GT 24 Formwork Girder The versatile lattice girder with a high load ...

GT 24 Formwork GirderThe versatile lattice girder with a high load-bearing capacity

Important Notes

Without exception, all current safety regulations must

be observed in those countries where our products

are used.

The photos shown in this brochure feature construction

sites in progress. For this reason, safety and anchor

details in particular cannot always be considered as

conclusive or final. These are subject to the risk assess-

ment carried out by the contractor.

Safety instructions and load specifications are to

be strictly observed at all times. Separate structural

calculations are required for any deviations from the

standard design data.

The information contained herein is subject to technical

changes in the interests of progress. Errors and typo-

graphical mistakes reserved.

PERI GmbHFormwork Scaffolding EngineeringP.O. Box 1264

89259 Weissenhorn

Germany

Tel. +49 (0)7309.950- 0

Fax +49 (0)7309.951- 0

[email protected]

www.peri.com

Edition 09 l 2013

1

Content

The GT 24 Formwork Girder

2 The versatile lattice girder with a high load-bearing capacity

4 Ideal for use in wall and column formwork

8 The number one choice for use in slab formwork

10 Cost-effective use in special formwork construction

12 Components

2

The GT 24 Formwork GirderThe versatile lattice girder with a high load-bearing capacity

Formwork girders are the main com-ponent of numerous formwork solu-tions. In addition to the technical characteristics, the range of uses of the girder is crucial regarding their profi tability.

Load-bearing As lattice girder with a 24 cm

overall height for heavy loads

and wide spans

Durable Robust design, girder nodes

with mini-dovetail jointing, no

trapped pockets of moisture

Compatible Easy connection of site

accessories through the

latticework construction

Mark of conformity

Year of manufacture

Day of production

Length in cm (rounded off)

Ideal for site nailing require-

ments due to the 6 x 8 cm thick

timber chord.

Strong impact protection pro-

vided by the steel end caps and

side-to-side steel rivets.

Decisive for the cost-effectiveness of

a girder are not the initial investment

costs but, in particular, the service life

and handling costs.

The GT 24 formwork girder makes a

very convincing case in all of these

aspects. It provides a high load-bearing

capacity as well as rigidity and signifi cant

advantages in practical applications.

When used in wall, column and slab

formwork operations as well as in

special formwork construction, material

usage and the actual amount of work

required can therefore be reduced with

the GT 24 formwork girder.

3

The GT 24 is extremely

durable through the

mini-dovetail jointing.

The struts penetrate the chords along the entire

cross-section. It has practically no cavities that

could trap water. Through the lattice construction,

the GT 24 girder is well-ventilated when stacked.

A girder wall formwork provides maximum flexibility

whilst the number and position of the girders can

be adapted to exactly match individual project

requirements.

The GT 24 formwork girder is available in lengths

of up to 17.80 m and can therefore be used for high

walls without any joints.

The certificate of conformity

shows that the GT 24 girder

corresponds to the technical

rules of DIN EN 13377 and

that continuous production

monitoring is guaranteed.

Special solutions can also be cost-effectively

realized with the GT 24; for example, shuttering

for bridge cantilevers.

Compared to other 20 cm high formwork

girders, the higher load-bearing capacity

of the GT 24 results in fewer girders,

steel walers or slab props for both wall

and slab formwork. This means material

and labor cost savings – with every use

and on every construction site.

Building authority approval

The GT 24 lattice girder

has been approved by the

German Institute for Building

Technology (DIBt).VT 20 460 kN/m2

GT 24 887 kN/m2

VT 20 5 kNm

GT 24 7 kNm

VT 20 22 kN

GT 24 28 kN

VT 20 5.9 kg/m

GT 24 5.9 kg/m

Weight

± 0 %

Perm. bearing force

Perm. bending moment

Bending stiffness

+ 27 %

+ 40 %

+ 93 %

4

The GT 24 Formwork GirderIdeal for use in wall and column formwork

The GT 24 formwork girder is a cen-tral component of the VARIO GT 24 girder wall formwork system.

Pre-assembled standard elements

with 21 mm formlining are available for

normal applications and have been de-

signed for a permissible fresh concrete

pressure of up to 60 kN/m².

Alternatively, customized large-sized ele-

ments can be planned and assembled

on the basis of the VARIO GT 24 girder

wall formwork.

These project-specific 14 m high VARIO elements

were designed for a fresh concrete pressure of

150 kN/m² and covered using large-sized Fin-Ply

Maxi plywood formlining.

Moving a ready-to-use VARIO GT 24 standard

element complete with concreting platform and

push-pull props.

5

By means of the Extension Splice 24,

VARIO GT 24 standard elements can be

extended up to a maximum of 8.00 m.

The required number of extension

splices depends on the height of the

element.

VARIO GT 24 standard elements are

available in 60-cm height increments

(2.40 m to 6.00 m) and in 4 standard

widths (1.00 m to 2.50 m). These pan-

els are simply extended for realizing

greater heights. The photo shows

6.00 m high elements complete

with platforms for construction of an

exhibition centre.

With additional overlapping girders,

formwork up to 11.90 m high can be

assembled using standard elements.

The photo shows 10.20 m high wall

formwork for the construction of a

multi-storey car park.

Mounting the Extension Splice 24 takes place

without requiring holes to be drilled through

the girder.

For this grain silo, VARIO GT 24 wall

formwork was adapted to exactly

match the curvature.

6

The GT 24 Formwork GirderIdeal for use in wall and column formwork

The GT 24 formwork girder is also used as the main component for the RUNDFLEX and GRV systems. With this circular formwork, sewage plants, spiral ramps for multi-storey car parks, silos and other structures with a wide range of curvatures can be realized.

RUNDFLEX functions with pre-assembled

standard elements which can be quickly

and continuously adjusted to suit any

required radius (for a wall inner radius

from 1.00 m).

GRV formwork is characterized by the fact

that circular structures can be realized

without requiring any anchors. Because

with this system, the fresh concrete

pressure is accommodated by means

of the ring tension forces in walers

on the external elements and the ring

compressive forces in the walers of the

internal elements.

3.60 m high RUNDFLEX formwork for construction

of a sewage treatment plant with an internal wall

radius of 13.76 m.

Spindles of the RUNDFLEX elements are adjusted

using the Combi-Ratchet Spanner SW 24.

GRV creates large or small radii for closed formwork

rings without any tie points.

7

The GT 24 formwork girders in use with

column formwork systems. For VARIO

GT 24 column formwork (left), VARIO

standard components as well as wedges

and tie yokes are used.

The high load-bearing, articulated walers

of the VARIO QUATTRO column form-

work allow cross-sections of up to

1.20 m x 1.20 m.

The VARIO QUATTRO can be moved as a complete

unit using a single crane pick.

Large-sized columns – quickly and safely shuttered

with VARIO GT 24 column formwork.

PERI GRV and GT 24 formwork girders in use with

conically-shaped column formwork.

8

The GT 24 Formwork GirderThe number one choice for use in slab formwork

The MULTIFLEX girder slab formwork system is the flexibly adaptable solu-tion for any ground plan and height. The use of the GT 24 girder allows the realization of large spans – this reduces the number of individual components.

The high load-bearing capacity of the

GT 24 formwork girder increases the

cost-effectiveness of the slab formwork;

in addition, the few system components

simplify all shuttering and striking proce-

dures as well as the logistics.

a

b

c

0,60

0,90

1,20

1,50

1,80

2,10

2,40

d = 0,25 m

3-S, 21 mm

a = 0,50 m

c = 1,20 m

b = 2,70 m

F= 27,2 kN

MULTIFLEX

GT 24 / VT 20Deckenstärke d [m]

Belastung q [kN/m2]

Zulässiger Jochträgerabstand b [m]

Vorhandene Stützenlast F [kN]

Querträgerabstand a [m]

Stützenabstand c [m]

Belastung:Nach DIN 4421

Durchbiegung: Beschränkt auf l/500

Berechnungsgrundlage ist eine Dreischichtplatte

21 mm mit E=7500 N/mm2 (durchfeuchtet) und

zulässiger B=6,5 N/mm2 (durchfeuchtet).

Ausgabe 2002

Beispiel :

Vorhandene Deckenstärke

Gewählte Schalhaut 3-S-Platte

Gewählter Querträgerabstand

Gewählter Stützenabstand

Zulässiger Jochträgerabstand

Vorhandene Stützenlast

a

b

c

0,60

0,90

1,20

1,50

1,80

2,10

2,40

d = 0,25 m

3-S, 21 mm

a = 0,50 m

c = 0,90 m

b = 2,70 m

F= 20,4 kN

MULTIFLEX

VT 20 / VT 20

Deckenstärke d [m]

Belastung q [kN/m2]





Belastung: Nach DIN 4421





Ausgabe 2002

Beispiel :







a

b

c

0,60

0,90

1,20

1,50

1,80

2,10

2,40

d = 0,25 m3-S, 21 mma = 0,625 mc = 1,20 mb = 2,80 mF= 28,0 kN

MULTIFLEXGT 24 / GT 24

Deckenstärke d [m]Belastung q [kN/m2]Zulässiger Jochträgerabstand b [m]Vorhandene Stützenlast F [kN]Querträgerabstand a [m]


Belastung: Nach DIN 4421Durchbiegung: Beschränkt auf l/500Jochunterstützung: Im Trägerknoten

Berechnungsgrundlage ist eine Dreischichtplatte21 mm mit E=7500 N/mm2 (durchfeuchtet) undzulässiger B=6,5 N/mm2 (durchfeuchtet).Ausgabe 2002

Beispiel :

Vorhandene DeckenstärkeGewählte Schalhaut 3-S-PlatteGewählter QuerträgerabstandGewählter StützenabstandZulässiger JochträgerabstandVorhandene Stützenlast

a

b

c

0,60

0,90

1,20

1,50

1,80

2,10

2,40

d = 0,25 m

3-S, 21 mm

a = 0,50 m

c = 1,20 m

b = 2,70 m

F= 27,2 kN

MULTIFLEX

GT 24 / VT 20Deckenstärke d [m]

Belastung q [kN/m2]





Belastung:Nach DIN 4421





Ausgabe 2002

Beispiel :







a

b

c

0,60

0,90

1,20

1,50

1,80

2,10

2,40

d = 0,25 m

3-S, 21 mm

a = 0,50 m

c = 0,90 m

b = 2,70 m

F= 20,4 kN

MULTIFLEX

VT 20 / VT 20

Deckenstärke d [m]

Belastung q [kN/m2]





Belastung: Nach DIN 4421





Ausgabe 2002

Beispiel :







a

b

c

0,60

0,90

1,20

1,50

1,80

2,10

2,40

d = 0,25 m3-S, 21 mma = 0,625 mc = 1,20 mb = 2,80 mF= 28,0 kN

MULTIFLEXGT 24 / GT 24

Deckenstärke d [m]Belastung q [kN/m2]Zulässiger Jochträgerabstand b [m]Vorhandene Stützenlast F [kN]Querträgerabstand a [m]


Belastung: Nach DIN 4421Durchbiegung: Beschränkt auf l/500Jochunterstützung: Im Trägerknoten

Berechnungsgrundlage ist eine Dreischichtplatte21 mm mit E=7500 N/mm2 (durchfeuchtet) undzulässiger B=6,5 N/mm2 (durchfeuchtet).Ausgabe 2002

Beispiel :

Vorhandene DeckenstärkeGewählte Schalhaut 3-S-PlatteGewählter QuerträgerabstandGewählter StützenabstandZulässiger JochträgerabstandVorhandene Stützenlast

9

Apart from the proven slide-rule tables, a digital solution for planning the girder slab formwork is also available.

With the MULTIFLEX confi gurator, the

user can quickly and easily calculate

the girder and prop spacings on a smart

phone or tablet. After selecting the

required girder combination along with

details of the slab thickness and cross-

beam spacing, the app determines the

maximum permissible spacings for

the main beams and props with the

corresponding prop loads and maximum

cantilever lengths.

Alternatively, the slab formwork can be

quickly and easily confi gured with the

proven slide-rule tables.

A GT 24 double main beam has been used here as

the longitudinal girder support in order to transfer

the high loads of a beam construction.

By changing the main beam direction and telescop-

ing the cross-beams, the MULTIFLEX slab formwork

can be easily adapted to suit any ground plan.

GT 24 formwork girders are also used in combina-

tion with steel walers for slab edge tables.

10

The GT 24 Formwork GirderCost-effective use in special formwork construction

The GT 24 formwork girders can be versatilely and efficiently used also for special solutions.

The use of formwork girders with steel

walers and brackets allow the realization

of customized solutions also for special

solutions. Comparing formwork girders

of 20 cm overall height to the high load-

bearing capacity of the GT 24 formwork

girders, the GT 24 girders result in fewer

components and supports. This saves on

both working time and labour costs.

11

For this bridge superstructure, GT 24 formwork

girders carry the concreting loads into the customized

sub-structure.

For this steel composite bridge, the GT 24 girders

transfer the loads into units consisting of SRU steel

walers and SLS heavy-duty spindles. The high load-

bearing capacity allows large spans with minimum

deflection.

By means of timber formers and VARIOKIT raised

formwork units, this slab table exactly matches the

undulating roof construction.96.50

GT 24 Formwork Girder

12

Item no. Weight kg

075100

075120

075150

075180

075210

075240

075270

075300

075330

075360

075390

075420

075450

075480

075510

075540

075570

075600

5,300

7,100

8,900

10,600

12,400

14,200

15,900

17,700

19,500

21,200

23,000

24,800

26,600

28,300

30,100

31,900

33,600

35,400

Girders GT 24Girder GT 24 L = 0.90 mGirder GT 24 L = 1.20 mGirder GT 24 L = 1.50 mGirder GT 24 L = 1.80 mGirder GT 24 L = 2.10 mGirder GT 24 L = 2.40 mGirder GT 24 L = 2.70 mGirder GT 24 L = 3.00 mGirder GT 24 L = 3.30 mGirder GT 24 L = 3.60 mGirder GT 24 L = 3.90 mGirder GT 24 L = 4.20 mGirder GT 24 L = 4.50 mGirder GT 24 L = 4.80 mGirder GT 24 L = 5.10 mGirder GT 24 L = 5.40 mGirder GT 24 L = 5.70 mGirder GT 24 L = 6.00 mUniversal formwork girder made of wood.

L 918

1214

1510

1806

2102

2398

2694

2990

3286

3582

3878

4174

4470

4766

5062

5358

5654

5950

NoteConstruction Approvel No.Z-9.1-157.

The common lengths of the GT 24 are colour-

coded to allow easy handling.

Technical Dataperm. Q

D = 14.0 kN

perm. QZ = 13.0 kN

perm. M = 7.0 kNm

ly = 8064 cm4

QD = perm. shear force Compression Strut

QZ = perm. shear force Tension Strut

311 296

163 296

28

80

6012

060

240

L

The optimal System for every Project and every Requirement

PERI GmbHFormwork Scaffolding EngineeringP.O. Box 1264

89259 Weissenhorn

Germany

Tel. +49 (0)7309.950-0

Fax +49 (0)7309.951-0

[email protected]

www.peri.com

System-Independent Accessories

Wall Formwork Column Formwork

Slab Formwork Climbing Systems Tunnel Formwork Bridge Formwork

Shoring Systems Facade ScaffoldConstruction Scaffold Industrial Scaffold

Access Protection Scaffold Services

DE

en

|

04

201

5

5m

a

79

05

84

©

PE

RI

Gm

bH

GT 24 Formwork Girder The versatile lattice girder with a high load ...

Documents

Transcript of GT 24 Formwork Girder The versatile lattice girder with a high load ...