeve K 20.0
0.03 581443000
0.03 581998000
Dichtungshülse K 26,5 Violet
Dichtungshülse K 20,0 Brown
Length: 12 cm
Length: 12 cm
Diameter: 6 cm
Diameter: 6 cm Packed in units of 200
Pigtail anchor 26.5 Cone screw B 7cm
0.86 581444000
Konusschraube B 7cm
3.6 581900000
Wellenanker 26,5 Non-treated
Dacromete coated
Length: 80 cm
Length: 10 cm
Never weld or heat tie-rods - risk of fracture!
Diameter: 7 cm Width-across: 50 mm
Pigtail anchor 20.0
2.0 581450000
Wellenanker 20,0 Non-treated Length: 76 cm
Never weld or heat tie-rods - risk of fracture!
Stop anchor 20.0 22cm
1.9 581452000
Sperranker 20,0 22cm Non-treated
Never weld or heat tie-rods - risk of fracture! Follow the fitting instructions! Arrange extra reinforcement steel as per statical requirement.
Stop anchor 20.0 45cm
2.3 581453000
Sperranker 20,0 45cm Non-treated
Never weld or heat tie-rods - risk of fracture! Follow the fitting instructions! Arrange extra reinforcement steel as per statical requirement.
Positioning clamp M30
0.19 581833000
Vorlaufklemme M30 Galvanised Diameter: 4 cm Packed in units of 40
Positioning disk M30
0.25 581975000
Vorlaufscheibe M30 Galvanised Diameter: 9 cm Packed in units of 70
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