L&G COMMERCIALlgcommercial.ie/pdf/Formwork.pdf · as a generic method statement or incorporated...

L&G COMMERCIALH20 Loose Deck

ISO COMPETITIVE EDGE-BS EN ISO-

CERTIFIED COMPANY

CEL

ISO 9001

1

Table of Contents

Elementary safety warnings 2

Product description 4

System logic for all floor-slabs up to 30 cm thick 5

Instructions for assembly and use 6

System components of Gael Flex H20 Loose Deck 11

Gael Flex H20 Loose Deck – Component Overview 12

Component Overview 13

2

Elementary safety warnings

User target groups

• ●This User Information booklet (Method

Statement) is aimed at everyone who will be

working with the Gael Form product or system

it describes. It contains information on how to

set up this system, and on correct, compliant

utilization of the system.

• ●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 under-

standing this booklet, or who can do so only with

difficulty, must be instructed and trained by the

customer.

• ●The customer is to ensure that the information

materials provided by Gael Form (e.g. User

Information booklets, Instructions for Assembly

and Use, Operating Instruction manuals, plans

etc.) are available to all users, and that they have

been made aware of them and have easy access

to them at the usage location.

Remarks on this document

• ●This User Information booklet can also be used

as a generic method statement or incorporated

with a site-specific method statement.

• ●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.

• ●Further safety instructions, especially warnings,

will be found in the individual sections of this

document!

Planning

• ●Provide safe workplaces for those using the

formwork (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

calculations must be produced for checking, as

well as supplementary assembly instructions.

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 under the direction

and supervision of suitably skilled persons with

the authority to issue instructions.

• ●The stability of all components and units must

be ensured during all phases of the construction

work!

• ●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.

• ●Fire-sources are not permitted anywhere near

the formwork. Heating appliances are only

allowed if properly and expertly used, and set up

a safe distance away from the formwork.

• ●The work must take account of the weather

conditions (e.g. risk of slippage). In extreme

weather, steps must be taken in good time to

safeguard the equipment, and the immediate

3

vicinity of the equipment, and to protect

employees.

• ●All connections must be checked regularly

to ensure that they still fit properly and are

functioning correctly. It is very important to check

all screw-type connections and wedge-clamped

joins whenever the construction operations

require (particularly after exceptional events such

as storms), and to tighten them if necessary.

Assembly

• ●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

damaged, deformed, or weakened due to wear,

corrosion or rot.

• 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

Gael Form for advice first.

• The assembly work must be carried out by

suitably qualified employees of the client’s.

Erecting the formwork

• ●Gael Form products and systems must be set up

in such a way that all loads acting upon them are

safely transferred.

Pouring

• ●Do not exceed the permitted fresh-concrete

pressures. Excessively high pouring rates lead to

formwork overload, cause greater deflection and

risk causing breakage.

Striking the formwork

• ●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.

• ●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!

4

Product description

B

Gael Flex H20 Loose Deck - the versatile hand-set system for floor-slabs

Gael Flex H20 Loose Deck can easily be adapted to

fit any lay- out, simply by telescoping the Gael Form

H20 beams. The materials planning work is done by

slide-rule, which appreciably reduces the costs of

planning and operations scheduling.

• ●no structural-design work is needed, as H20

Loose Deck shows you the maximum spacing for

all slabs up to 30 cm thick

• ●you can tell at a glance whether the formwork

has been set up correctly

Further advantages:

• ●infill zones are managed within the system,

making it easy to accommodate walls and

columns

• ●for shoring heights of up to 5.50 m

• ●any type of form-facing can be used

• ●no need to measure up

Gael Flex H20 Loose Deck is ideal for enclosed

spaces where the formwork superstructure can rest

up against walls on all sides.

Horizontal forces at exposed slab-edges, drop

beams or steps in ceiling slabs must be restrained

by strutting or back-stays

Small number of system components - all perfectly coordinated

5

• The marks on the beams show you the maximum spacing:

- every 4 marks for primary beams

- every 6 marks for props with removable folding tripods

The straightforward logic underlying the Gael Flex H20 Loose Deck system means that there is no need for

planning and operations scheduling work. The quantities are simply computed using the materials sliderule

System logic for all floor-slabs up to 30 cm thick

A Floor prop Europrop + Lowering head H20 + Removable folding tripod

B Floor prop Europrop + Supporting head H20 DF

C Gael Form beam H20 top 2.65 m (secondary beam)

D Gael Form beam H20 top 3.90 m primary beam)

6

Instructions for assembly and use

IMPORTANT NOTE: As well as the instructions given here, the section headed “Reshoring props, concrete technology and striking” MUST be followed.!

CAUTION! If the floor props are transported with the lowering heads still attached, you must secure these with a Spring-locked pin 16 mm to prevent them dropping out. This is particularly important when they are transported in the horizontal.

!

IMPORTANT NOTE: Do not oil or grease wedge-clamped joins.!

The lowering heads that will be un-der the primary beams next to the walls must be turned inwards so that they can be knocked undone when the time comes to take down the formwork.

Erecting the formworkPutting up the floor props

• ●Place primary and secondary beams along the

edges.

Max centre of secondary beams 500mm on

3000mm deep slab

- 4 for primary beams 2m centres on primary

beam on 3000mm deep slab

- 2nd 1m for props on 3000mm deep slab

• ●Roughly adjust the height of the floor prop, using

the fastening clamp.

• ●Put up each removable folding tripod.

• ●Put the floor prop into the tripod and fix it in place

with the clamping lever. Before stepping onto

the formwork, check again to make sure that the

props have been correctly fixed in the tripods.

Setting up tripods in corners or up against walls

If it is not possible to completely unfold the legs

of the tripod – e.g. at the edges of a structure or at

floor breakthroughs etc. we recommend fastening

this tripod to an adjacent floor prop instead,

where there is room for the legs to be completely

7

WARNING!It is not permitted to set down any loads on the floor-slab formwork (e.g. beams, panels, reinforcements) until the intermediate props have been set up!

!

IMPORTANT NOTE: Wherever necessary, connect secondary and primary beams using the Connector clip H20.

!

Be sure to place a beam (or double beam) wherever there is to be a joint between the Gael Form ply panels.

!

Planks can be attached to the floor props as diagonal braces, using the Bracing clamp B. (This is only to help stand the props upright and is not suit-able for restraining horizontal loads).

Inserting the primary beams

• ●Using beam-forks, place the primary beams into

the lowering heads

• The lowering heads can hold both single beams

(on edge-of-room props) and double beams (at

overlaps).

• ●Adjust the primary beams to the correct floor-

slab height.

Placing the secondary beams on the primary beams

• ●Use the beam forks to place the secondary

beams on the primary beams, with an overlap.

• Maximum spacing of secondary beams 500mm

3000mm deep slab

8

A Supporting head H20 DF

B Gael Form beam H20 top

IMPORTANT NOTE: Put on personal protective equipment before starting to mount the guard rails.

!

Putting up the intermediate props

• Place the Supporting head H20 GF on the inside

tube of the floor prop and secure it with the

integral spring-steel stirrup

• Put up the intermediate props.

Maximum prop spacing: 2 marks apart

Laying the Gael Form 21mm 3-ply panels

• Mount guard rails around all exposed edges.

There are 4 possible ways of ensuring safety

when laying the Gael Form21mm 3-ply panels:

» A mobile fall barrier makes it possible to

lay the Gael Form 21mm 3-ply panels

safely when working from above.

9

IMPORTANT NOTE: Windproofing

●For increased stability, in larger rooms, the full erection sequence of “primary beams + secondary beams + formwork sheets” should be carried out progres-sively for successive sub-areas of the room. When doing this, provide suitable bracing to walls or columns.

●If there is any risk of the formwork being blown over, all free-standing, non-en-closed areas of slab formwork must be secured during work-breaks and when work finishes for the day.

!

Where necessary (e.g. edge zones), secure the form-ply with nails.Recommended nail lengths

• sheet thickness 21 mm- approx. 50 mm

• sheet thickness 27 mm- approx. 60 mm

The Wheel-around scaffold is ideal for striking the formwork from floor-slabs above rooms of medium height.

• collapsible wheelaround platformmade of light alloy

• variable working heights of up to3.80 m (max. platform height: 1.75 m)

• platform width: 0.80 m

For greater heights than this, the Gael Form mobile scaffold tower is ideal.

Observe all stipulated stripping times!!

• Lay the Gael Form panels at right angles to the

secondary beams.

• Spray the Gael Form 21mm 3-ply panels with

parting agent.

PouringTo protect the surface of the form-facing, we

recommend using a vibrator with a protective rubber

cap.

Striking

Removing the intermediate props

• Remove the intermediate props and put them in

the stacking pallet.

After the intermediate props have been removed,

there remain only props spaced 2.0 m apart in

the direction of the secondary beams and 3.0 m

apart in the direction of the primary beams. This

leaves enough space to manoeuvre wheel-around

scaffolds and stacking pallets without difficulty.

10

When lifting the equipment to the next storey, it is better to transport the floor props and the lowering heads separate-ly (the floor props on their own can be stored much more space efficiently in the stacking pallet)

IMPORTANT NOTE: For further information (number of props etc.), see “Reshoring props, concrete technology and striking”

!

Lowering the floor-slab formwork

• Lower the floor-slab formwork by striking the

wedge on the lowering head with a hammer

Removing parts that are no longer needed

• Turn the secondary beams over onto their sides,

pull them out and put them in the stacking pallet.

Leave the beams under the panel-joints in place.

• Take out the Gael Form 21mm 3-ply panels and

put them in the stacking pallet.

• Remove the remaining secondary beams and the

primary beams, and put them in the stacking pallet.

Removing the floor props

1) Hold the inner tube with one hand.

2) Open the fastening clamp to unfix the inner tube.

Guide this by hand while lowering it into the outer

tube

Put the removable folding tripods and props in the

stacking pallet.

Repropping

• Before pouring the next floor-slab (i.e. above the

one that has just been stripped), put up reshoring

props.

11

System components of Gael Flex H20 Loose Deck – also for slab thicknesses of over 30 cm

Only one system in use on the site

Up to a slab thickness of 30 cm, no structural design work is needed. However, it is also possible to compute

the exact quantities of the same system components that will be needed for any given thickness of slab,

with reference to the table. In this way, only as much formwork equipment is used as is really needed, as

dictated by the slab load. The following tables assume a live load of 20 percent of the dead load of the fresh

concrete, but not less than 1.5 kN/m² (150 kg/m²). Mid-span deflection has been limited to l/500. On the

site, the easy-to-use slide-rule is ideal for determining the permissible spacing of primary beams and props.

Slab thickness [cm]

Total load qk [kN/m2]

Max. permitted spacing of primary beams [m]

Max. permitted spacing of props [m]

for a secondary-beam spacing [m] of

for the selected primary-beam spacing [m] of

0.50 0.625 0.667 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.50

10 4.40 3.63 3.37 3.29 3.17 2.88 2.67 2.46 2.28 2.13 2.01 1.82 1.65 1.52 1.30

12 4.92 3.43 3.19 3.12 3.00 2.72 2.53 2.33 2.16 2.02 1.81 1.63 1.48 1.36 1.16

14 5.44 3.27 3.04 2.97 2.86 2.60 2.41 2.21 2.05 1.84 1.63 1.47 1.34 1.23 1.05

16 5.96 3.14 2.92 2.85 2.74 2.49 2.31 2.12 1.92 1.68 1.49 1.34 1.22 1.12 0.96

18 6.48 3.03 2.81 2.75 2.65 2.40 2.22 2.03 1.76 1.54 1.37 1.23 1.12 1.03 0.88

20 7.00 2.93 2.72 2.66 2.56 2.32 2.14 1.90 1.63 1.43 1.27 1.14 1.04 0.95 —

22 7.52 2.84 2.64 2.58 2.48 2.26 2.06 1.77 1.52 1.33 1.18 1.06 0.97 0.89 —

24 8.04 2.76 2.57 2.51 2.42 2.19 1.99 1.66 1.42 1.24 1.11 1.00 0.90 0.83 —

26 8.56 2.70 2.50 2.45 2.35 2.14 1.87 1.56 1.34 1.17 1.04 0.93 0.85 — —

28 9.08 2.63 2.44 2.39 2.30 2.09 1.76 1.47 1.26 1.10 0.98 0.88 0.80 — —

30 9.66 2.57 2.39 2.34 2.25 2.03 1.66 1.38 1.18 1.04 0.92 0.83 0.75 — —

35 11.22 2.45 2.27 2.23 2.14 1.78 1.43 1.19 1.02 0.89 0.79 0.71 — — —

40 12.78 2.35 2.18 2.13 2.04 1.56 1.25 1.04 0.89 0.78 0.70 0.63 — — —

45 14.34 2.26 2.10 2.04 1.93 1.39 1.12 0.93 0.80 0.70 0.62 0.56 — — —

50 15.90 2.18 2.01 1.94 1.83 1.26 1.01 0.84 0.72 0.63 0.56 — — — —

Timber formwork beams H20

Spacing of secondary beams

Thickness of slab [cm]

Max. spacing of secondary beams [m] when using the following

for a secondary-beam spacing [m] of

Gael Flex 21mm

3-SO 21mm 3-SO 27mm

Up to 18 0.75 0.75 0.75

Up to 40 0.67 0.67 0.75

Up to 50 0.50 0.625 0.67

12

Gael Flex H20 Loose Deck – Component Overview

Height Weight Article

Gael Form floor prop Europrop 20 550

295 - 550 cm 35kg GFD0007


152 - 250 cm 14.8kg GFD0008


172 - 300 cm 16.7kg GFD0009


197 - 350 cm 20.5kg GFD0010


227 - 400 cm 24.9kg GFD0011


248 - 450 cm 29.2kg GFD0012


4-way head H20 33cm 4kg GFD0013


Connector Clip 18cm 0.7kg GFD0016


Supporting Head H20 GF 8cm 0.77kg GFD0015

Galvanised

Perm, Capacity:

Depending on model

20/30kN at any

telescoping length to

EN 1065

Galvanised

Length: 25cm

Width: 20cm

Galvanised

Length: 19cm

Width: 11cm

Galvanised

13

Component Overview


Gael Form H20 PLUS 2.65m 265 cm 14.5kg GFD0001


Gael Form H20 PLUS 3.30m 330 cm 18kg GFD0003






Gael Form Stacking Pallet 77cm 42kg TA002


Gael Form Skeleton Transport Box 113cm 87kg TA001

Varnished Yellow

Permitted bending moment

5.0 kNm

Permitted Shear Force 11.0 kN

Values Applicable only when beams

are upright.

Galvanised

Max Load 1100kg

Follow Directions in

“Operating Instructions”

Galvanised

Max Load 1100kg



14


Gael Form Formwork sheet 2500mm x 500mm

50cm 13.8kg GFFW0002


Gael Form Multi Trip Transport Box 78cm 75kg TA001 -1


Handrail Clamp S 123 - 171cm 11.5kg GFD0022


Handrail Post 1.10m 110cm 5.6kg GFD0023

Galvanised

Max Load 1100kg



Galvanised

Galvanised

CONTACTOS COLOMBIAMargarita DuqueDirectora Comercial E-mail:[email protected]: 3137227281Viviana MarinKey Acount ManagerE-mail: [email protected]: 3102302856

CONTACTOS IRLANDANelson GonzalezCEOE-mail: [email protected]: 00353873525683

L&G COMMERCIALlgcommercial.ie/pdf/Formwork.pdf · as a generic method statement or incorporated...

Documents

Transcript of L&G COMMERCIALlgcommercial.ie/pdf/Formwork.pdf · as a generic method statement or incorporated...