GB Doka circular formwork H20 - Home - FDJ … · as a generic method statement or incorporated ... the practical circu-System overview lar formwork for curved walls Doka circular

The Formwork Experts

11/2007 NK

GB999705002

User information

Doka circular formwork H 20

9705-201-01

2 999705002 - 11/2007 NK

User information Doka circular formwork H 20


Introduction

© by Doka Industrie GmbH, A-3300 Amstetten

3999705002 - 11/2007 NK

Contents Page

User information Doka circular formwork H 20 Introduction


General instructions for compliant utilisation............................................ 4Elementary safety warnings ........................................................................ 5Product description ...................................................................................... 6System grid................................................................................................... 7Vertical stacking............................................................................................ 8Inter-panel connections..............................................................................10Bending instructions ..................................................................................11Plumbing accessories.................................................................................12Pouring platforms with single brackets ....................................................16Ladder system.............................................................................................18Resetting .....................................................................................................22Structural design ........................................................................................23

Component overview.................................................................................24

4 999705002 - 11/2007 NK



Introduction

General instructions for compliant utilisation

● This User Information booklet (Method State-ment) is aimed at everyone who will be working with the Doka product or system it describes. It contains information on how to set up this sys-tem, and on correct, compliant utilisation of the system.This User Information booklet can also be used as a generic method statement or incorporated with a site-specific method statement.

● Doka products are ONLY to be used in accord-ance with the Doka User Information booklets or other technical documentation provided by Doka.

● The functional/technical instructions, safety warnings and loading data must all be strictly observed and complied with. Failure to do so can cause accidents and severe (even life-threatening) damage to health, as well as very great material damage.

● If any deviation from these instructions is con-templated, or any application which goes beyond those described here, then revised static calculations must be produced for check-ing, as well as supplementary assembly instructions.

● The customer is to ensure that the User Infor-mation booklet (Method Statement) provided by Doka is available to all users, and that they have been made aware of it and have easy access to it at the usage location.

● Always observe all industrial safety regulations and other safety rules applying to the applica-tion and utilisation of our products in the coun-try and/or region in which you are operating.

● Many of the illustrations in this booklet show the situation during formwork assembly and are therefore not always complete from the safety point of view.

● The equipment/system must be inspected by the customer before use, to ensure that it is in suitable condition. Steps must be taken to rule out the use of any components that are dam-aged, deformed, or weakened due to wear, cor-rosion or rot.

● Only original Doka components may be used as spare parts.

● Combining our formwork systems with those of other manufacturers could be dangerous, risking damage to both health and property. If you intend to combine different systems, please contact Doka for advice first.

● The customer must ensure that this product is erected and dismantled, reset and generally used for its intended purpose under the direc-tion and supervision of suitably skilled persons with the authority to issue instructions.

● All persons working with the product described herein must be familiar with the contents of this manual and with all the safety instructions it contains.

● Persons who are incapable of reading and understanding this booklet, or who can do so only with difficulty, must be instructed and trained by the customer.

User information Doka circular formwork H 20 Introduction

5999705002 - 11/2007 NK The Formwork Experts

Elementary safety warnings

Symbols usedThe following symbols are used in this booklet:

MiscellaneousWe reserve the right to make alterations in the inter-ests of technical progress.Unless otherwise stated, all dimensions are given in cm.

● Doka products and systems must be set up in such a way that all loads acting upon them are safely transferred!

● The stability of all components and units must be ensured during all phases of the construc-tion work!

● Provide safe workplaces for those using the formwork (e.g. for when it is being erected/dis-mantled, modified or repositioned etc). It must be possible to get to and from these workplaces via safe access routes!

● Do not exceed the permitted fresh-concrete pressures. Excessively high pouring rates lead to formwork overload, cause greater deflection and risk causing breakage.

● Do not strike the formwork until the concrete has reached sufficient strength and the person in charge has given the order for the formwork to be struck!

● When striking 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 striking 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!

● Observe all regulations applying to the hand-ling of formwork and scaffolding. In addition, the Doka slinging means must be used - this is a mandatory requirement.

● Remove any loose parts or fix them in place so that they cannot be dislodged or fall free!

● All connections must be checked regularly to ensure that they still fit properly and are func-tioning correctly.It is very important to check all screw-type con-nections and wedge-clamped joins whenever the construction operations require (particu-larly after exceptional events such as storms), and to tighten them if necessary.

● All components must be stored safely, follow-ing all the special Doka instructions given in the relevant sections of this User Information book-let!

● Further safety instructions, especially warn-ings, will be found in the individual sections of this document!

● The faulty utilisations shown in the various sections of this booklet are only a selection of examples taken from our many years' experi-ence in the field.

Important note

Failure to observe this may lead to malfunction or damage.

Caution / warning / danger

Failure to observe this may lead to material damage, and to injury to health which may range up to the severe or even life-threatening.

Instruction

This symbol indicates that actions need to be taken 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.

☞

6 999705002 - 11/2007 NK



Product description

Further product features:

● Continuous adaptation to different radii by means of spindles.

● Only 2 widths of element:- 2.40 m inside element- 2.50 m outside element

● Ideal height grid provided by the element heights of:- 0.70 m- 1.20 m- 2.40 m- 3.00 m- 3.60 m- 4.80 m

● Only one type of connector needed:- Adjustable clamp 10cm

● Heavy-duty, flexible form-ply:- Dokaplex 21mm

● Smooth, constant curvature ensured by uniform form-ply support.

● Extra-rigid connection between connecting pro-file and form-ply ensures perfect curvature in the edge zone of the elements as well.

● Low form-tie ratio:- only 1 form-tie per 1.5 m2 area to be formed

System overviewDoka circular formwork H 20 – the practical circu-lar formwork for curved walls

Doka circular formwork H 20 uses special spindles to curve the form-ply into a "genuine" arced shape.This adjusting system permits continuous setting of the radii. Circular formwork H 20 is designed for a standardised minimum radius of 3.50 m (in spe-cial cases, a radius of 2.50 m is possible).The circular formwork elements are supplied to the site ready-assembled.The use of proven basic components from the Doka large-area formwork Top 50 makes this formwork system both robust and adaptable.Special connecting profiles allow its components to be combined with Framax Xlife, Alu-Framax Xlife, Frameco and Column formwork RS.

Permitted fresh-concrete pressure: 60 kN/m2

A Special spindle:For setting the element-bending radius.

B Connecting profile:Connection piece to further circular formwork elements or to Framax Xlife or Alu-Framax Xlife framed formwork pan-els.

C Steel waling RD:For distributing the form-tie forces.

D Lifting-bracket:For lifting and resetting the element.

E Bending instructions:Information on how to adjust the Circular formwork element H20 correctly.

9705

-200

-01

A

B

C

D

E



System grid

Panel widthsThe 2.40m wide elements are used for the inside formwork, and the 2.50m wide ones for the outside formwork. This speeds up work by making it easy to see which element belongs where.

Circular formwork element H20 2.40m

(for inside use)

Circular formwork element H20 2.50m

(for outside use)

Panel heights

Note:

Element height 4.80m not available in Austria!

A Dokaplex 21mm

B Doka beam H20

C Turnbuckle C

D Turnbuckle D

E Timber-beam seat 24cm

F Steel waling RD 0.75m

G Connecting profile (left)

H Connecting profile (right)

I Lifting-bracket

A Dokaplex 21mm

B Doka beam H20

C Turnbuckle A

D Turnbuckle C

E Timber-beam seat 24cm

F Steel waling RD 0.75m

G Connecting profile (left)

H Connecting profile (right)

I Lifting-bracket

9705-212-01

AB

CCD E FG HI

240.061.5 117.0 61.5

32.0

9705-213-01

AB

CCD E FG HI

250.064.0 122.0 64.0

32.0

0.70 m 1.20 m 2.40 m

3.00 m 3.60 m 4.80 m

9705-214-01

70.0

52.0

18.0

120.

0

52.0

68.0

52.0

240.

0

120.

068

.0

52.0

300.

0

148.

010

0.0

52.0

360.

0

68.0

120.

012

0.0

52.0

480.

0

68.0

120.

012

0.0

120.

0

The Formwork Experts8 999705002 - 11/2007 NK


Vertical stacking

Possible height gradations Note:

Element height 4.80m not available in Austria!

1.20 m 1.90 m 2.40 m 3.00 m 3.60 m

1.20 m + 0.70 m

4.20 m 4.80 m 5.40 m 6.00 m 6.60 m 7.20 m

1.20 m + 3.00 m In Austria:3.60 m + 1.20 m 2.40 m + 3.00 m 3.60 m + 2.40 m 3.60 m + 3.00 m

4.80 m + 2.40 mIn Austria:

3.60 m + 2.40 m + 1.20 m

120.

0

52.0

68.0

120.

0190.

0

70.0

52.0

120.

018

.0

52.0

120.

0

240.

0

68.0

52.0

148.

010

0.0

300.

0

52.0

120.

012

0.0

68.0

360.

0

52.0

120.

014

8.0

100.

0

120.

030

0.0

420.

0

52.0

120.

012

0.0

120.

068

.0

480.

0

52.0

120.

012

0.0

148.

010

0.0

540.

0

300.

024

0.0

52.0

120.

012

0.0

120.

012

0.0

68.0

600.

0

240.

036

0.0

52.0

120.

012

0.0

120.

014

8.0

100.

0

660.

0

300.

036

0.0

52.0

120.

012

0.0

120.

012

0.0

120.

068

.0

240.

048

0.0

720.

0



Vertical stacking using Stacking

plate for circular formwork H20

The ideal height-grid of the elements, and the sys-tematic spacing of the form-ties, make it possible to arrange many different height-combinations oppo-site one another.

Note:

A 3.00 m high element may only be placed opposite another 3.00 m high element.Dismount the Lifting-bracket for Circular formwork H20 from the element joint before vertically stack-ing the elements.

Practical example

Mounting the stacking plate

Plan view

The necessary nuts & bolts etc. are included with the stacking plate.

Rules for vertical stacking of panels

● Always position 0.70m high elements at the top.

● In stacking configurations, 3.00m high ele-ments are only allowed to have other elements placed beneath them, never on top of them! In other words, these elements must always be on top.

● To prolong their service lives, the 3.60m and 4.80m high Circular formwork elements H20 are equipped with protective caps. For this reason, they can only be used at the bottom of a stack.

A Circular formwork element H20 2.40x2.40m

B Circular formwork element H20 2.40x1.20m

C Circular formwork element H20 2.50x3.60m

D Stacking plate for circular formwork H20

9705-209-01

A

B

DC

☞ ● Before vertically stacking elements, always turn their spindles to make them straight again.

● Attach one stacking plate for every beam-join.

A Stacking plate

B Hexagon screw M16x70 (width-across 24 mm)

C Spring washer A16

9705-208-01

22.4

10.0

22.4

62.4

B C

A

A



Inter-element connections● As a rule, 2.50 m wide elements are used for the

outside formwork.● For the inside formwork, 2.40 m wide elements

are used.● The inter-element connections are made using

Adjustable clamps 10cm. Attach at least 1 clamp for every metre that the element is high!- Do not oil or grease wedge-clamped joins.

● Place the inside and outside formworks opposite one another.Bridge any closure gaps between the elements using fitting-timbers (a=122 mm), e.g. Framax fitting-timbers 2.70m or 3.30m. See the closure diagram!

● Tie using a Tie-rod 15.0 and a Super-plate 15.0. Minimum length of the tie-rods: Wall thickness + 1.00 m

Practical example

Inside radius of the structure: 10.00 mWall thickness: 0.30 m

Close-up

Combining with Framax/Alu-

Framax Xlife framed formworkThe connecting profiles on the Circular formwork elements H20 make it possible to connect Framax/Alu-Framax Xlife framed formwork panels directly to the elements.

9705-211-01

A Outside formwork

B Inside formwork

C Adjustable clamp 10cm

D Fitting-timber (a=122 mm)

E Tie-rod 15.0 and Super-plate 15.0

9705-211-01

A

B

D

C

E

a



Bending instructionsAs-delivered condition: Element = straight

➤ Put up the circular formwork element and secure it so that it cannot topple over.

➤ Place tall elements on their sides, as shown in the illustration, so that the spindle-levels are in the vertical. In this way, all the spindles are within easy reach.

➤ Uniformly pre-tension all the spindles by hand.

➤ Prepare the template.

Adjusting

➤ Adjust the spindles using the Wrench for Circular formwork H20 (E) .

N° of turns of the spindle

➤ Repeat this procedure until the form-ply sits closely and evenly against the template. To return the elements to the "straight" position, simply repeat the spindling procedure in reverse.

➤ Once you have adjusted the circular formwork elements to the desired radius, set them up next to one another in the same way as straight ele-ments, link them with Adjustable clamps 10cm, and then place the form-ties.

Storage

➤ Straighten out the elements again before storing them for any length of time.

☞ ➤ Smallest bending radius: 3.50 m

D Outside element pushed apart

Z Inside element pulled together

There is an indicator on the spindles to show you which way to turn them ( (Z) for pulling together, (D) for pushing apart).

The formwork is easier to set up if there is an in-line connection to an existing wall.

9705-217-01

9705-202-01

D

Z

D

Z

9705-001

☞ ➤ Only adjust the element by means of the template.

➤ Make sure that you turn each spindle exactly as much as the ones above and below it.

➤ Check the radius with the template before every pour.

D Outside element pushed apart

Z Inside element pulled together

(C) (B) (A) (B) (C)

1 — — 11/2 — —2 — 11/2 — 11/2 —3 1/2 — — — 1/2

If spindling has gone badly wrong:

➤ Straighten out the element and start all over again!

9705-203-01

D

Z

E

9705-204-01

AB B

C C



Plumbing accessoriesPanel struts, Eurex 60 550 and Adjustable plumbing struts secure the elements against wind loads, and make it easier to plumb and align the formwork.

Permitted spacings [m] of the plumbing accesso-ries:

The values given here apply up to a height of 8 m above the sur-rounding ground. For heights of more than 8 m, the correct spac-ing of the props must be calculated as required by the higher wind loads.

Note:

Every gang-form must be supported by at least 2 panel struts.

Example: For a formwork height of 7.20 m, the fol-lowing items are required for each element:● 1 Panel strut 540● 1 Eurex 60 550 / Adjustable plumbing strut

Fixing the struts to the formwork

1) Use a panel strut without a prop head, or remove the Prop head (A) from the panel strut.

2) Mount the Plumbing strut fixing part RD (B) to the panel strut, and secure it with a linch pin.

3) Bolt the panel strut into the support mount (C) of the circular formwork element, and secure it with a linch pin.

Fixing to the ground➤ Anchor the plumbing accessories in such a way

as to resist tensile and compressive forces!

Drilled holes in the footplates

a ... ø 26 mm b ... ø18 mm c ... ø 28 mm d ... ø 18 mm e ... Slotted hole ø 18x38 mm f ... ø 35 mm

☞ Important note:

The formwork panels must be held stable in every phase of the construction work!Please observe all applicable safety regula-tions!

For more information (wind loads etc.) see the section headed "Vertical and horizontal loads" in the Doka Calculation Guide.

Formwork height [m]

Panel strutEurex 60 550 /

Adjustable plumbing strut

340 5403.00 2.503.60 2.504.20 2.504.80 2.505.40 2.506.00 2.506.60 1.257.20 2.50 2.507.80 2.50 2.50 Panel strut 340,

540 Eurex 60 550 Adjustable plumbing strut

Anchor x2!97

05-2

25-0

1

A

B C

9727-343-01

ba

9745-214-01

c d

9727-344-01

fe



Anchoring the footplate

The Doka Express anchor can be re-used many times over - the only tool needed for screwing it in is a hammer.

Panel struts

A Doka Express anchor 16x125mm

B Doka coil 16mm

Cube compressive strength of concrete: min. 25 N/mm2 or 250 kg/cm2

(C20/25 grade concrete)

Follow the Fitting Instructions!

Required load-bearing capacity of alternative dowels: min. 13.5 kNFollow the manufacturer's applicable fitting instructions.

TR632-201-01

A

B

Product features:

● Can be telescoped in 8 cm increments● Fine adjustment by screw-thread● All parts are captively integrated - including the

telescopic tube (has safety stop to prevent dropout)

Panel strut 340 Panel strut 540

a ... 193.0 - 340.9 cmb ... 118.8 - 178.1 cm

a ... 309.0 - 550.0 cmb ... 226.2 - 281.3 cm

9705

-220

-01

a

b

9705

-219

-01

a

b



Eurex 60 550 used as a shoring &

plumbing accessory

b ... min. 365.5 cm - max. 608.9 cm

Bracing

Swivel couplers Eurex 60 can be fixed at any height on the outer tube. This means that bracing tubes can be attached wherever needed.

Examples:● between two or more props● to facilitate erection of the prop (as a "handle" for

workers to hold onto)

Converting the Eurex prop

Product features:

● For shoring high wall formwork● The "Adjusting strut 540 Eurex 60" makes han-

dling much easier, especially when the form-work is being transferred.

● Can be telescoped in 10 cm increments● Continuous fine adjustment by screw-thread

A Plumbing strut Eurex 60 550

B Extension Eurex 60 2.00m

C Coupler Eurex 60

D Connector Eurex 60

E Plumbing strut shoe Eurex 60

F Adjusting strut 540 Eurex 60

G Plumbing strut fixing part RD

H Bolt for Prop head D25 110

I Linch pin 6x40 galv. DIN 11023

Universal dismantling tool

The easy way to turn the spindle nuts.

A good rule of thumb here is:

The length of the shoring & plumbing accessory (i.e. the complete Eurex 60 550 plumbing-strut assembly) = the height of the gang-form to be shored.

9705

-224

-01

E

C

F

A

B

b

IHG

D

Typ

e

Len

gth

ext

end

ed L

[m

]

Plu

mb

ing

str

ut

Eu

rex

60 5

50 (

A)

Ext

ensi

on

Eu

rex

60 2

.00m

(B

)

Co

up

ler

Eu

rex

60 (

C)

Co

nn

ecto

r E

ure

x 60

(D

)

Plu

mb

ing

str

ut

sho

e E

ure

x 60

(E

)

Ad

just

ing

str

ut

540

Eu

rex

60 (

F)

Plu

mb

ing

str

ut

fixi

ng

par

t R

D (

G)

Bo

lt f

or

Pro

p h

ead

D25

110

(H

)

Lin

ch p

in 6

x40

gal

v. D

IN 1

1023

(I)

Wei

gh

t [k

g]

1 3.79 - 5.89 1 --- --- 1 1 1 2 2 2 88.72 5.79 - 7.89 1 1 --- 1 1 1 2 2 2 106.7

A Floor prop Eurex 60 550

B Swivel coupler Eurex 60

C Scaffolding tube 48.3mm

● Remove the baseplates (A) to convert a Floor prop Eurex 60 550 into a plumbing strut.

● Attach baseplates with a Fastening bolt 162 and a Spring pin d2.5 (B) (not included with product) to convert a Plumbing strut Eurex 60 550 into a floor prop.

9745

-203

-01

C

B

A

9745

-205

-01

A

B



Adjustable plumbing strut

See table below for required numbers and types of intermediate pieces

Design loads

1 ... Permitted axial load under tension = 40 kN

Items needed

1 ... Included with product

A Plumbing strut fixing part RD

B Spacer bolt, complete (for connecting the Plumbing strut fix-ing part to the spindle element)

C Spindle element without end-hinge

D Intermediate piece 2.40m

E Intermediate piece 3.70m

F Spindle element with end-hinge

Universal dismantling tool

The easy way to turn the spindle nuts.

9705

-221

-01

ED

BA

C

F

A good rule of thumb here is:

The length of the Adjustable plumbing strut should be the same as the height of the formwork to be supported.

Type Length L [m]Perm. axial load [kN] under

compression 1)

min. L half L max. L1 6.0 - 7.4 40.0 40.0 27.82 7.1 - 8.5 40.0 38.2 24.3

Typ

eS

pin

dle

ele

men

t w

ith

end

-hin

ge

Intermediate pieces

Sp

ind

le e

lem

ent

wit

ho

ut

end

-hin

ge

Plu

mb

ing

str

ut

fixi

ng

par

t R

DS

pac

er b

olt

(co

mp

lete

)H

exag

on

scr

ews

M16

x 6

0 8.

8N

ut

M16

8S

pri

ng

was

her

A16

1)

Wei

gh

t [k

g]

Short2.40 m

Long3.70 m

1 1 — 1 1 1 1 8 153.92 1 2 — 1 1 1 12 183.7



Pouring platforms with single bracketsDoka brackets can be used to make pouring and working platforms that can easily be assembled by hand.

Universal bracket 90"Use-anywhere" brackets for making working plat-forms.

a ... 28.4 cm (50.5 cm in the case of 3.00m high elements)b ... 87 cmh ... 160 cm

Using scaffolding tubes

Tools: Fork spanner 22 for mounting the couplers and scaffold-ing tubes.

Deck and guardrail boards

Plank thicknesses for support centres of up to 2.50 m:● Deck-boards min. 20/5 cm● Guard-rail boards min. 20/3 cm

Deck and guardrail boards: Per 1 metre length of platform, 0.9 m2 of floor decking and 0.8 m2 of guard-rail boards are needed (in-situ).Fastening the floor decking: with 5 square bolts M 10x70 and 1 square bolt M10x180 per bracket (included with product).Fastening the guard-rail boards: with 4 nails per bracket (not included with product).

Preconditions for use:

Only fix the pouring platform onto formwork con-structions that are sufficiently stable to transfer the expected loads.

Shore the formwork in a windproof manner when erecting it and when it is temporarily placed in the standing position.

Ensure that the formwork gang has sufficient stiff-ness.

In Germany, please remember the following:Scaffold components made of timber must con-form - as a minimum - to grading category S10 (as per DIN 4074 Pt 1), and must bear the symbol "Ü".

Observe all applicable safety regulations.

☞ The brackets must be secured against acci-dental lift-out

Permitted service load: 1.5 kN/m2 (150 kg/m2)

Load Class 2 to EN 12811-1:2003Max. influence width: 2.00 m

9705

-223

-01

a

b h

A Screw-on couplers 48mm 95

B Scaffolding tube 48.3mm

Caution!

➤ In the case of H20 N and P Doka beams where the first drilled hole is 5 cm from the end of the beam, it is not allowed to fix the bracket in the top hole in the beam!

9705

-226

-01

A

B

9732

-355

-01



Top scaffold bracket LLightweight bracket for making working platforms.

a ... 76 cm (22.5 cm in the case of 3.00m high elements)b ... 62 cm h ... 115 cm

Using scaffolding tubes

Tools: Fork spanner 22 for mounting the couplers and scaffold-ing tubes.

Deck and guardrail boards

Plank thicknesses for support centres of up to 2.50 m:● Deck-boards min. 20/5 cm● Guard-rail boards min. 20/3 cm

Deck and guardrail boards: Per 1 metre length of platform, 0.65 m2 of floor decking and 0.6 m2 of guard-rail boards are needed (in-situ).Fastening the floor decking: with 3 square bolts M 10x120 per bracket (not included with product).Fastening the guard-rail boards: with 3 nails per bracket (not included with product).

Intermediate platformsBecause there are holes drilled in the beams beneath every spindle level, it is possible to erect several platform levels on the Circular formwork element H20, from an element height of 1.20 m upwards.

Permitted service load: 1.5 kN/m2 (150 kg/m2)

Load Class 2 to EN 12811-1:2003Max. influence width: 2.00 m

A Scaffold tube connector

B Scaffolding tube 48.3mm

C Screw-on couplers 48mm 50

D Hexagon screw M14x40 + hexagon nut M14 (not included with product)

Caution!

➤ In the case of H20 N and P Doka beams where the first drilled hole is 5 cm from the end of the beam, it is not allowed to fix the bracket in the top hole in the beam!

9705

-222

-01

a

b

h

9705-227-01

A

B

D

C

9705

-228

-01



Ladder systemThe Ladder system XS permits safe vertical access to and from the intermediate platforms and pouring platforms:● when attaching/detaching the formwork to/from

the crane tackle● when opening/closing the formwork● when placing the reinforcement● during pouring

Note:

The Ladder system XS must be implemented in such a way that all national regulations are com-plied with.On formworks of up to 3.00 m in height, no Ladder system XS is possible.

Mounting instructions

Preparing the formwork

➤ Pre-assemble gang-forms face-down on an assembly bench.

➤ With the gang-form still flat, mount platforms and panel struts to it.

Attaching connectors to the formwork

➤ Place the "Connector XS wall formwork" against the frame profile near the top of the formwork.

➤ Fasten the "Connector XS wall formwork" to the frame profile using two Quick-acting clamps RU.

➤ Place a "Connector XS wall formwork" against the frame profile, near the bottom of the form-work.

➤ Fasten the "Connector XS wall formwork" to the frame profile using two Quick-acting clamps RU.

➤ For formwork heights above 5.85 m, an extra "Connector XS wall formwork" must be attached in the same way near the middle of the formwork (i.e. approx. half-way up).This extra connector prevents the ladder swaying when site crew climb up or down it.

Warning!

➤ The Ladders XS may only be used as part of the XS system, and must NOT be used separately (as "lean-to" ladders).

9705

-228

-01

☞ ➤ Do not oil or grease wedge-clamped joins.

A Connector XS wall formwork

B Quick-acting clamps RU

A Connector XS wall formwork

B Quick-acting clamps RU

9705

-229

-01

A

B

9705

-229

-02

A

B



Fixing the ladder

to the top "Connector XS wall formwork"

➤ Pull out the push-in bolt, and pivot the two safety hooks out of the way.

➤ Place the System ladder XS 4.40m onto the Con-nector XS, with the hooking brackets facing downwards.

➤ Close the safety hooks.➤ Insert the push-in bolt into whichever rung of the

ladder is suitable for the height of the formwork, and secure it with a linch pin.

- in the front position (a)

to the bottom "Connector XS wall formwork"

➤ Pull out the push-in bolt, pivot both safety hooks out of the way, and place the ladder onto the Connector XS.

➤ Close the safety hooks, re-insert the push-in bolt and secure it with a linch pin.

– in the front position (a) for one single ladder– in the rear position (b) in the telescoping zone (for 2 ladders)

➤ Mount the Securing barrier XS to the ladder, with fixing hooks and wing-nuts.

The components needed for mounting the Secur-ing barrier XS are captively attached to it.

Ladder system XS for heights above 3.75 m

Telescoping ladder extension (for adjusting to ground level)

➤ To telescope the ladders past one another, lift the safety latch on the ladder and fix the Ladder extension XS 2.30m onto the desired rung of the other ladder.

Close-up

A telescoping join between two Ladder exten-sions XS 2.30m can be made in the same way.

A Push-in bolt

B Safety hooks

C System ladder XS 4.40m

B Safety hooks

C Ladder XS

9705-230-01

aA

B

C

9705

-230

-02

a

B

Cb

D Securing barrier XS

A System ladder XS 4.40m

B Ladder extension XS 2.30m

C Safety latch

9764-256-01

D

Tr625-201-04

CA

B

Tr625-201-03

CB



Permanently fixed ladder extension

➤ Insert the Ladder extension XS 2.30m into the uprights of the System ladder XS 4.40m, with its hooking brackets facing downwards, and fasten it.Tighten the screws only very slightly!

Screws (C) are included in the scope of supply of the System lad-der XS 4.40m and the Ladder extension XS 2.30m.

Two Ladder extensions XS 2.30m can be fixed together in the same way.

➤ Attach the Ladder cage exit XS (the bottom of the cage must always be at the same height as the platform). The safety latches prevent the cage from being accidentally lifted out.

➤ Attach the Ladder cage XS to the next available rung. Attach further ladder cages, in each case to the next available rung.

Items needed

1 ) No allowance made here for intermediate exits.

A System ladder XS 4.40m

B Ladder extension XS 2.30m

C Screws, width-across 17 mm

☞ Important note:

➤ Always observe all relevant safety regula-tions applying to the use of the Ladder cage XS in the country in which you are operating (e.g. in Germany: BGV D 36).

D Ladder cage exit XS

F Safety latch

Tr625-202-01

CA

B

9705-229-03

F

D

E Ladder cage XS

F Safety latches (lift-out guard)

Connectors + ladder

Formwork height3.00-

3.60 m>3.60-6.00 m

>6.00-7.20 m

Connector XS wall formwork 2 2 3System ladder XS 4.40m 1 1 1Ladder extension XS 2.30m 0 1 2Framax quick-acting clamp RU 4 4 6

Ladder cage

Formwork height3.00-

3.15 m>3.15-4.05 m

>4.05-5.40 m

>5.40-6.60 m

>6.60-7.20 m

Ladder cage exit XS 1)

1 1 1 1 1

Securing bar-rier XS 1)

1 1 1 1 1

Ladder cage XS 1.00m 1)

0 1 2 3 4

9705-231-01

F

E



Exit onto an intermediate platform

Mounting the Ladder cage XS 0.25m

➤ Hook the ladder cage into an empty rung and secure it against accidental lift-out.

Opposing guard-railIf there are work platforms mounted on one side of the formwork only, then a fall-protection barrier must be mounted to the opposing formwork.

In general:

● The number of "Connectors XS wall formwork" and ladder components is shown in the "Items needed" table.

● For each additional exit, one "Ladder cage exit XS" and one "Securing barrier XS" are required.

● Any over-large openings above the intermedi-ate exit must be reduced with a Ladder cage XS 0.25m.

9705-228-02

9764-270-019764-269-01

1 2

A Opposing guard-rail (provided at site)

9705

-232

-01

A



ResettingThe slinging chains are hooked into the ready-mounted lifting-brackets of the Circular formwork element H20.

β ... max. 15°

Close-up of lifting-bracket:

A Lifting-bracket for Circular formwork H20

Max. load per lifting-bracket: 1000 kg

9705

-205

-01

A

9705-206-01



Structural designClosure diagram for determining the required widths of fitting-timber

Insi

de

rad

ius

[m]

Wall thickness [m]

A Closure on inside [cm]

B Closure on outside [cm]

9705-100

25.0

20.0

15.0

10.0

5.0

3.5

2.50 0.2 0.4 0.6 0.8 1.0 1.2

9 8 7 6 5 4 3 2 1 1

2

3

4

5

6

7

8

9

10

A

B

0.1 0.3 0.5 0.7 0.9 1.1

Article n°[kg] Article n°[kg]

24 999705002 - 11/2007 NK



Component overview

Doka Wall SystemCircular formwork H 20

Circular formwork element H20 2.40x0.70m 195.0 587820000Circular formwork element H20 2.40x1.20m 244.0 587821000Circular formwork element H20 2.40x2.40m 472.0 587822000Circular formwork element H20 2.40x3.00m 523.0 587813000Circular formwork element H20 2.40x3.60m 699.0 587823000Circular formwork element H20 2.40x4.80m 934.0 587824000Rundschalungselement H20 2,40m

Circular formwork element H20 2.50x0.70m 197.0 587825000Circular formwork element H20 2.50x1.20m 249.0 587826000Circular formwork element H20 2.50x2.40m 480.0 587827000Circular formwork element H20 2.50x3.00m 534.0 587814000Circular formwork element H20 2.50x3.60m 716.0 587828000Circular formwork element H20 2.50x4.80m 942.0 587829000Rundschalungselement H20 2,50m

Stacking plate for circular formwork H20 7.0 587830000Aufstocklasche für Rundschalung H20

Adjustable clamp 10cm 3.7 587808000Ausgleichsspanner 10cm

Wrench for circular formwork H20 0.70 587807000Schlüssel für Rundschalung H20

Template f. circular formw. H20 ...../.....mm 6.5 177020000Schablone für Rundschalung H20 ...../.....mm

Panel strut 340 without prop head 24.0 580365000Elementstütze 340 ohne Stützenkopfconsisting of:(A) Plumbing strut 340 14.2 588247000

GalvanisedLength: 190 - 341 cm

(B) Adjusting strut 120 7.2 588248000Length: 80 - 130 cm

(C) Prop shoe 2.1 588245000GalvanisedLength: 20 cmWidth: 11 cmHeight: 10 cm

Panel strut 540 without prop head 42.2 580366000Elementstütze 540 ohne Stützenkopfconsisting of:(A) Plumbing strut 540 29.6 588250000

GalvanisedLength: 309 - 550 cm

(B) Adjusting strut 220 10.6 588251000Length: 171 - 224 cm

(C) Prop shoe 2.1 588245000GalvanisedLength: 20 cmWidth: 11 cmHeight: 10 cm

Used as inside element

Used as outside element

GalvanisedHeight: 62 cm

GalvanisedLength: 30 cm


Weight per m2

Project-specific!

GalvanisedDelivery condition: folded closedObserve all applicable safety regula-tions.


A

B

C

A

B

C


25999705002 - 11/2007 NK

User information Doka circular formwork H 20 Component overview


Panel strut 340 30.2 588246000Elementstütze 340consisting of:(A) Prop head 3.5 588244000

2 pcs.GalvanisedLength: 40.8 cmWidth: 11.8 cmHeight: 17.6 cm

(B) Prop shoe 2.1 588245000GalvanisedLength: 20 cmWidth: 11 cmHeight: 10 cm

(C) Plumbing strut 340 14.2 588247000GalvanisedLength: 190 - 341 cm

(D) Adjusting strut 120 7.2 588248000Length: 80 - 130 cm

Panel strut 540 49.0 588249000Elementstütze 540consisting of:(A) Prop head 3.5 588244000

2 pcs.GalvanisedLength: 40.8 cmWidth: 11.8 cmHeight: 17.6 cm

(B) Prop shoe 2.1 588245000GalvanisedLength: 20 cmWidth: 11 cmHeight: 10 cm

(C) Plumbing strut 540 29.6 588250000GalvanisedLength: 309 - 550 cm

(D) Adjusting strut 220 10.6 588251000Length: 171 - 224 cm

Fixing unit RD 1.9 587806000Befestigungseinheit RD

Eurex 60 550Eurex 60 550depending on length, comprising:(A) Plumbing strut Eurex 60 550 42.5 582658000

Powder-coated, blueAluminiumLength: 343 - 553 cm

(B) Extension Eurex 60 2.00m 18.0 582651000Powder-coated, blueAluminiumLength: 250 cm

(C) Coupler Eurex 60 8.6 582652000AluminiumLength: 100 cmDiameter: 12.8 cm

(D) Connector Eurex 60 3.9 582657000GalvanisedLength: 15 cmWidth: 15 cmHeight: 30 cm

(E) Plumbing strut shoe Eurex 60 8.5 582660000GalvanisedLength: 31 cmWidth: 12 cmHeight: 33 cm

(F) Adjusting strut 540 Eurex 60 29.0 582659000GalvanisedLength: 302 - 543 cm

(G) Fixing unit RD 1.9 587806000GalvanisedLength: 19 cmWidth: 8 cm

(H) Bolt for prop head D25 110 0.45 508244050(I) Linch pin 6x40 galv. DIN 11023 0.03 020401



GalvanisedLength: 19 cmWidth: 8 cm

Delivery condition: separate partsObserve all applicable safety regula-tions.


26 999705002 - 11/2007 NK

Component overview User information Doka circular formwork H 20


Adjustable plumbing strutEinrichtstrebedepending on length, comprising:(A) Fixing unit RD 1.9 587806000

GalvanisedLength: 19 cmWidth: 8 cm

(B) Distance bolt compl. for spindle head 0.43 504322002(C) Spindle element without end-hinge 30.6 584316000(D) Extension strut 3.70m 80.0 584318000(E) Extension strut 2.40m 54.6 584317000(F) Spindle element with end-hinge 38.4 584315000

Universal dismantling tool 3.7 582768000Universal-Lösewerkzeug

Doka express anchor 16x125mm 0.31 588631000Doka-Expressanker 16x125mm

Doka coil 16mm 0.009 588633000Doka-Coil 16mm

Universal bracket 90 30.4 580476000Universal-Konsole 90

Top scaffold bracket L 12.0 587153000Betonierkonsole L

Scaffold tube 48.3mm 1.00m 4.0 682014000Scaffold tube 48.3mm 1.50m 6.0 682015000Scaffold tube 48.3mm 2.00m 8.0 682016000Scaffold tube 48.3mm 2.50m 10.0 682017000Scaffold tube 48.3mm 3.00m 12.0 682018000Scaffold tube 48.3mm 3.50m 14.0 682019000Scaffold tube 48.3mm 4.00m 16.0 682021000Scaffold tube 48.3mm 4.50m 18.0 682022000Scaffold tube 48.3mm 5.00m 20.0 682023000Scaffold tube 48.3mm 5.50m 22.0 682024000Scaffold tube 48.3mm 6.00m 24.0 682025000Scaffold tube 48.3mm .....m 4.0 682001000Gerüstrohr 48,3mm

Scaffold tube connection 0.27 584375000Gerüstrohranschluss

Screw-on coupler 48mm 50 0.84 682002000Anschraubkupplung 48mm 50

Framax fitting timber 2x12cm 2.70m 3.1 176020000Framax fitting timber 3x12cm 2.70m 4.7 176022000Framax fitting timber 5x12cm 2.70m 7.8 176024000Framax fitting timber 10x12cm 2.70m 15.5 176026000Framax-Passholz 2,70m

Reversible ratchet 1/2" 0.73 580580000Umschaltknarre 1/2"

Box nut 24 0.12 580584000Stecknuss 24

Painted blueDelivery condition: separate partsObserve all applicable safety regula-tions.

GalvanisedLength: 75.5 cm

GalvanisedLength: 18 cmPacked in units of 10 Follow fitting instructions!

GalvanisedDiameter: 1.6 cmPacked in units of 100 Follow fitting instructions!

GalvanisedLength: 121 cmHeight: 235 cmObserve all applicable safety regula-tions.

AB

C

D

E

F

Painted blueLength: 101 cmHeight: 159 cmObserve all applicable safety regula-tions.

Galvanised


GalvanisedWidth-across: 22 mm

Varnished yellow



27999705002 - 11/2007 NK

User information Doka circular formwork H 20 Component overview


Ladder system XS

Connector XS Wall formwork 20.8 588662000Anschluss XS Wandschalung

Framax quick acting clamp RU 3.3 588153400Framax-Schnellspanner RU

System ladder XS 4.40m 33.2 588640000System-Leiter XS 4,40m

Ladder extension XS 2.30m 19.1 588641000Leiternverlängerung XS 2,30m

Securing barrier XS 4.9 588669000Sicherungsschranke XS

Ladder cage XS 1.00m 16.5 588643000Ladder cage XS 0.25m 10.5 588670000Rückenschutz XS

Ladder cage exit XS 17.0 588666000Rückenschutz-Ausstieg XS

Form tie system 15.0

Tie rod 15.0mm galvanised 0.50m 0.72 581821000Tie rod 15.0mm galvanised 0.75m 1.1 581822000Tie rod 15.0mm galvanised 1.00m 1.4 581823000Tie rod 15.0mm galvanised 1.25m 1.8 581826000Tie rod 15.0mm galvanised 1.50m 2.2 581827000Tie rod 15.0mm galvanised 1.75m 2.5 581828000Tie rod 15.0mm galvanised 2.00m 2.9 581829000Tie rod 15.0mm galvanised .....m 1.4 581824000Tie rod 15.0mm non-treated 0.50m 0.73 581870000Tie rod 15.0mm non-treated 0.75m 1.1 581871000Tie rod 15.0mm non-treated 1.00m 1.4 581874000Tie rod 15.0mm non-treated 1.25m 1.8 581886000Tie rod 15.0mm non-treated 1.50m 2.1 581876000Tie rod 15.0mm non-treated 1.75m 2.5 581887000Tie rod 15.0mm non-treated 2.00m 2.9 581875000Tie rod 15.0mm non-treated 2.50m 3.6 581877000Tie rod 15.0mm non-treated 3.00m 4.3 581878000Tie rod 15.0mm non-treated 3.50m 5.0 581888000Tie rod 15.0mm non-treated 4.00m 5.7 581879000Tie rod 15.0mm non-treated 5.00m 7.2 581880000Tie rod 15.0mm non-treated 6.00m 8.6 581881000Tie rod 15.0mm non-treated 7.50m 10.7 581882000Tie rod 15.0mm non-treated .....m 1.4 581873000Ankerstab 15,0mm

Super plate 15.0 2.0 581966000Superplatte 15,0

Plastic tube 22mm 2.50m 0.45 581951000Kunststoffrohr 22mm 2,50m

Universal cone 22mm 0.005 581995000Universal-Konus 22mm

GalvanisedWidth: 89 cmHeight: 63 cm


Galvanised

Galvanised


Galvanised


Perm. capacity with safety factor of 1.6: 120 kNPerm. capacity to DIN 18216: 90 kNBreaking load: 195 kNNever weld or heat tie-rods - risk of fracture!

GalvanisedHeight: 6 cmDiameter: 12 cmWidth-across: 27 mmPacked in units of 20 Perm. capacity with safety factor of 1.6: 120 kNPerm. capacity to DIN 18216: 90 kNBreaking load: > rod breaking load (> 195 kN)

GreyDiameter: 4 cmPacked in units of 500

The Formwork Experts999705002 - 11/2007 NK

Doka circular formwork H 20 is a practical solution for smooth curved walls.

The pre-assembled elements of Doka circular formwork H 20 are faced with a heavy-duty form-ply. They are adapted to any curved shape by special spindles. The result is absolutely smooth curves – continuously

adjustable from a radius of 3.50 m upward. Circular formwork H 20 is available for rental, leasing or purchase.

At any of the Doka branches in your region.Why not give us a call?

The Doka Group's central plant at Amstetten, Austria

Documents

GB Doka circular formwork H20 - Home - FDJ … · as a generic method statement or incorporated ... the practical circu-System overview lar formwork for curved walls Doka circular