ssl pt manual 2011 multi

8/12/2019 Ssl Pt Manual 2011 Multi

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PRESTRESSINGTECHNOLOGY

www.structuralsystems.com.au


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w w w . s t r u c t u r a l s y s t e m s . c o m . a u

Data contained herein is subject to change without notice. Use of information and details presented in this documentshould be verified by a qualified engineer for suitability to specific applications.


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Structural Systems are a leading provider of post-tensioning

technology and value engineering solutions. With a wealth

of engineering and contracting experience obtained through

the successful completion of projects throughout Australia

and overseas since 1961.

Post-Tensioning is a method of reinforcing (strengthening)

concrete or other materials with high-strength steel strands.

The benefits post-tensioning brings to a structure include:

Large open plan column free floor spaces

Reduced construction costs

Faster construction

Water resistant properties

Floor to floor height reduction

Reduced foundation load

Improved deflection control

Greater column free areas

Reduced carbon footprint

Greater loading capacity

Larger spans

The technology reduces the amount of conventional

reinforcement and concrete required thus delivering a more

economical and environmentally friendly solution.

Structural Systems is committed to improving the standard

of design and construction in the post-tensioning industry

and is a founding corporate member of the Post-Tensioning

Institute of Australia Limited.

1w w w . s t r u c t u r a l s y s t e m s . c o m . a u

INTRO

DUCTION

01 INTRODUCTION

02 POST-TENSIONING DESIGN DATA

03 POST-TENSIONING

05 SLAB POST-TENSIONING

16 MULTI-STRAND POST-TENSIONING

30 MULTI-WIRE POST-TENSIONING

33 BAR POST-TENSIONING

37 EXTERNAL POST-TENSIONING40 UNBONDED BAND POST-TENSIONING

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Notes: All strands are 7 wire relax 2 steel.

2 w w w . s t r u c t u r a l s y s t e m s . c o m . a u

POST-TENSIONING

DESIGN

DATA

Standard Nominal

Diameter

mm

Nominal Steel

Area

mm2

Nominal Mass

Kg/lm

Strand

MBL / Fm (7)

kN

Minimum

Proof Load

kN

Strand

Relaxation

%

Modulus of Elasticity

MPa

AS 4672 (1) 12.7 super

15.2 super

15.2 EHT

98.6

143

143

0.786

1.125

1.125

184

250

261

156 (4)

212 (4)

222 (4)

2.5

2.5

2.5

185 to 205x103

185 to 205x103

185 to 205x103

BS 5896 (2) 12.9 super

15.7 super

100

150

0.785

1.180

186

265

158.1 (5)

225.3 (5)2.5

2.5

180 to 205x103

180 to 205x103

prEN 10138-3 (3) 15.2 regular

15.7 regular

15.2 super

15.7 super

140

150

140

150

1.093

1.172

1.093

1.172

248

266

260

279

213.0 (5)

229.0 (5)

224.0(5)

240.0 (5)

2.5

2.5

2.5

2.5

180 to 205x103

180 to 205x103

180 to 205x103

180 to 205x103

STRAND PROPERTIES

Notes: In some cases higher or lower jacking forces are permitted by local standards.MBL = Minimum Breaking Load

SSL Post-Tensioning System Standard

AS 3600 EN 1992

BBR VT Cona CMI System 80% MBL 80% MBL

BBR VT Cona CME System 77% MBL 77% MBL

BBR VT Cona CMB System 80% MBL 80% MBL

Slab System 85% MBL 80% MBL

Wire System 80% MBL 80% MBL

Bar System 75% MBL 75% MBL

MAXIMUM JACKING FORCES RECOMMENDED VALUES

Notes: (1) Australia / New Zealand Standard AS 4672 steel prestressing materials(2) British Standard BS 5896 High Tensile steel wire and strand for prestressing of concrete(3) European Standard prEN 10138-3 prestressing steels Part 3: Strand(4) At 0.2% offset, refer AS 4672(5) At 0.1% offset, refer BS 5896 or prEN 10138-3 as applicable(6) Relaxation after 1000 hrs at 0.7 x breaking load(7) MBL = Minimum Breaking Load (to AS 4672 and BS 5896). Fm = Characteristic Force (to prEN 10138-3)

Standard Nominal

Diameter

mm

Nominal Steel

Area

mm2

Nominal Mass

Kg/lm

Strand

MBL / Fm (7)

kN

Minimum

Proof Load

kN

Strand

Relaxation

%

Modulus of Elasticity

MPa

AS 4672 (1) 7 LR 38.5 0.302 64.3 54.7 (4) 2.0 195 to 215x103

BS 5896 (2) 7 LR 38.5 0.302 64.3 53.4 (5) 2.5 195 to 205x103

WIRE PROPERTIES

SystemBBR VT Cona

CMI

BBR VT Cona

CME

BBR VT Cona

CMBSlab Wire Bar

Anchorage & Jacking Loss (%) 0.8 to 1.2 0.8 to 1.2 0.9 to 1.2 2 (1) 0 to 1 0 to 1

Draw-In Allowance (mm) 6 6 6 6 2 to 3 1 to 2

Duct

Friction Round Steel Duct

Flat Steel Duct

Polyethylene Duct

Greased & Sheathed

0.16 to 0.24

N/A

0.10 to 0.14

N/A

0.16 to 0.24

N/A

0.10 to 0.12

N/A

N/A

N/A

0.06 to 0.12

N/A

0.15 to 0.20

0.20

0.10 to 0.15

N/A

0.12 to 0.16

N/A

0.10 to 0.15

N/A

0.15 to 0.20

N/A

0.10 to 0.15

0.10

Tendon

Wobble

(K)rad/m*

Round Steel Duct 50mm

Round Steel Duct > 50mm

Flat Steel Duct

Greased & Sheathed

0.016 - 0.024

0.008 - 0.016

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

0.016 - 0.024

N/A

0.016

0.008 - 0.012

N/A

N/A

0.008 - 0.016

0.008 - 0.016

N/A

N/A

PRE-STRESSING LOSSES - TYPICAL DATA

Notes: To reduce excess friction, it may be possible to flush the tendon with water or water soluble oil.If the duct or strand has a film or rust, the ducts are full of water, the friction values can increase significantly.(1) Allow for 5% loss in effective jacking force at surface recessed stressing pans.

(*) Tendon wobble values listed are indicative only. Actual wobble is often dependent on construction technique andworkmanship.


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Post-tensioning (PT) is an efficient way of reinforcing concrete while you are building often allowing the construction

of something which might otherwise have been impossible. It can also be combined with other structural materials,

such as steel and masonry structures. PT provides active reinforcement and places the concrete structure under

compression in those regions where load causes tensile stress.

Massive developments in post-tensining over the past decades means that it is now a mainstream component of the

construction industry and is applied in bridges, buildings, arenas, dams, nuclear power stations, wind farms, cryogenic

LNG tanks, silos, wastewater treatment plants, water reservoirs, marine structures, retaining walls, towers and tunnels.

Post-tensioning vs. pre-tensioning

Both post-tensioning and pre-tensioning create prestressed

concrete.

Pre-tensioned systems, however, must be fabricated in

a precast plant and are limited to straight, harped, or

circular tendons. In addition, construction of continuous

structures is very limited with this method.

Post-tensioning, on the other hand, allows almost any

shape to be constructed and is able to match nearly

any design requirement. Internal, bonded, unbonded

and external post-tensioning is usually performed on the

project site and provides superior corrosion protection

features.

Internal vs. external post-tensioning

Tendons installed in the formwork prior to pouring the

concrete are known as internal tendons. External tendons

are placed on the outer surface of concrete structures.

This type of post-tensioning allows access for maintenance

and replacement and is therefore the solution of choice

for bridge enhancements and refurbishments, it can also

be applied to many other types of structure.

3w w w . s t r u c t u r a l s y s t e m s . c o m . a u

POST-TENSIONING


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4 w w w . s t r u c t u r a l s y s t e m s . c o m . a u

Internal bonded vs. unbonded

post-tensioning

Internal bonded post-tensioning systems can

range from a single strand to multiple strands

per tendon. The strands are inserted into a

metal or plastic duct that is then embedded

in the concrete. The duct is then filled with

cementitious grout, creating a bond with the

surrounding concrete. The grout creates an

alkaline environment which ensures corrosion

protection of the prestressing steel.

Unbonded PT differs from bonded post-

tensioning in that it provides each individual

tendon with permanent freedom of movement

relative to the concrete.

Note: Unbonded systems are not typically used in Australia.

Professional installation practice

Post-tensioning and grouting operations

require the highest level of professionalism

which is exactly what the certified BBR PT

specialists and members of the BBR Network

deliver. These well-trained and experienced

staff are continuously educated through

practical and theoretical training courses to

ensure professional execution of PT works. All

Structural Systems operatives are trained under

the Post-Tensioning Institute of Australias

(PTIAs) training programmes.

Installation of the post-tensioning starts

in conjunction with the non-tensionedreinforcement and after the formwork has

been erected. The first step in the process

is to affix the anchorages and to layout the

ducting, then the high tensile steel strands are

installed. Once the concrete is poured and

has attained its transfer strength the tendon

is stressed utilising a hydraulic jack and then

locked off at the anchorage. The anchorage

maintains the applied force in the tendon and

transfers it to the surrounding concrete. The

duct is then filled with a cementitious grout or

flexible corrosion inhibitor. Grouting is carriedout carefully under controlled conditions to

ensure that the whole tendon is completely

filled. Installation can also be performed with

a fully or partially prefabricated tendon.

Key benefits of post-tensioning structures

Greater flexibility of design PT allows highly creative architectural approaches and very demanding geometry

requirements.

Increased deflection control and improved crack control virtually crack-free concrete delivers long term durability

Faster construction program early strength stressing promotes a faster cycle time, allowing the structure to progress

more rapidly. Lower construction material costs PT can decrease the size of a structural member and reduce the quantity of

concrete and steel required for the superstructure.

Reduced environmental impact less material creates fewer carbon emissions in terms of production and transportation.

Reduced construction costs a faster cycle time and decreased amount of material minimise costs.


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1 6 w w w . s t r u c t u r a l s y s t e m s . c o m . a u

Multi-strand post-tensioning is

predominantly used in civil structures

including bridges, silos, tanks and

off-shore structures and is also used

for transfer beams in buildings. It

is a robust and reliable bonded

prestressing system.

BBR VT Cona CMI

The BBR VT CONA CMI post-

tensioning system is a multi-strand

system for all types of internallypost-tensioned applications. The

standard tendon sizes range from 1

to 73 seven-wire prestressing strands.

Larger sizes are also possible and

CONA CMI tendons with 91 strands

have already been used. Most

commonly, 0.6-0.62 (15.2-15.7mm)

strands with a cross-sectional area of

150mm2and a characteristic tensile

strength of 1,860 MPa are used. The

use of 0.5 (12.7mm) strands with a

cross-sectional area of 100mm2and

a characteristic tensile strength of

1,860 MPa is also possible.

The system has been granted

European Technical Approval

in accordance with the testing

procedures contained within ETAG013

and is CE marked.

These tests included static tests,

fatigue test, load transfer and

cryogenic tests.

European Technical Approval

provides clear independent review,

full and complete system testing

to the highest European standard,

quality assurance, and independent

auditing of all system components.

Every product is tested to the

same standard and afterwards an

independent auditor ensures that what

is delivered and installed on site fully

complies with that which was tested.

On completion of the tests, the

approval body evaluated the testresults, drawings, specifications and

the complete system. The package

was then circulated to all member

states of the EU for ratification.

Copies of the BBR VT European

Approval documents are available for

download from www.bbrnetwork.com.

The BBR VT CONA CMI system

has significant advantages over the

previous BBR Cona Multi system

as well as significant competitive

advantage over other ETAG approved

systems. These advantages include:

Less space is required in the

anchor zone which results in lessconcrete, slimmer structures and

less eccentricity in the anchors.

Significantly lower concrete

strength prior to stressing

resulting in shorter construction

cycles.

Less reinforcement in the

anchorage zone resulting in time

and cost savings.

MULTISTRAND

POST-TENSIONING


8/22

Anchorage configuration

The main components in the anchor

zone of the CONA CMI system

are the wedges, anchor head,

trumplate/square plate and trumpet.

In the anchorage zone, the duct is

connected to the trumpet and the

strand bundle is spread out towards

the anchor head, where each strand

is individually locked with BBR

wedges.

For the load transfer to the

concrete, the CONA CMI BT (bearing

trumplate) can be used for tendon

sizes with 02 to 61 strands and the

CONA CMI SP (square plate) can be

used for 01 to 73 strands.

The CONA CMI BT (bearing

trumplate) system makes use of an

advanced and proprietary three plane

load transfer allowing for very small

centre and edge distances at the

anchorages, as well as application of

the full post-tensioning load at very

low concrete strengths. The CONA

CMI SP (square plate) is a system

with a single plane load transfer tothe concrete.

Technical data on the BBRVT CONA

CMI SP system can be found on

pages 24 to 27.

The stressing and fixed

anchorages

The BBR VT CONA CMI anchorages

are available in two types, theseare Type S stressing / active

anchorages and Type F fixed /

passive anchorages. The anchor

heads of the stressing and fixed

anchorages are secured by special

wedge retaining measures and

are protected by a cap during

concreting. For re-stressable and

exchangeable tendons, excess strand

length is required at the anchorage.

The extent of the excess strand

length depends on the jack usedfor re-stressing or releasing and the

strand protruding beyond the anchor

head requires permanent corrosion

protection and an adequate cap.

1 7w w w . s t r u c t u r a l s y s t e m s . c o m . a u

MULTISTRANDPOST-TENSIONING


9/22

Fixed, stressable and movable

couplers

CONA CMI tendons can be coupled

using proprietary Type K overlap

coupler for tendons ranging from

2 to 31 strands (larger sizes on

request) or Type H sleeve coupler

for 1 to 73 strands. Both coupler

types can serve as a stressing /

active anchorage coupler (Type S)

or fixed / passive anchorage coupler

(Type F) bearing against the load

transfer unit or as movable couplers

(Type B) along the length of the

tendon.

In the first stage of construction,

the tendon is installed, stressed and

anchored in the coupler which is

placed in the section joint between

the first and second stage. Next,

the second stage tendon is put in

place and coupling is achieved by

pushing the strands into the already

tensioned Type K anchor head or

by coupling the Type H anchors

heads with a Type H sleeve. In

some countries, it is not permitted

for one section joint to have only

couplers. In this situation, it is

mandatory that at least 30% of

all tendons must be continuous in

order to obtain an even distribution

of the prestressing force in the

structure.

The movable coupler serves to

lengthen unstressed tendons and the

tendon elongation during stressing

is ensured by a cylindrical sheathing

box appropriate for the expected

elongation at the location of the

coupler. Movable couplers may be

used to couple continuity tendons at

the construction joint.

Corrosion protection

The strand bundle is enclosed in

a corrugated round steel or plastic

duct. For special applications, suchas loop tendons smooth round

steel or plastic ducts can be used.

The use of flat steel or plastic

ducts is also possible for smaller

tendon sizes. The filling of the

tendons in bonded applications is

completed using a high performance

grout. For unbonded applications,

the duct can be injected with

grease / wax. The CONA CMI

post-tensioning kits can also be

executed as fully electrically isolatedtendons to provide the highest

possible level of corrosion protection

and inspectability.

(*) Other prestressing strands approved at the place of use, such as strands having a cross-sectional area of 140mm2or 93mm2respectively and / ora characteristic tensile strength lower than 1,860 MPa can be used with the same anchorage components.

Type of strands

Available tendon sizes

BBR VT CONA CMI

System 05 06

Mm 12.5 12.7 15.2 15.7

mm2 93 100 140 150

MPa 1,860 1,860 1,860 1,860

BBR VT CONA CMI

Strands Characteristic ultimate resistance of tendon (kN)

System 05 06

Mm 12.5 12.7 15.2 15.7

01 173 186 260 279

02 346 372 521 558

03 519 558 781 837

04 692 744 1,042 1,116

05 1,302 1,395

06 1,562 1,674

07 1,211 1,302 1,823 1,953

08 2,083 2,232

09 2,344 2,511

12 2,076 2,232 3,125 3,348

13 3,385 3,627

15 3,906 4,185

16 4,166 4,464

19 3,287 3,534 4,948 5,301

22 5,729 6,138

24 6,250 6,696

25 6,510 6,975

27 7,031 7,533

31 5,362 5,766 8,072 8,649

37 9,635 10,323

42 10,937 11,718

43 11,197 11,997

48 12,499 13,392

55 14,322 15,345

61 15,884 17,019

69 17,968 19,251

73 19,009 20,367

Tendon sizes



10/22

Technicaldataofan

chorages4strandsto12strands

BBRVTCONACMI

04

07

09

12

Strandarrangement

Strand

mm2

140

150

140

150

140

150

140

150

Crosssection

alarea

mm2

560

600

980

1,050

1,260

1,350

1,68

0

1,800

Charact.tensilestrength

Rm

MPa

1,770

1,860

1,770

1,860

1,770

1,860

1,770

1,860

1,77

0

1,860

1,770

1,860

1,770

1,860

1,770

1,860

Charact.max

imumf

orce

Fm

kN

992

1,040

1,064

1,116

1,736

1,820

1,862

1,953

2,23

2

2,340

2,394

2,511

2,976

3,120

3,192

3,340

Helixandad

ditionalreinforcement

Min.concretestrength(cyl.)

Fcm.0

MPa

19

23

28

31

35

19

23

28

31

35

19

23

28

31

35

19

23

28

31

35

Helix

Outerdiameter

mm

180

150

150

150

230

200

200

180

180

280

230

230

230

330

2

80

280

260

260

Bardiameter

mm

14

12

12

12

14

14

14

14

14

14

14

14

14

14

14

14

14

14

Length,appr

ox.

mm

182

181

216

216

232

232

277

277

277

282

282

337

337

332

3

32

332

382

282

Pitch

mm

50

50

60

60

50

50

60

60

60

50

50

60

60

50

50

50

50

50

Numberofp

itches

4

4

4

4

5

5

5

5

6

6

6

6

6

7

7

7

8

6

Distance

E

mm

15

15

15

15

18

18

18

18

18

20

20

20

20

20

20

20

20

20

Additionalre

inforcement

Numberofstirrups

3

3

4

3

5

4

3

3

4

5

5

4

4

7

6

5

5

6

Bardiameter

mm

12

12

10

10

14

14

14

14

14

12

14

14

14

12

14

16

16

14

Spacing

mm

60

55

40

50

55

60

65

65

60

60

55

60

60

60

55

70

65

50

Distancefrom

anchorplate

F

mm

30

30

30

30

33

33

33

33

33

35

35

35

35

35

35

35

35

35

Outerdimen

sions

BxB

mm

220

200

180

170

290

270

240

230

220

330

300

280

260

390

3

50

320

310

290

Centre

andedgespacing

Min.centrespacing

ac,bc

mm

235

215

195

190

310

285

260

250

240

350

320

295

280

405

3

70

340

325

310

Min.edgedistance(plusc)

ae

,be

mm

110

100

90

85

145

135

120

115

110

165

150

140

130

195

1

75

160

155

145

Dimens

ionsofanchorages

Anchordiam

eter

DA

mm

130

170

225

Anchorlengt

h

LA

mm

327

454

743

627

CouplerFKd

iameter

DFK

mm

185

205

240

CouplerFKle

ngth

LFK

mm

945

1,152

1,664

1,435

Stressingandfixedanchorage

Fixedcou

plerFK

Centreandedgedistance



BT


11/22


Technicaldataofanchorages15strandsto24strands

BBRVTCON

ACMI

15

19

22

24

Strandarran

gement

Strand

mm2

140

150

140

150

140

150

14

0

150

Crosssectionalarea

mm2

2,100

2,250

2,660

2,850

3,080

3,300

3,3

60

3,600

Charact.ten

silestrength

Rm

MPa

1,770

1,860

1,770

1,860

1,770

1,860

1,770

1,860

1,77

0

1,860

1,770

1,860

1,770

1,860

1,770

1,860

Charact.ma

ximumf

orce

Fm

kN

3,720

3,900

3,990

4,185

4,712

4,940

5,054

5,301

5,45

6

5,720

5,852

6,138

5,952

6,240

6,384

6,696

Helixanda

dditionalreinforcement

Min.concre

testrength(cyl.)

Fcm.0

MPa

19

23

28

31

35

19

23

28

31

35

19

23

28

31

35

19

23

28

31

35

Helix

Outerdiame

ter

mm

375

330

330

280

280

420

360

360

330

330

475

420

360

360

330

475

430

420

360

360

Bardiamete

r

mm

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

Length,approx.

mm

432

432

382

432

332

457

457

432

432

382

482

482

482

482

382

532

532

482

532

432

Pitch

mm

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

Numberofp

itches

9

9

8

9

7

9.5

9.5

9

9

8

10

10

10

10

8

11

11

10

11

9

Distance

E

mm

27

27

27

27

27

27

27

27

27

27

31

31

31

31

31

32

32

32

32

32

Additionalr

einforcement

Numberofs

tirrups

7

6

5

6

5

7

7

7

7

7

8

7

7

7

8

7

7

7

7

8

Bardiamete

r

mm

14

16

16

16

16

16

16

16

16

16

16

20

20

20

16

20

20

20

20

16

Spacing

mm

60

65

65

55

60

65

65

65

65

65

65

75

70

65

55

80

80

70

65

55

Distancefro

ma

nchorplate

F

mm

42

42

42

42

42

42

42

42

42

42

46

46

46

46

46

47

47

47

47

47

Outerdimen

sions

BxB

mm

440

400

360

350

330

490

450

410

390

370

530

480

440

420

400

560

510

460

440

420

Centreandedgespacing

Min.centre

spacing

ac,bc

mm

455

415

380

365

345

510

465

425

410

390

550

500

460

440

420

575

525

480

460

435

Min.edgedistance(plusc)

ae

,be

mm

220

200

180

175

165

245

225

205

195

185

265

240

220

210

200

280

255

230

220

210

Dimensionsofanchorages

Anchordiam

eter

DA

mm

280

310

325

Anchorleng

th

LA

mm

858

744

946

1,067

CouplerFKd

iameter

DFK

mm

290

310

340

CouplerFKlength

LFK

mm

1,824

1,600

1,821

2,264


FixedcouplerFK


BT


12/22




FixedcouplerFK


Techn

icaldataofan

chorages15strandsto24strands

BBRVTCON

ABT

27

31

37

42

Strandarrang

ement

Strand

mm2

140

150

140

150

140

150

14

0

150

Crosssectionalarea

mm2

3,7

80

4,0

50

4,3

40

4,6

50

5,1

80

5,5

50

5,8

80

6,3

00

Charact.tens

ilestrength

Rm

MPa

1,770

1,860

1,770

1,860

1,770

1,860

1,770

1,860

1,770

1,860

1,770

1,860

1,770

1,860

1,770

1,860

Charact.

maximum

force

Fm

kN

6,6

96

7,0

20

7,1

82

7,5

33

7,6

88

8,0

60

8,2

46

8,6

49

9,176

9,6

20

9,8

42

10,3

23

10,4

16

10,9

20

11,1

72

11,7

18

Helixandadditionalre

inforcement


Fcm.0

Mpa

19

23

28

31

35

19

23

28

31

35

19

23

28

31

35

19

23

28

31

35

Helix

Outerdiameter

mm

520

475

430

420

360

560

520

475

430

430

-

580

580

580

580

-

630

630

630

630

Bardiameter

mm

14

14

14

14

14

14

14

14

14

14

-

16

16

16

16

-

16

16

16

16

Length,approx

mm

532

532

532

427

432

532

532

582

467

432

-

533

533

533

533

-

583

583

583

583

Pitch

mm

50

50

50

40

50

50

50

50

40

50

-

50

50

50

50

-

50

50

50

50

Numberofp

itches

11

11

11

11

9

11

11

12

12

9

-

11

11

11

11

-

12

12

12

12

Distance

E

mm

35

35

35

35

35

35

35

35

35

35

-

40

40

40

40

-

45

45

45

45

Additionalre

i

nforcement

Numberofs

tirrups

8

7

7

7

8

8

8

8

8

8

-

9

9

9

9

-

10

10

10

10

Bardiameter

mm

20

20

20

20

20

20

20

20

20

20

-

20

20

20

20

-

20

20

20

20

Spacing

mm

80

80

75

70

60

85

75

70

65

60

-

70

70

70

70

-

70

70

70

70

Distance

fromanchorplate

F

mm

50

50

50

50

50

50

50

50

50

50

-

50

50

50

50

-

55

55

55

55

Outerdimensions

BxB

mm

590

540

490

470

440

630

580

530

500

480

-

660

660

660

660

-

720

720

720

720

Centreandedgespac

ing

Min.centre

spacing

ac,bc

mm

610

555

505

485

460

650

595

545

520

495

-

680

680

680

680

-

735

735

735

735

Min.edged

istance

(plus

c)

ae

,b

e

mm

295

280

245

235

220

315

290

265

250

240

-

330

330

330

330

-

360

360

360

360

Dimens

i

onsofanchorages

Anchordiam

eter

DA

mm

360

400

425

Anchorlength

LA

mm

1,090

975

1,065

1,200

CouplerFK

diameter

DFK

mm

390

Referto

StructuralSystems

forc

ouplerdetails

CouplerFK

length

LFK

mm

2,466

2,242


13/22



Fixedco

uplerFK


Techn

icaldataofanchorages15strandsto24strands

BBRVTCONABT

48

55

61

Strandarrangement

Strand

mm2

140

150

140

1

50

140

150

Crosssectionalarea

mm2

6,7

20

7,2

00

7,7

00

8,250

8,5

40

9,1

50

Charact.tens

ilestrength

Rm

MPa

1,770

1,860

1,7

70

1,860

1,770

1,860

1,770

1,860

1,770

1,860

1,770

1,860

Charact.

maximum

force

Fm

kN

11,9

04

12,4

80

12,

768

13,3

92

13,6

40

14,3

00

14630

15,3

45

15,1

28

15,8

60

16,2

26

17

,019

Helixandadd

itionalre

inforcement


Fcm.0

Mpa

19

23

28

31

35

19

23

28

31

35

19

23

28

31

35

Helix

Outerdiameter

mm

-

710

710

710

710

-

780

780

780

780

-

850

850

850

850

Bardiameter

mm

-

16

16

16

16

-

20

20

20

20

-

20

20

20

20

Length,approx

mm

-

633

633

633

633

-

760

760

760

760

-

790

790

790

790

Pitch

mm

-

50

50

50

50

-

60

60

60

60

-

60

60

60

60

Numberofpitches

-

13

13

13

13

-

13

13

13

13

-

14

14

14

14

Distance

E

mm

-

45

45

45

45

-

50

50

50

50

-

55

55

55

55

Additionalre

inforcement

Numberofstirrups

-

11

11

11

11

-

11

11

11

11

-

12

12

12

12

Bardiameter

mm

-

20

20

20

20

-

20

20

20

20

-

20

20

20

20

Spacing

mm

-

70

70

70

70

-

75

75

75

75

-

75

75

75

75

Distance

fromanchorplate

F

mm

-

55

55

55

55

-

55

55

55

55

-

60

60

60

60

Outerdimensions

BxB

mm

-

790

790

790

790

-

860

860

860

860

-

920

920

920

920

Centreandedgespac

i

ng

Min.centre

spacing

ac,bc

mm

-

805

805

805

805

-

875

875

875

875

-

940

940

940

940

Min.edge

distance

(plus

c)

ae

,b

e

mm

-

395

395

395

395

-

430

430

430

430

-

460

460

460

460

Dimens

ionsofanchorages

Anchordiameter

DA

mm

485

485

520

Anchorlength

LA

mm

1,435

1,315

1,490

CouplerFK

diameter

DFK

mm

Referto

StructuralSystemsfor

couplerdetails

CouplerFK

length

LFK

mm


14/22



Stressinganchoragerecessdetails

Plastic

trumpets

Stran

d

Size

BBR

VTCONACMIBT

15.2mm

/

15.7m

m

Anchorageunit

Maxno.ofstrands

40604

70607

90609

120612

150615

190619

220622

240624

270627

310631

370637

420642

480648

550655

610661

Dimens

ions

RecessInner

RecessOuter

RecessDepth

200x200

250x250

130

240x240

290x290

135

295x295

350x350

140

295x295

350x350

140

350x350

400x400

160

350x350

400x400

160

380x380

420x420

170

430x430

480x480

180

430x430

480x480

180

430x430

480x480

185

470x470

520x520

195

495x495

545x545

205

555x555

605x605

215

555x555

605x605

225

590x590

640x640

230

Bearingtrumplates

BBR

VTCONACMIBT

Noofstrands

04

07

09

12

15

19

22

24

27

31

37

42

48

55

61

Bearing

trumplate

DiameterP

(mm)

130

170

225

225

280

280

310

325

360

360

400

425

485

485

520

HeightHP

(mm)

120

128

150

150

195

195

206

227

250

250

275

590

340

340

350

HoleDiameter(mm)

70

90

127

127

160

160

180

205

205

205

225

239

265

265

297

TrumpettypeA

TrumpettypeK

Bearingtrumplate

Anchorhead

CouplerheadtypeK

Anchorandcouplerheads

BBR

VTCONACMIBT

Noofstrands

04

07

09

12

15

19

22

24

27

31

37

42

48

55

61

Anch

or

head

DiameterA

(mm)

100

130

160

160

200

200

225

240

255

255

285

300

325

335

365

HeightHA1

(mm)

50

55

60

65

75

85

95

100

105

110

120

130

140

150

155

Coup

ler

head

K

DiameterK

(mm)

185

205

240

240

290

290

310

340

390

390

RefertoStructuralSystemsOffice

forH

coupler

details

HeightHK

(mm)

85

85

90

90

90

95

105

120

125

130

BBR

VTCONACMIBT

Noofstrands

04

07

09

12

15

19

22

24

27

31

37

42

48

55

61

TrumpetA

DiameterTA

(mm)

72

88

127

127

153

153

170

191

191

191

219

229

254

254

278

LengthLTA

(mm)

230

328

623

509

694

580

715

871

871

757

1,060

1,060

1,244

1,244

1,290

TrumpetK

DiameterTK

(mm)

185

203

240

275

275

305

330

375

375

375


forH

coupler

details

LengthLTK

(mm)

539

640

845

730

890

775

840

1,090

1,265

1,150


15/22


BBRVTCON

ACMISP

0406

0706

1206

Strandarran

gement

7-wirep

restressingsteelstrand

Nomina

ldiameter15.7mm..Nominalcrosssectio

n150mm2..Maximumc

haracteristictensilestrength1,860MPa1)

Tendon

Crosssectionalarea

AP

m

m2

600

1,050

1,800

Charact.valueofmax.

force

Fpk

k

N

1,116

1,953

3,348

Charact.valueof0.1%proofforce

Fp0.1

k

k

N

984

1,722

2,952

Max.prestressingforce

0.90Fp0.1

k

k

N

886

1,550

2,657

Max.overstressingforce

0.95Fp0.1

k

k

N

935

1,636

2,804

Minimu

mc

oncretestrength/Helix/AdditionalR

einforcement/Centreandedgespacing/

Steelplatedimensions

Min.concre

testrength

Cube

fcm.0

M

Pa

26

28

34

38

4

3

46

26

28

34

3

8

43

46

26

28

3

4

38

43

46

Cylinder

fcm.0

M

Pa

21

23

28

31

3

5

38

21

23

28

3

1

35

38

21

23

2

8

31

35

38

Helix

Outerdiameter

m

m

195

190

165

150

145

140

260

255

220

210

195

190

325

320

290

280

270

260

Bardiamete

r

m

m

10

10

10

10

1

0

10

10

10

12

1

2

12

12

12

12

1

2

14

14

14

Length,approx.

m

m

190

190

168

168

168

168

258

258

237

237

212

212

327

327

312

289

289

239

Pitch

m

m

45

45

45

45

4

5

45

45

45

50

5

0

50

50

45

45

5

0

50

50

50

Numberofpitches

5

5

4.5

4.5

4

.5

4.5

6.5

6.5

5.5

5

.5

5

5

8

8

7

6.5

6.5

5.5

Distance

E

m

m

25

25

25

25

2

5

25

35

35

35

3

5

35

35

35

35

3

5

35

35

35

Additionalr

einforcement

Numberofstirrups

4

3

5

4

4

4

5

4

5

5

5

4

7

6

7

6

6

6

Bardiamete

r3)

m

m

10

10

10

10

1

0

10

12

12

12

1

2

12

12

14

14

1

6

16

16

16

Spacing

m

m

190

190

168

168

168

168

70

85

60

6

0

55

70

55

55

5

5

60

60

55

Distancefro

ma

nchorplate

F

m

m

45

45

45

45

4

5

45

55

55

55

5

5

55

55

55

55

5

5

55

55

55

Min.outerd

imensions

BxB

m

m

215

210

190

180

170

165

295

280

260

250

235

225

385

375

345

325

310

300


Min.centre

spacing

ac,bc

m

m

235

230

210

200

190

185

315

300

280

270

255

245

410

395

365

345

330

320

Min.edged

istance

ae

,be

m

m

110

105

95

90

8

5

85

150

140

130

125

120

115

195

190

175

165

155

150

Steelplatedimensions2)

Sidelength

SSP

m

m

155

155

155

155

150

150

205

205

205

200

195

195

265

265

265

260

255

250

Thickness

TSP

m

m

25

25

25

25

2

5

25

35

35

35

3

5

35

35

35

35

3

5

35

35

35

Notes:

c=concretecover

1)=Prestressingstrandwithnominaldiamete

rof15.3mm,crosssectionalareaof140mm2

orwithcharacteristictensilestrengthbelow

1,860MPamayalsobeused

2)=Thesteelplatedimensionsareminimum

values,thereforelargerorthickerplatesmay

beused

3)=Bardiameterof14mm

canbereplaced

by16mm

HoleDiameter

m

m


16/22



BBRVTCON

ACMISP

1906

2206

3106

Strandarran

gement

7-wirep

restressingsteelstrand

Nomina

ldiameter15.7mm..Nominalcrosssectio

n150mm2..Maximumc


Tendon

Crosssectionalarea

AP

m

m2

2,850

3,300

4,650

Charact.valueofmax.

force

Fpk

k

N

5,301

6,138

8,649


Fp0.1

k

k

N

4,674

5,412

7,626


0.90Fp0.1

k

k

N

4,207

4,871

6,863


0.95Fp0.1

k

k

N

4,440

5,141

7,245

Minimu

mc

oncretestrength/Helix/AdditionalR

einforcement/Centreandedgespacing/

Steelplatedimensions

Min.concre

testrength

Cube

fcm.0

M

Pa

26

28

34

38

4

3

46

26

28

34

3

8

43

46

26

28

3

4

38

43

46

Cylinder

fcm.0

M

Pa

21

23

28

31

3

5

38

21

23

28

3

1

35

38

21

23

2

8

31

35

38

Helix

Outerdiameter

m

m

435

410

380

350

340

340

460

430

400

360

350

350

560

540

480

430

430

430

Bardiamete

r

m

m

16

16

16

16

1

6

16

16

16

16

1

6

16

16

16

16

1

6

16

16

16

Length,approx.

m

m

391

391

391

366

341

291

441

441

416

391

366

316

516

516

466

466

416

391

Pitch

m

m

50

50

50

50

5

0

50

50

50

50

5

0

50

50

50

50

5

0

50

50

50

Numberofpitches

8.5

8.5

8.5

8

7

.5

6.5

9.5

9.5

9

8

.5

8

7

11

11

1

0

10

9

8.5

Distance

E

m

m

50

50

50

45

4

5

45

55

55

55

5

5

55

55

60

60

6

0

60

60

60

Additionalr

einforcement

Numberofstirrups

7

6

9

8

7

7

7

6

9

8

8

7

8

7

1

0

9

8

8

Bardiamete

r3)

m

m

14

16

16

16

1

6

16

16

16

16

1

6

16

16

20

20

2

0

20

20

20

Spacing

m

m

70

85

50

55

6

0

55

80

80

55

6

0

55

55

80

95

6

0

65

70

65

Distancefro

ma

nchorplate

F

m

m

75

75

75

75

7

5

75

75

75

75

7

5

75

75

80

80

8

0

80

80

80

Min.outerd

imensions

BxB

m

m

490

470

435

415

395

385

530

510

470

445

425

415

630

605

560

535

515

500


Min.centre

spacing

ac,bc

m

m

510

490

455

435

415

405

550

530

490

465

445

435

650

625

580

555

535

520

Min.edged

istance

ae

,be

m

m

245

235

220

210

200

195

265

255

235

225

215

210

315

305

280

270

260

250

Steelplatedimensions2)

Sidelength

SSP

m

m

340

340

335

325

320

310

370

370

365

355

345

345

440

440

435

425

420

415

Thickness

TSP

m

m

50

50

50

45

4

5

45

55

55

55

5

5

55

55

60

60

6

0

60

60

60

Notes:

c=concretecover

1)=Prestressingstrandwithnominaldiamete

rof15.3mm,crosssectionalareaof140mm2

orwithcharacteristictensilestrengthbelow

1,860MPamayalsobeused

2)=Thesteelplatedimensionsareminimum

values,thereforelargerorthickerplatesmay

beused

3)=Bardiameterof14mm

canbereplaced

by16mm

HoleDiameter

m

m


17/22


Notes:

c=concretecover

1)=

Prestressingstrandwithnominaldiameterof

15.3mm,crosssectionalareaof140mm2

or

withcharacteristictensilestrengthbelow

1,86

0MPamayalsobeused

2)=

Thesteelplatedimensionsareminimum

valu

es,thereforelargerorthickerplatesmaybe

used

3)=

Bardiameterof14mm

canbereplacedby1

6mm

BBRVTCONACMISP

4206

5506

6106

Strandarrangement

7-wireprestressingsteelstrand

Nominaldiam

eter15.7mm..Nominalcrosssection15

0mm2..Maximumc


Tendon

Crosssectional

area

AP

mm2

6,300

8,250

9,150

Charact.valueofmax.

force

Fpk

kN

11,718

15,345

17

,019


Fp0.1

k

kN

10,332

13,530

15

,006


0.90Fp0.1

k

kN

9,299

12,177

13

,505


0.95Fp0.1

k

kN

9,815

12,854

14

,256

Minimumco

ncretestrength/Helix/AdditionalReinforcement/Centreandedgespacing/St

eelplatedimensions

Min.concretestrength

Cube

fcm.0

MPa

26

28

34

38

43

46

26

28

34

38

43

46

26

28

34

38

43

46

Cylinder

fcm.0

MPa

21

23

28

31

35

38

21

23

28

31

35

38

21

23

28

31

35

38

Helix

Outerdiameter

mm

660

660

660

660

660

660

790

790

790

790

790

790

860

860

860

860

860

860

Bardiameter

mm

16

16

16

16

16

16

25

25

25

25

25

25

25

25

25

25

25

25

Length,approx

.

mm

616

616

616

616

616

616

940

940

940

940

940

940

985

985

985

985

985

985

Pitch

mm

50

50

50

50

50

50

70

70

70

70

70

70

60

60

60

60

60

60

Numberofpitc

hes

13

13

13

13

13

13

14

14

14

14

14

14

17

17

17

17

17

17

Distance

E

mm

75

75

75

75

75

75

90

90

90

90

90

90

90

90

90

90

90

90

Additionalrein

forcement

Numberofstirrups

11

11

11

11

11

11

12

12

12

12

12

12

13

13

13

13

13

13

Bardiameter3)

mm

20

20

20

20

20

20

16

16

16

16

16

16

16

16

16

16

16

16

Spacing

mm

75

75

75

75

75

75

70

70

70

70

70

70

70

70

70

70

70

70

Distancefromanchorplate

F

mm

95

95

95

95

95

95

110

110

110

110

110

110

110

110

110

110

110

110

Min.outerdim

ensions

BxB

mm

745

745

745

745

745

745

885

885

885

885

885

885

940

940

940

940

940

940

Centreandedg

espacing

Min.centrespacing

ac,bc

mm

765

765

765

765

765

765

905

905

905

905

905

905

960

960

960

960

960

960

Min.edgedista

nce

ae

,be

mm

375

375

375

375

375

375

445

445

445

445

445

445

470

470

470

470

470

470

Steelplatedim

ensions2)

Sidelength

SSP

mm

510

510

510

510

510

510

595

595

595

595

595

595

620

620

620

620

620

620

Thickness

TSP

mm

75

75

75

75

75

75

90

90

90

90

90

90

90

90

90

90

90

90

HoleDiameter

mm


18/22


Stressinganchoragerecessdetails

Anchoran

dcouplerHeads

Trumpets

Strand

Size

BBR

VTCONA

CMISP

15.2mm

/

15.7mm

Anchorageunit

Max

no.ofstrands

40604

70607

90609

120612

150615

190619

220622

240624

270627

31

06

3

1

370637

420642

480648

550655

610661

Standard

Dimensions

Recess-Inner

Recess-Outer

Recess-Depth

225x225

275x275

130

275x275

325x325

135

325x325

375x375

140

335x335

385x385

140

390x390

440x440

160

410x410

460x460

160

440x440

490x490

170

460x460

510x510

180

485x485

535x535

180

510x510

560x560

18

5

550x550

600x600

195

580x580

630x630

205

620x620

670x670

215

665

x665

715

x715

2

15

690x690

740x740

230

BBR

VTC

ONACMISP

N

oofstrands

04

07

09

12

15

19

22

24

27

3

1

37

42

48

55

61

Anchor

Head

DiameterA

(mm)

100

13

0

160

160

200

20

0

225

240

255

255

285

300

325

335

365

HeightHA

(mm)

50

55

60

65

75

85

95

100

105

110

120

130

140

150

155

Coupler

HeadK

DiameterK

(mm)

185

20

5

240

240

290

29

0

310

340

390

390


forcouplerdetails

HeightHK

(mm)

85

85

90

90

90

95

105

120

125

130

N

oofstrands

04

07

09

12

15

19

22

24

27

3

1

37

42

48

55

61

TrumpetAS

P

(steel)

DiameterTA

(mm)

70

90

128

128

160

16

0

180

195

210

210

230

245

270

2

70

305

LengthLTA

(mm)

421

40

1

739

739

894

89

4

1,017

1,196

1,150

1,1

50

1,270

1,315

1,506

1,506

1,684

TrumpetK

(plastic)

DiameterTK

(mm)

185

20

3

240

240

275

27

5

305

330

375

375

219

229

254

2

54

278

LengthLTK

(mm)

539

64

0

845

730

890

77

5

840

1,090

1,265

1,1

50

1,060

1,060

1,244

1,244

1,290

TrumpettypeA

SP

TrumpettypeK

Anchorhead

SquarePlate

CouplerheadtypeK



19/22


Dead end anchorages bulb type and swage type

Tendon curvature

A straight portion L adjacent to the anchorage must be observed to limit the screw pull of the strand bundle against

the anchorage. Reduction may be allowed in certain specific instances.

Tendon properties

Notes: Duct sizes are indicative, use larger duct sizes for long tendons or aggressive profiles. Duct couplers are overall +10mm larger than duct ID.

Notes: Swage type dead ends recommended for

1906 tendons and larger. Local zone and several zone anchoragereinforcement is normally required for all unittypes and details are usually determined bythe designer to suit the specific application.

Tendon

Unit

Maximum

Number of

Strands

Maximum

Steel Duct

ID/OD

mm

Minimum

Steel Duct

ID/OD

mm

Minimum radii of

curvature / minimum

straight portion

m

Tendon minimum breaking load to prEN 10138-3

kN

15.2 regular 15.7 regular 15.2 super 15.7 super

406 4 45/50 45/50 3.0/0.8 992 1064 1040 1116

709 7 60/65 55/60 4.0/0.9 1736 1862 1820 1953

906 9 70/75 60/65 4.5/1.0 2232 2394 2340 2511

1206 12 80/85 70/75 5.2/1.0 2976 3192 3120 3348

1506 15 90/95 80/85 5.8/1.25 3720 3990 3900 4185

1906 19 100/105 90/95 6.5/1.25 4712 5054 4940 5301

2206 22 105/110 95/100 7.0/1.4 5456 5852 5720 6138

2406 24 110/115 100/105 7.3/1.6 5952 6384 6240 6696

2706 27 120/125 105/110 7.7/1.6 6696 7182 7020 7533

3106 31 130/135 110/115 8.4/1.6 7688 8246 8060 8649

3706 37 140/145 125/130 9.2/2.0 9176 9842 9657 10323

4206 42 150/155 135/140 9.6/2.1 10416 11172 10962 11718

4806 48 160/165 145/150 10.2/2.4 11904 12768 12528 13392

5506 55 175/185 155/160 11.3/2.4 13640 14630 14355 15345

6106 61 180/185 160/165 11.7/2.5 15128 16226 15921 17019

Strand size Anchorage point Bulb type anchorage (mm) Swage type anchorage (mm)

A B C D E F

15.2mm and 15.7mm 0406 150 150 600 150 150 250

0706 200 170 600 200 200 350

0906 300 300 800 250 250 450

1206 350 300 1,000 250 250 500

1506 350 350 1,000 300 300 500

1906 450 350 1,000 300 300 500

2206 450 450 1,000 300 300 500

2406 450 450 1,000 300 300 600

2706 500 450 1,100 350 350 650

3106 550 475 1,100 350 350 650

3706 N/A N/A N/A 400 350 800

4206 N/A N/A N/A 400 350 850

4806 N/A N/A N/A 550 475 1000

5506 N/A N/A N/A 550 475 1000

6106 N/A N/A N/A 550 550 1200

Bulb type dead end Swage type dead end

Note: For swage

type,strand length F

shall be debonded (using

grease or similar).


20/22


Sheathing

andcorrosionprotection

Forconventionalapplications,corrugatedgalvanisedsteelductsareusedwithaw

allthicknessof

0.3mm.For

applicationsrequiringenhancedco

rrosionprotectionandimprovedfatigueresistance

ofthetendons,useofcorrugatedplasticduct

isrecommended.Thisfullyencaps

ulated,watertight

system

offe

rssuperbcorrosionprotection,and

theplasticducteliminatesfretting

fatiguebetween

thestrandandduct.

It

alsoprovidesreduced

ductfriction.Allductsaremanufac

turedinavariety

ofstandard

lengthsandarecoupledonsite.S

teelductsareavailableindiametersrangingfrom

40mm

to160mm

inapproximately5mm

increm

ents.

Notes:Detailsbasedonjackshaving200mm

working

stroke.Alternativejacksmaybeavailableand/ormoresuitable.ContactSSLforfurtherdetails.Checkjacksizeandavailabilitywithyo

urlocalSSLoffice.

Notes:

Ch

eckwithSSLofficeforavailabilityandleadtimeforstandard

and/oralternativepolyeth

yleneductsizes.

Ad

dforductcouplersaboveductOD.

Spacerequ

irementsforstressingjacks

Tendonsh

eathingandcorrosionprotection

polyethyleneductdetails

Strandbundleathigh

pointoftendon

Strandbun

dleatlow

pointof

tendon

Polyethyleneduct

Galv.steelduct

TendonType

DuctDimensions(mm)

15.2m

m

/15.7mm

OD

ID

Wall

Thickness

0406

59

48

2.0

0706

73

59

2.0

1206

101

85

2.5

1906

116

100

3.0

3106

135

115

3.5

3706

152

129

4.0

Notes:

eisindicativeonlyand

dependsonactualductID

andnumbe

rofstrandsin

tendon.

Eccentricityof

tendons

TendonType

Eccentricitye

mm

0406

10

0706

11

1206

14

1906

15

2206

21

3106

25

3706

23

4206

25

4806

27

5506

29

6106

32


Strands

ize

15.2mm

/15.7mm

Tendonunit

0406

0706

0906

1206

1506

1906

2206

2406

2706

31

06

3706

4206

4806

5

506

6106

Jackunit

J110

J200

J300

J300

J600

J600

J600

J630

J630

J6

30

J900

J900

J1200

J1

200

J2200

Dimensions

(mm)

ABCEF

710

1400

250200595

75

0

1,500

30

0

23

0

62

0

810

1,600

330260675

810

1,600

330260675

1,200

2,400

500400

1,100

1,2

00

2,4

00

50

0

40

0

1,1

00

1,200

2,400

500400

1,100

1,000

2,000

600500950

1,000

2,000

600500950

1,0

00

2,0

00

600

500

950

1,400

2,800

650550

1,300

1,400

2,800

650550

1,300

1,500

3,000

650550

1,400

1,500

3,000

650550

1,400

1,650

3,300

680580

1,500


21/22


22/22

Structural Systems operate

throughout Australia,

the Middle East,South Africa

and the United Kingdom.

For more information on

Structural Systems and the many

services we provide, visit:

www.structuralsystems.com.au

10.20

11

ssl pt manual 2011 multi

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