dsi dywidag eta-13-0979 dywidag external and internal unbonded strand pt-system

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    Post-Tensioning SystemsEuropean Technical Approval

    DYWIDAG External and InternalUnbonded Strand Post-

    Tensioning System for 3 to 37

    Strands (140 and 150 m2)

    Validity

    27 June 2013 - 27 June 2018

    ETA-13/0979

    European Organisation for Technical Approvals

    Europische Organisation fr Technische Zulassungen

    Organisation Europenne pour lAgrment Technique

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    Organisation pour l'Agrment Technique Europen

    European Organisation for Technical Approvals

    Service d'tudes sur les transports, les

    routes et leurs amnagements110 rue de Paris

    77171 Sourdun

    Tel : + 33 (0)1 60 52 31 31Fax : + 33 (0)1 60 52 31 69

    MEMBRE DE L'EOTA

    MEMBER OF EOTA

    European Technical Approval ETA-13/0979(English language translation, the original version is in French language)

    Nom commercial :

    Trade name :Procd de prcontrainte extrieur DYWIDAGDYWIDAG External and Internal unbonded Strand

    Post-Tensioning System

    Dtenteur de l'ATE :

    Holder of approval :

    DYWIDAG-Systems International GmbH

    Destouchesstrasse 68

    80796 Mnchen

    DEUTSCHTLAND

    Type gnrique et utilisation prvue duproduit de construction :

    Generic type and use of construction

    product :

    Procd de prcontrainte par post-tensionDYWIDAG avec cble extrieur et intrieur non

    adhrent de 3 37 torons (140 et 150 m2).

    DYWIDAG External and Internal unbonded Strand

    Post-Tensioning System for 3 to 37 Strands (140

    and 150 m2).

    Valid from:

    to:

    27.06.2013

    27.06.2018

    Producteur du procd :Kit manufacturer :

    DYWIDAG-Systems International GmbHMax-Planck-Ring 1

    40764 Langenfeld

    DEUTSCHLAND

    Le prsent agrment technique europen

    contient :

    This European Technical Approval

    contains :

    50 pages comprenant 27 pages de dessins faisant

    partie intgrante du document.

    50 pages including 27 pages of drawings which

    form an integral part of the document.

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    European Technical Approval n 13/0979 Page 2 of 50

    Version of the 27thJune 2013

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    European Technical Approval n 13/0979 Page 3 of 50

    Version of the 27thJune 2013

    CONTENTS

    A LEGAL BASES AND GENERAL CONDITIONS..............................................................4

    B SPECIFIC CONDITIONS OF THE EUROPEAN TECHNICAL APPROVAL .................5

    B.1 DEFINITION OF PRODUCTS AND INTENDED USE.............................................5

    B.1.1 Definition of Products ...........................................................................................5

    B.1.2 Intended use...........................................................................................................6

    B.1.3 Working life ..........................................................................................................6

    B.2 CHARACTERISTICS OF PRODUCT AND METHODS OF VERIFICATION........7

    B.2.1 Characteristics of product......................................................................................7

    B.2.2 Methods of verification .........................................................................................9

    B.3 EVALUATION AND ATTESTATION OF CONFORMITY AND CE MARKING16

    B.3.1 Attestation of System Conformity.......................................................................16

    B.3.2 Responsibilities ...................................................................................................16B.3.3 CE Marking .........................................................................................................19

    B.4 ASSUMPTIONS UNDER WHICH THE FITNESS OF THE PRODUCT FOR THE

    INTENDED USE WAS FAVOURABLY ASSESSED .........................................................20

    B.4.1 Manufacturing .....................................................................................................20

    B.4.2 Installation...........................................................................................................20

    B.5 PACKAGING, TRANSPORT, AND STORAGE......................................................23

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    European Technical Approval n 13/0979 Page 4 of 50

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    A LEGAL BASES AND GENERAL CONDITIONS

    A.1 This European Technical Approval is issued by Stra in accordance with:

    Council Directive 89/106/EEC of 21 December 1988 on the approximation of

    laws, regulations and administrative provisions of Member States relating toconstruction products1, modified by Council Directive 93/68/EEC2 and Regulation

    (EC) N 1882/2003 of the European Parliament and of the Council3 ;

    dcret n92-647 du 8 juillet 19924 concernant l'aptitude l'usage des produits de

    construction ;

    Common Procedural Rules for Requesting, Preparing and the Granting of

    European Technical Approvals set out in the Annex to Commission Decision

    94/23/EC5 ;

    ETAG 013, Edition June 2002, Post-Tensioning Kits for Prestressing ofStructures.

    A.2 Stra is authorised to check whether the provisions of this European Technical

    Approval are met. Checking may take place in the manufacturing plant(s).

    Nevertheless, the responsibility for the conformity of the products to the European

    Technical Approval and for their fitness for the intended use remains with the holder

    of the European Technical Approval.

    A.3 This European Technical Approval is not to be transferred to manufacturers or

    agents of manufacturers other than those indicated on page 1, or manufacturing

    plants other than those indicated on page 1 of this European Technical Approval.

    A.4 This European Technical Approval may be withdrawn by Stra, in particular

    pursuant to information by the Commission according to Article 5(1) of Council

    Directive 89/106/EEC.

    A.5 Reproduction of this European Technical Approval including transmission by

    electronic means shall be in full. However, partial reproduction can be made with the

    written consent of Stra. In this case partial reproduction has to be designated as

    such. Texts and drawings of advertising brochures shall not contradict or misuse the

    European Technical Approval.

    A.6 The European Technical Approval is issued by the approval body in its official

    language. This version corresponds fully to the version circulated in EOTA.

    Translations into other languages have to be designated as such.

    1Official Journal of the European Communities N L 40, 11.2.1989, p. 12

    2Official Journal of the European Communities N L 220, 30.8.1993, p. 1

    3

    Official Journal of the European Union N L 284, 30.10.2003, p. 14Official Journal of the French Republic of the 14

    thJuly 1992

    5Official Journal of the European Communities N L 17, 20.1.1994, p. 34

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    European Technical Approval n 13/0979 Page 5 of 50

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    B SPECIFIC CONDITIONS OF THE EUROPEAN TECHNICAL

    APPROVAL

    B.1 DEFINITION OF PRODUCTS AND INTENDED USE

    B.1.1 Definition of ProductsThis European Technical Approval applies to a kit:

    DYWIDAG External Strand Post-Tensioning System

    consisting of 3 to 37 strands.

    The DYWIDAG post-tensioning kit is designed for internal unbonded and external

    prestressing.

    The prestressing tendon consists of a bundle of 7-wire strands, anchorages, deviators, sheathing

    and corrosion protective compounds.- The strandsare defined in the prEN 10138-3: Prestressing steels Strand as 0.6

    normal and super strand, i.e. with 15.3 and 15.7 mm nominal diameter,

    with a nominal tensile strength of 1770 or 1860 N/mm, coded Y1770S7 15.3 (or

    15.7) or Y1860S7 15.3 (or 15.7), respectively, referred to as the tensile element.

    - As long as EN 10138 is not implemented 7-wire strands in accordance with

    national provisions shall be used.

    - Stressing(active) anchoragesand fixed(passive) anchorages

    consisting of an anchor plate with connection tube, steel trumpet, plastic

    insert and wedge plate, or consisting of a cast iron anchor body with a HDPE-trumpet and a wedge

    plate.

    - Sheathingsare made of plastic (polyethylene, HDPE).

    - Deviatorsare specific elements at given locations in the structure along the tendon.

    These are generally made of steel tubes (straight or prebent) placed inside the

    concrete structure or construction steel saddles applied to the structure.

    - Bursting reinforcement (helix and stirrups), for the concrete confinement at

    anchorages to ensure local prestressing force transfer into the concrete structure.

    -The corrosion protecting compound can be a flexible compound with a wax base(in accordance with Annex C.4.2 of ETAG 013) for external and internal unbonded

    use, or a cement based grout (in accordance with EN 447) for rigid injection for

    external use only.

    Steel and plastic tubes, the ordinary reinforcement for bursting reinforcement, grouting

    products are covered by European or national provisions thus they are not described in this

    ETA. However, they can be used for the prestressing kit.

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    European Technical Approval n 13/0979 Page 6 of 50

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    B.1.2 Intended use

    The DYWIDAG internal unbonded and external strand post-tensioning system (in the

    following PT system) has been developed to be used for:

    new structures repairing and strengthening existing structures

    exposed to effects from gravity and live loads, climate exposures, imposed sets of

    deformations.

    If used for external prestressing this PT system is meant for concrete structures/members with a

    tendon path situated outside their cross section but inside their envelope. It may also be

    employed in structures made of other materials, e.g. masonry, steel, cast iron, timber or

    combinations of several materials (see Annex 15). In case of use with other materials than

    concrete, dimensions and force transfer shall be designed according to the relevant Eurocodes

    or national regulations valid in place of use.

    The following optional use categories for the tendons are possible:

    restressable

    exchangeable

    encapsulated

    B.1.3 Working life

    The provisions made in this European Technical Approval are based on an assumed working

    life of the PT system of 100 years. These provisions are based upon the current state of the art

    and the available knowledge and experience. The indications given on the working life cannotbe interpreted as a guarantee given by the kit manufacturer or the Approval Body, but are to be

    regarded only as a means for choosing the right products in relation to the expected

    economically reasonable working life of the works.

    The relevant Eurocodes are the following:

    EN 1990 Eurocode 0: Basis of structural design

    EN 1991 Eurocode 1: Actions on structures

    EN 1992 Eurocode 2: Design of concrete structures

    EN 1993 Eurocode 3: Design of steel structures

    EN 1994 Eurocode 4: Design of composite steel and concrete structures

    EN 1995 Eurocode 5: Design of timber structuresEN 1996 Eurocode 6: Design of masonry structures

    The PT system is supposed to be subject to appropriate use and maintenance (see Chapter 7 of

    ETAG 013).

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    European Technical Approval n 13/0979 Page 7 of 50

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    B.2 CHARACTERISTICS OF PRODUCT AND METHODS OF VERIFICATION

    B.2.1 Characteristics of product

    B.2.1.1 GeneralThe components correspond to the drawings and provisions given in this European Technical

    Approval including the Annexes. The characteristic material values, dimensions and tolerances

    of the components not indicated in the Annexes shall correspond to the respective values laid

    down in the technical documentation of this European Technical Approval. Arrangement of the

    tendons, the design of the anchorage zones, the anchorage components and the diameters of the

    sheathings shall correspond to the attached description and drawings; the dimensions and

    materials shall comply with the values given therein.

    The first digit of the designation of components of anchorages (6) identifies the nominal strand

    diameter in tenfold of inches (0.60/0.62), the second digit is an internal code and the last two

    digits refer to the number of strands in the tendon (size of tendon). The components (except

    helix and additional reinforcement) fit for tendons with both strand strengths.

    B.2.1.2 Strands

    Only 7-wire strands shall be used in accordance with national provisions with the

    characteristics given in Annex 18.

    To avoid confusions only strands with one nominal diameter shall be used on one site. If the

    use of strands with Rm = 1860 MPa is intended on site, these shall only be used there.

    Only strands stranded in the same direction shall be used in a tendon.

    B.2.1.3 Wedges

    Wedges (see Annex 2) are approved with 30-tooth or 45-tooth. The segments of the wedges

    for strands 15.3 mm are 42 mm long and the segments of the wedges for strands 15.7 mm

    are 45 mm long. The wedge dimension does not depend on the strands strength.

    Wedges of one supplier only may be used at one construction site.

    B.2.1.4 Wedge plates

    The conical drills of the wedge plates (see Annex 2) shall be clean, stainless and provided witha corrosion protection.

    B.2.1.5 Anchor plate with recess tube

    Circular anchor plate with recess tube welded watertight to it shall be used (see Annexes 3-5).

    B.2.1.6 Steel trumpet with PE-insert

    As a part of the steel trumpet the tension ring is welded to the steel tube with the flange. The

    PE-insert is fixed to the tension ring through a gasket with a retaining ring and screws (see

    Annex 2). A piece of plastic sheathing with relevant diameter is mirror welded to the PE-insert.

    Its length is determined in order to protrude out from the concrete body around the anchorage

    zone.

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    European Technical Approval n 13/0979 Page 9 of 50

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    B.2.2 Methods of verification

    B.2.2.1 General

    This European Technical Approval for the "DYWIDAG external strand post-tensioningsystem" is issued on the basis of agreed data, deposited at Stra, which identifies the

    "DYWIDAG external strand post-tensioning system" that has been assessed and judged.

    Assessment of the fitness of the "DYWIDAG external strand post-tensioning system" for the

    intended use in relation to the requirements for mechanical resistance and stability in the sense

    of Essential Requirements 1 and for Essential Requirement 3 (hygiene, health and

    environment) has been made in accordance with the ETAG 013, Guideline for European

    Technical Approval of post-tensioning kits for prestressing of structures, based on the

    provisions for all systems.

    The release of dangerous substances (Essential Requirement 3) is determined according to

    ETAG 013, clause 5.3.1. A declaration was made by the kit manufacturer that the product does

    not contain any dangerous substances.

    In addition to the specific clauses relating to dangerous substances contained in the ETA, there

    may be other requirements, applicable to the products falling within its scope (e.g. transposed

    European legislation and national laws, regulations and administrative provisions). In

    conformity with the provisions of the European directive 89/106/EEC, these requirements must

    also be complied with wherever they apply.

    The structural members (made of normal-weight concrete) prestressed by means of theDYWIDAG-External Strand Post-Tensioning System used to be designed in accordance with

    national regulations.

    B.2.2.2 Tendons

    The maximum prestressing and over-tensioning force to be applied on the tendon is specified in

    the national standards and regulations in force in the place of use.

    The maximum force P0, max defined according to EN 1992-1-1 paragraph 5.10.2 (with

    recommended values for k1 and k2), and according to prEN 10138, shall not exceed the values

    laid down in Table 1(140 mm) or in Table 2(150 mm).

    Maximum prestressing force P0, max = min (0.8 Fpk ; 0.9 Fp0.1k) where Fpk= Ap fpk is the

    characteristic tensile force of tensile elements of tendons and Fp0.1k= Ap fp0.1kthe characteristic

    tensile yield force of tensile elements of tendon (0.1 % proof load).

    The initial prestressing force Pm0immediately after tensioning and anchoring shall not exceed

    the values laid down in Table1(140 mm) or in Table2 (150 mm), see also Annex 1.

    Initial prestressing force Pm0= min (0.75 Fpk; 0.85 Fp0.1k)

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    European Technical Approval n 13/0979 Page 10 of 50

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    Table 1: Maximum prestressing forces6 for tendons with Ap = 140 mm

    Prestressing force

    Y1770S7

    Fp0.1k= 218 kN

    Prestressing force

    Y1860S7

    Fp0.1k= 229 kNTendon

    Designation

    Number

    of

    strands

    Cross

    section

    Ap[mm]

    Pm0, max [kN] P0, max [kN] Pm0, max [kN] P0, max [kN]

    6803 3 420 556 589 584 618

    6804 4 560 741 785 779 824

    6805 5 700 927 981 974 1031

    6807 7 980 1297 1373 1363 1443

    6809 9 1260 1668 1766 1752 1855

    6812 12 1680 2224 2354 2336 2473

    6815 15 2100 2780 2943 2920 30926819 19 2660 3521 3728 3698 3916

    6822 22 3080 4077 4316 4282 4534

    6827 27 3780 5003 5297 5256 5565

    6831 31 4340 5744 6082 6034 6389

    6837 37 5180 6856 7259 7202 7626

    Table 2: Maximum prestressing forces6 for tendons with Ap = 150 mm

    Prestressing forceY1770S7

    Fp0.1k= 234 kN

    Prestressing forceY1860S7

    Fp0.1k= 246 kNTendon

    Designation

    Number

    of

    strands

    Crosssection

    Ap[mm]

    Pm0, max [kN] P0, max [kN] Pm0, max [kN] P0, max [kN]

    6803 3 450 597 632 627 664

    6804 4 600 796 842 836 886

    6805 5 750 995 1053 1046 1107

    6807 7 1050 1392 1474 1464 1550

    6809 9 1350 1790 1895 1882 1993

    6812 12 1800 2387 2527 2509 2657

    6815 15 2250 2984 3159 3137 3321

    6819 19 2850 3779 4001 3973 4207

    6822 22 3300 4376 4633 4600 4871

    6827 27 4050 5370 5686 5646 5978

    6831 31 4650 6166 6529 6482 6863

    6

    The forces P0, maxand Pm0are given as indicative values. The actual values are to be found in nationalregulations valid on place of use. Compliance with the stabilisation and crack width criteria in the load transfer test

    was verified to a load level of 0.80 Fpk.

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    Prestressing force

    Y1770S7

    Fp0.1k= 234 kN

    Prestressing force

    Y1860S7

    Fp0.1k= 246 kNTendon

    Designation

    Number

    of

    strands

    Cross

    section

    Ap[mm]

    Pm0, max [kN] P0, max [kN] Pm0, max [kN] P0, max [kN]

    6837 37 5550 7359 7792 7737 8192

    The number of strands in a tendon may be reduced by leaving out strands lying radial-

    symmetrically in the wedge plate. The provisions for tendons with completely filled wedge

    plates (basic types) also apply to tendons with only partly filled wedge plates. Into the cones

    not filled short pieces of strands with wedges have to be pressed to assure a sufficient bending

    stiffness of the wedge plate. Obviously for such tendons wedge plates machined without the not

    needed conical borings can be applied, too.

    The prestressing force is reduced per strand left out as shown in Table 3.

    Table 3: Reduction of the prestressing force when leaving out one strand

    Y1770S7 Y1860S7Ap

    IPm0 [kN] IP0 [kN] IPm0 [kN] IP0 [kN]

    140 mm 185.3 196.2 194.7 206.1

    150 mm 198.9 210.6 209.1 221.4

    B.2.2.3 Losses of the prestressing force due to friction

    At calculation of the losses of the prestressing force due to friction the friction coefficient

    U = 0.12 0.14 shall be considered. This value is for information only. The exact frictioncoefficient must be adapted to each project and also in case of restressing. For internal

    unbonded tendons the wobble coefficient k = 0.005 rad/m (unintentional deviation) shall be

    considered.

    At external tendons no wobble coefficient k need to be taken into account.

    For the determination of strains and forces of prestressing steel friction losses VPUA in the

    active anchorage zone shall be taken into account as follows:

    - For the tendon sizes from 6803 to 6805: PUA = 1.0 %

    -For the tendon sizes from 6807 to 6837: PUA = 0.5 %

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    B.2.2.4 Radius of curvature of the tendons at deviations and geometry of deviators

    The smallest admissible radius of curvature of the tendons with sheathings as defined in

    Appendix C.2 of ETAG 013 based on ENV 1992-1-5 and the required dimensions of the bent

    steel deviation tubes are given in Table 4and Annex 16.

    Table 4: Smallest radius of curvature of deviators

    Tendon Min. radius

    of curvature

    Tendon Min. radius

    of curvature

    6803 2.00 m 6815 2.75 m

    6804 2.00 m 6819 3.00 m

    6805 2.00 m 6822 3.25 m

    6807 2.00 m 6827 3.50 m

    6809 2.25 m 6831 3.75 m

    6812 2.50 m 6837 4.00 m

    The minimum values of radius of curvature given in Table 4 shall be respected, unless a

    national regulation is stricter.

    Smooth steel pipes can be bent to a constant radius in one plane. This should be taken into

    account at when specifying the tendon layout.

    By using anchor bodies type MA a straight length of the tendon behind the anchorage

    (measured from the top of the anchor body) according to Table 5is required.

    Table 5: Required straight length of the tendon in the anchorage zone by using anchor

    bodies (measured from the top of the anchor body)

    Tendon Straight length

    of the tendon

    Tendon Straight length

    of the tendon

    6805 0.85m 6819 1.20 m

    6807 0.75m 6822 1.20 m

    6809 1.00 m 6827 1.30 m

    6812 1.05 m 6831 1.45 m6815 1.05 m 6837 1.45 m

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    By using anchor plates a straight length of the tendon behind the anchorage (measured from the

    top of the anchor plate) according to Table 6is required.

    Table 6: Required straight length of the tendon in the anchorage zone by using anchor

    plates (measured from the top of the anchor plate)

    Tendon Straight length

    of the tendon

    Tendon Straight length

    of the tendon

    6803 0.70 m 6815 1.20 m

    6804 0.80 m 6819 1.30 m

    6805 0.85 m 6822 1.40 m

    6807 0.90 m 6827 1.50 m

    6809 1.00 m 6831 1.60 m

    6812 1.10 m 6837 1.60 m

    In case of an external exchangeable tendon with cement grout no curved tendon layout is

    allowed within the concrete body around the anchorage zone.

    In case of a curved tendon layout in the anchorage zone of an external tendon with wax, the

    smallest admissible radius of curvature is given in Table 7.

    Table 7: Smallest radius of curvature of deviators behind the anchorage

    Tendon Min. radius

    of curvature

    behind

    anchorage

    Tendon Min. radius

    of curvature

    behind

    anchorage

    6803 3.00 m 6815 3.75 m

    6804 3.00 m 6819 4.00 m

    6805 3.00 m 6822 4.25 m

    6807 3.00 m 6827 4.50 m

    6809 3.25 m 6831 4.75 m

    6812 3.50 m 6837 5.00 m

    The minimum values of radius of curvature given in Table 7shall be respected, unless a

    national regulation is stricter.

    B.2.2.5 Concrete strength

    At the time of transmission of the full prestressing force to the concrete member the mean

    concrete strength in the anchorage zone shall be at least fcmj, cubeor fcmj, cylaccording to Table 8.

    The mean concrete strength (fcmj, cube or fcmj, cyl) shall be verified by means of at least three

    specimens (cube with the edge length of 150 mm or cylinder with diameter of 150 mm and

    height of 300 mm), which shall be stored under the same conditions as the concrete member,with the individual values of specimens not differ more than 5 %.

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    Table 8: Necessary minimum mean concrete strength fcmjof the specimens at time of

    prestressing

    fcmj, cube[N/mm] fcmj, cyl[N/mm]

    25 2045 36Plate anchorage

    60 50

    25 20

    34 28MA with helix

    45 36

    34 27

    45 35MA without helix

    54 43

    For partial prestressing with 30 % of the full prestressing force the actual mean value of the

    concrete compressive strength to be proved is 0.5 fcmj, cubeor 0.5 fcmj, cyl; intermediate values

    may be interpolated linearly.

    B.2.2.6 Centre and edge distances of the tendon anchorages, concrete cover

    The centre and edge distances of the tendon anchorages shall be the values given in the

    Annexes 6-8and 11-14 depending on the actual mean concrete strength. These are valid for

    both strand sizes ()15,7 mm and ()15,3 mm.

    The values of the centre or edge distances of the anchorages given in the Annexes may bereduced in one direction up to 15 %, however, in the other direction these values shall be

    increased for keeping the same concrete area in the anchorage zone. By reducing these values,

    a minimal centre and edge distance has to be considered:

    - MA-Anchorages without helix (see Annexes 13 and 14): External dimension of the

    stirrup reinforcement plus 20 mm.

    - Plate and MA-Anchorages with helix (see Annexes 6-8 and 11-12): External diameter

    of the helix plus 20 mm.

    The dimensions of the additional reinforcement shall be fitted accordingly.

    All centre and edge distances have only been specified in conjunction with load transfer to the

    structure; therefore, the concrete cover given in national standards and provisions shall be taken

    into account additionally.

    The concrete cover may under no circumstance be less than 20 mm or smaller than the concrete

    cover of the reinforcement installed in the same cross section. The concrete cover of the

    anchorage should be at least 20 mm. Standards and regulations on concrete cover valid in place

    of use shall be considered.

    B.2.2.7 Reinforcement in the anchorage zone

    The anchorages (including reinforcement) for the transfer of the prestressing forces to thestructural concrete were verified by means of tests. The resistance to the forces occurring in the

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    structural concrete in the anchorage zone outside the helix and the additional reinforcement

    shall be verified. An adequate transverse reinforcement shall be provided here in particular for

    the occurring transverse tensile forces (not shown in the attached drawings).

    The steel grades and dimensions of the additional reinforcement (stirrups) shall follow the

    values given in the Annexes 6-8 and 11-14. Existing reinforcement in a corresponding positionmore than the reinforcement required by design may be taken into account for the additional

    reinforcement. The additional reinforcement shall be of closed stirrups (stirrups closed by

    means of bends or hooks or an equivalent method) or of orthogonal reinforcement properly

    anchored. The stirrups locks (bends or hooks) shall be placed staggered.

    In the anchorage zone vertically led gaps shall be provided for proper concreting.

    If required for a specific project design, the reinforcement given in the Annexes can be

    modified in accordance with the respective regulations in force at the place of use as well as

    with relevant approval of the local authority and of the ETA holder to provide equivalent

    performance. If in exceptional cases7 due to an increased amount of reinforcement the helixor the concrete cannot be properly placed, the helix can be replaced by different equivalent

    reinforcement.

    B.2.2.8 Slip at the anchorages

    The slip at the anchorages (see section B.4.2.4) shall be taken into account in the static

    calculation and the determination of the tendon elongation.

    B.2.2.9 Resistance to fatigue

    With the fatigue tests carried out in accordance with ETAG 013, the stress range of 80 MPa of

    the anchorages at maximum load of 0.65 fpkat 2x106

    load cycles was demonstrated.

    7This requires the approval of the local authority for individual case according to the national regulations

    and administrative provisions.

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    European Technical Approval n 13/0979 Page 16 of 50

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    B.3 EVALUATION AND ATTESTATION OF CONFORMITY AND CE MARKING

    B.3.1 Attestation of System Conformity

    According to the decision 98/456/EC of the European Commission8 the system 1+ of

    attestation of conformity applies and is defined as follows:System 1+: Certification of the conformity of the product by an approved certification body

    on the basis of:

    (a) Tasks of the kit manufacturer:

    (1) Factory production control,

    (2) Further testing of samples taken at the factory by the kit manufacturer in

    accordance with a prescribed test plan.

    (b) Tasks for the approved body (certification body):

    (3) Initial type-testing of the product,

    (4) Initial inspection of factory and of factory production control,

    (5) Continuous surveillance, assessment and approval of factory production control,

    (6) Audit-testing of samples taken at the kit manufacturer. (see ETAG013, section

    8.1 (b)).

    Note: Approved bodies are also referred to as notified bodies.

    B.3.2 Responsibilities

    B.3.2.1 Tasks of the kit manufacturer

    B.3.2.1.1 Factory production control

    The kit manufacturer shall keep available an updated list of all components manufacturers. The

    list is provided to the Certification Body and to the Approval Body.

    The kit manufacturer shall exercise permanent internal control of production. All the elements,

    requirements and provisions adopted by the kit manufacturer shall be documented in a

    systematic manner in the form of written policies and procedures, including records of results

    performed. This production control system shall insure that the product is in conformity with

    this European Technical Approval.

    The kit manufacturer may only use initial materials stated in the technical documentation of

    this European Technical Approval.

    The factory production control shall be in accordance with the "Control Plan of 27 June 2013

    relating to the European Technical Approval ETA-13/0979issued on 27 June 2013" which is

    part of the technical documentation of this European Technical Approval. The "Control Plan" is

    8Official Journal of the European Communities N

    oL 201/112, 3.7.1998

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    European Technical Approval n 13/0979 Page 17 of 50

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    laid down in the context of the factory production control system operated by the kit

    manufacturer and deposited at Stra9.

    The prescribed test plan defined in Annex 19gives the type and frequency of checks and tests

    conducted during production and on the final product as part of the continuous internal

    production control.The results of factory production control shall be recorded and evaluated in accordance with the

    provisions of the "Control Plan".

    The records shall contain at least the following information:

    - Designation of the product or the initial material and the components,

    - Kind of control or testing,

    - Date of manufacture and of testing of product or components and of initial material,

    - Results of controls and tests and, where specified, comparison with the

    requirements,

    - Name and signature of person responsible for the factory production control.

    The records shall be kept for at least ten years and on request they shall be presented to Stra.

    If the test results are not satisfactory, the kit manufacturer shall take immediate measures to

    eliminate defects. Construction products or components which are not in compliance with the

    requirements shall be handled such that they cannot be mistaken for products complying with

    the requirements. After elimination of the defects the relevant test shall be immediately

    repeated as far as is technically possible and necessary for verifying the deficiency elimination.

    B.3.2.1.2 Other tasks of kit manufacturerThe kit manufacturer shall, on the basis of a contract, involve a body which is approved for the

    tasks referred to in section B.3.1 in the field of Post-Tensioning Kits for Prestressing of

    Structures in order to undertake the actions laid down in section B.3.3. For this purpose, the

    "control plan" referred to in sections B.3.2.1.1and B.3.2.2 shall be handed over by the kit

    manufacturer to the approved body involved.

    The kit manufacturer shall make a declaration of conformity, stating that the construction

    product is in conformity with the provisions of the European Technical Approval ETA-13/0979

    issued on 27 June 2013.

    At least once a year, each components manufacturer shall be audited by the kit manufacturer.

    The result of the audit shall be made available for at least 10 years to the certifying body.

    At least once a year specimens shall be taken from one job site and one series of single tensile

    element tests shall be performed according to ETAG 013, Annex E3 (see Annex 20). The

    results of these test series shall be made available to the approved body.

    9The "control plan" is a confidential part of the European Technical Approval and only handed over to the

    approved body involved in the procedure of attestation of conformity. See section 3.2.2.

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    European Technical Approval n 13/0979 Page 18 of 50

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    B.3.2.2 Tasks of the approved body

    B.3.2.2.1 General

    The approved body shall perform the

    - initial type-testing of the product,

    - initial inspection of factory and of factory production control,

    - continuous surveillance, assessment and approval of factory production control,

    - audit-testing of samples taken at the factory

    in accordance with the provisions laid down in the "Control Plan of 26 June 2013relating to the

    European Technical Approval ETA-13/0979 issued on 27 June 2013".

    The approved body shall retain the essential points of its actions referred to above and state theresults obtained and conclusions drawn in a written report.

    The main production centre is checked at least once a year by the approved body. Each

    component producer is checked at least once every five years by the approved body.

    The approved certification body involved by the kit manufacturer (DYWIDAG-Systems

    International GmbH) shall issue an EC certificate of conformity of the product stating the

    conformity with the provisions of this European Technical Approval.

    In cases where the provisions of the European Technical Approval and its "Control Plan" are no

    longer fulfilled the certification body shall withdraw the certificate of conformity and informStra without delay.

    B.3.2.2.2 The approved Initial type-testing of the product

    For initial type-testing the results of the tests performed as part of the assessment for the

    European Technical Approval may be used unless there are changes in the production line or

    plant. In such cases the necessary initial type-testing has to be agreed between Stra and the

    approved body involved.

    B.3.2.2.3 The approved Initial inspection of factory and of factory production control

    The approved body shall ascertain that, in accordance with the "Control Plan, the factory, inparticular the staff and equipment, and the factory production control are suitable to ensure a

    continuous and orderly manufacturing of the PT system with the specifications mentioned in

    section B.2.1 as well as in the Annexes to the European Technical Approval.

    B.3.2.2.4 Continuous surveillance, assessment and approval of factory production control

    The kit manufacturer shall be inspected by the approved body at least once a year. Each

    component manufacturer shall be inspected at least once in five years. It shall be verified that

    the system of factory production control and the specified manufacturing process are

    maintained taking account of the prescribed test plan.

    Continuous surveillance and assessment of factory production control have to be performedaccording to the prescribed test plan.

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    European Technical Approval n 13/0979 Page 19 of 50

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    The results of product certification and continuous surveillance shall be made available on

    demand by the approved body to Stra.

    B.3.2.2.5 Audit-testing of samples taken at the kit manufacturer

    During surveillance inspections the approved body shall take samples at the factory of

    components of the PT system or of individual components for which this Technical Approval

    has been granted, for independent testing. For the most important components Annex 19

    contains the minimum procedures which have to be performed by the approved body.

    The basic elements of the Audit testing comply with ETAG 013, Annex E2 (see Annex 20).

    B.3.3 CE Marking

    The CE marking must comply with the European Council Directive 89/106/CEE, and to the

    EC guideline D related to the marking. The delivery bill accompanying the PT kit

    components shall bear the conformity CE marking symbol and the following mentions:

    1. Name and address of kit manufacturer,

    2. Last two digits of the year during which the marking has been made,

    3. Number of conformity certificate,

    4. Number of ETA,

    5. See information on ETA,

    6. Number of Certification body,

    7. Product Identification (commercial denomination) and use category(ies).

    All other information must be clearly distinct from the CE marking and the related mentions.

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    European Technical Approval n 13/0979 Page 20 of 50

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    B.4 ASSUMPTIONS UNDER WHICH THE FITNESS OF THE PRODUCT FOR THEINTENDED USE WAS FAVOURABLY ASSESSED

    B.4.1 Manufacturing

    The European Technical Approval is issued for the product on the basis of agreeddata/information, deposited with Stra, which identifies the product that has been assessed and

    judged. Changes to the product or production process, which could result in this deposited

    data/information being incorrect, should be notified to Stra before the changes are introduced.

    Stra will decide whether or not such changes affect the ETA and consequently the validity of

    the CE marking on the basis of the ETA and if so whether further assessment or alterations to

    the ETA shall be necessary.

    B.4.2 Installation

    B.4.2.1 General

    Assembly and installation of the tendons shall only be performed by qualified post-tensioning

    specialist companies which have the required technical skills and experiences with this

    DYWIDAG PT system. The companys site manager shall have a certificate of the ETA holder

    certifying that he is instructed by the ETA holder and has the required knowledge and

    experience with this PT system. National standards and regulations valid on site shall be

    considered.

    The ETA holder is responsible to inform anyone concerned about the use of this DYWIDAG

    PT system. Additional information as listed in ETAG 013, section 9.2 shall be held available at

    the ETA holder and shall be distributed as needed.

    The tendons and the components shall be handled carefully.

    B.4.2.2 Welding

    Welding at the anchorages is only permitted at the following points:

    a) Welding of the end of the helix to a closed ring.

    b) For ensuring the central position the helix may be attached to the anchor plate or to

    the anchor body by welding.

    After mounting the tendons no more welding shall be performed at the anchorages and in the

    immediate vicinity of the tendons.

    B.4.2.3 Installation of the tendon

    The central position of the helix and stirrups shall be ensured by tack-welding to the anchor

    plate or the anchor body or other appropriate mountings. The anchor plate or the anchor body,

    respectively, shall be in direction perpendicular to the axis of the straight tendon in the vicinity

    of the anchorage.

    The tendon shall be placed straightforward behind the anchorage according to Table5 and

    Table 6.

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    European Technical Approval n 13/0979 Page 21 of 50

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    B.4.2.4 Wedging force, slip at anchorages, wedge securing and corrosion protection

    compound

    The draw-in of the anchorage to be taken into account for the determination of the elongations

    and at load transfer from the jack onto the anchorage shall be taken from Table 9.The wedges of all anchorages (fixed anchorages) which are no more accessible during

    tensioning shall be secured by means of wedge keeper plates and bolts.If the calculated

    prestressing force in these anchorages is less than 0.7 Pm0, maxthe wedges shall be pre-wedged

    with P0, max(see section B.2.2.2).

    Table 9: Draw-in values for calculation of elongation [mm]

    Draw-in at stressing anchorage Draw-in at fixed anchorage

    Draw-in to beconsidered forcalculation of

    elongation

    Draw-in at loadtransfer from the

    jack onto theanchorage

    Draw-in to be considered forcalculation of elongation

    Without pre-wedging orpower-seating

    1 8 6

    With power-seating20 kN per strand at

    stressing anchorage 1 4 -

    With pre-wedging P0, max

    at fixed anchorage - - 1

    At installation of the wedges into the conical borings of the not accessible fixed anchorages the

    gaps shall be filled with corrosion protection compound.

    Before pouring of concrete the wedge plates of the not accessible fixed anchorages shall be

    sealed with a grout cap.

    B.4.2.5 Stressing and stressing records

    B.4.2.5.1 Stressing

    At time of stressing the minimum mean concrete strength shall comply with the values given in

    section B.2.2.5. In the vicinity of the anchorages the concrete must be especially homogeneous.

    It is admissible to restress the tendons by releasing and re-using the wedges. After restressing

    and anchoring, wedge marks on strands resulting from first stressing shall be moved to the

    outside by at least 15 mm.

    The minimum straight length for tensioning behind the anchorages (strand protrusion) depends

    on the jack which is used on site (see Annex 22). All strands of a tendon shall be stressed

    simultaneously. This can be done by centrally controlled individual jacks or by a bundle jack.

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    European Technical Approval n 13/0979 Page 22 of 50

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    B.4.2.5.2 Stressing record

    All stressing operations shall be recorded for each tendon. In general, the required prestressing

    force shall be achieved. The elongation is measured and compared with the calculated value.

    If during tensioning the difference between measured and calculated elongation is more than

    15 % of the calculated value then the engineer shall be informed and the causes shall be found.

    B.4.2.5.3 Prestressing jacks and space requirements, safety-at-work

    For stressing hydraulic jacks are used. Information about the stressing equipment is shown in

    Annex 22.

    To facilitate jack placement and stressing the tendons, clearance according to Annex 23 shall

    be considered directly behind the anchorages.

    The safety-at-work and health protection regulations shall be complied with.

    B.4.2.6 Grouting

    B.4.2.6.1 Grout and grouting procedures

    Grout according section B.2.1.10 shall be used. Grouting procedures shall be carried out in

    accordance with EN 446:1996. Local standards and national regulations valid in place of use

    shall be considered.

    B.4.2.6.2 Water rinse

    Normally, sheathing shall not be rinsed with water. Local standards and national regulations

    valid in place of use shall be considered.

    B.4.2.6.3 Grouting speed

    The grouting speed shall be in the range between 3 m/min and 12 m/min.

    B.4.2.6.4 Grouted section and re-grouting

    The maximum length of a grouted section depends on the capacity of the grouting apparatus

    and shall be determined before the grouting procedure. When exceeding these tendon lengths,

    additional grouting openings shall be provided. Where the tendon is led via distinct high points,

    re-groutings shall be performed in order to avoid voids. For re-groutings corresponding

    measures shall be taken into account already in design.

    Vents on the ducts shall be provided at both ends and at the points of the tendon where air orwater may accumulate. In case of ducts of considerable length, vents or inlets may be required

    at intermediate positions. Local standards and national regulations valid in place of use shall be

    considered.

    B.4.2.6.5 Surveillance

    Surveillance according to EN 446:1996 shall be carried out.

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    B.4.2.7 Wax injection

    B.4.2.7.1 Wax and injection procedures

    Wax according section B.2.11 shall be used. Injection shall be carried out according to DSI

    special instructions. Injection equipment is normally composed of melting device (heater),

    stirrer and pump.

    B.5 PACKAGING, TRANSPORT, AND STORAGE

    The components and the tendons shall be protected against moisture and staining.

    The tendons shall be kept away from areas where welding procedures are performed.

    For strands the smallest diameter of curvature during transport is 1.65 m.

    The PE-tubes are delivered as straight or prebent tubes for the deviation zones and are

    connected on site by mirror welding or electro welding couplers.

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    Wedge:

    f

    **

    f

    *f

    Pitch circles:Wedge plate Cone (for both wedge sizes)

    Sheathing - Plate anchorage:

    Spacer Wedge keeper plate

    Wedge tooth geometries

    (for both wedge sizes)

    c

    6

    PE-Tube

    45

    Grout tube

    Mirror welding

    PE-Insert

    Steel trumpet Electro welding coupler PE-Tube

    Telescopic tube

    Steel tube

    Flange

    Sheathing - Multiplane anchorage MA:

    PE-Tube

    Grout tube

    Mirror weldingPE-Trumpet Electro welding coupler PE-Tube

    Telescopic tube

    2942

    Spacer

    22

    6822

    PE80, PN6

    No. of strands

    Tendon size

    Dimensions in mm

    6827

    27

    6837

    37

    c

    6831

    31

    f

    f *

    f **

    Outer diameter

    min. wall thickness

    Wedge keeper

    plate

    Pitch circles

    _

    19

    6819

    15

    6815

    12

    6812

    09

    6809

    07

    6807

    05

    6805

    04

    6804

    03

    6803

    6040__

    40 40 40 40 60 60 60 60

    185 195 215215170155135115100908080

    44_

    _

    _

    50_

    _

    _

    60_

    _

    070_

    _

    086_

    _

    _

    40

    105_

    0_ 065

    _

    60

    125_

    70

    136_

    86

    152_

    _

    38

    100165

    0

    _

    126190

    126190

    50

    3.0

    50

    3.0

    63

    3.8

    75

    4.5

    75

    4.5

    90

    5.4

    110

    6.6

    110

    6.6

    125

    7.4

    140

    8.3

    140

    8.3

    125

    7.4

    www.dywidag-systems.com

    DYWIDAG-Systems

    International GmbHDetails: Wedge, Cone, Sheathing

    DYWIDAG - PT external strand tendonAnnex 2

    of European

    Technical Approval

    ETA-13/0979

    Duct (min. values):

    PE100, PN10

    min. wall thickness 2.4 2.4 3.0 3.6 3.6 4.3 5.3 5.3 6.0 6.7 6.76.0

    (cement gr. injection):

    (wax or cement gr. inj.):

    Page 25 of ETA-13/0979, version of the 27 June 2013

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    m

    ( f acc. to Annex 2 )

    Wedge plateAnchor plate

    c

    e*

    e

    f

    25

    Minimum actual concrete

    strength at stressing

    fcm,0,cube

    03

    6803

    mLengthTrumpet

    Wedge plate d

    aAnchor plate

    Cone pattern and position

    No. of strands

    Tendon size

    Dimensions in mm

    6804

    04

    6807

    07

    170

    Type 2353/2354/2355 b

    c

    86

    45 60

    6805

    05

    170 190 175 165 220 200 185 250 230 210165

    86 105 112

    25 25 25 30 30 30 40 35 35 45 40

    Type 1350

    for 6803, 6804 d *

    eType 1362

    for 6805, 6807

    e *

    110 110 117 130

    71 71 88 96

    55 55 55 60

    47 47 47 52

    250 320 350 350

    www.dywidag-systems.com

    DYWIDAG-Systems

    International GmbH

    Plate anchorage

    DYWIDAG - PT external strand tendonAnnex 3

    of European

    Technical Approval

    ETA-13/0979Dimensions of components for 6803 - 6807

    25 45 60 25 45 60 25 45 60

    40

    Recess tube 95.0 95.0 114.3 127.0 r

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    m

    ( f, f * acc. to Annex 2 )

    Wedge plateAnchor plate

    c

    e*

    e

    f

    f *

    Minimum actual concrete

    strength at stressing

    fcm,0,cube

    09

    6809

    mLengthTrumpet

    Wedge plate d

    aAnchor plate

    Cone pattern and position

    No. of strands

    Tendon size

    Dimensions in mm

    6812

    12

    6819

    19

    275

    Type 2353/2354/2355 b

    c

    125

    6815

    15

    265 315 300 270 355 335 305 405 380 340240

    144 163 173

    50 50 45 55 55 50 60 60 55 70 70 60

    Type 1362 d *

    e

    e *

    145 170 190 210

    112 128 148 159

    60 65 70 80

    52 55 60 68

    530 600 630 785

    www.dywidag-systems.com

    DYWIDAG-Systems

    International GmbH

    Plate anchorage

    DYWIDAG - PT external strand tendonAnnex 4

    of European

    Technical Approval

    ETA-13/0979Dimensions of components for 6809 - 6819

    25 45 60 25 45 60 25 45 60 25 45 60

    Recess tube 139.7 159.0 177.8 193.7 r

    Page 27 of ETA-13/0979, version of the 27 June 2013

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    m

    ( f, f *, f ** acc. to Annex 2 )

    Wedge plateAnchor plate

    c

    e*

    e

    f

    f *

    f **

    Minimum actual concrete

    strength at stressing

    fcm,0,cube

    22

    6822

    mLengthTrumpet

    Wedge plate d

    aAnchor plate

    Cone pattern and position

    No. of strands

    Tendon size

    Dimensions in mm

    6827

    27

    6837

    37

    450

    Type 2353/2354/2355 b

    c

    199

    6831

    31

    410_

    455 405_

    490 440_

    520 470365

    208 234 234

    80 75 65 85 75 90 80 95 90

    Type 1362 d *

    e

    e *

    220 240 270 270

    176 188 214 214

    85 95 100 115

    73 80 80 95

    815 960 1105 1105

    _ _ _

    www.dywidag-systems.com

    DYWIDAG-Systems

    International GmbH

    Plate anchorage

    DYWIDAG - PT external strand tendonAnnex 5

    of European

    Technical Approval

    ETA-13/0979Dimensions of components for 6822 - 6837

    25 45 60 25 45 60 25 45 60 25 45 60

    219.1 244.5 273.0 273.0Recess tube r

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    Additional reinforcement

    n x ds

    da

    x

    da

    y

    i * Helix, n * x ds

    l *

    z i i i i i i i

    www.dywidag-systems.com

    DYWIDAG-Systems

    International GmbH

    Plate anchorageCentre and edge distances of tendon sizes 6803 - 6807

    for strand Y1860S7 15.3 and 15.7 and

    for strand Y1770S7 15.3 and 15.7

    DYWIDAG - PT external strand tendon

    0.5 x Centre distance + Concrete cover - 10mm

    205220255

    6

    14

    175

    40

    240

    5

    14

    150

    45

    220

    4

    8

    30

    60

    160

    n *

    d s

    d a

    i *

    min l *

    n

    d s

    z

    i

    x / y

    6804

    04

    _

    _

    __

    _

    pk pk pk pk=265.5kN)

    180195225

    6803

    03

    225245285

    6805

    05

    265285335

    6807

    07

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    6

    8

    30

    50

    185

    5

    10

    30

    50

    205

    6

    10

    30

    50

    245

    6.5

    14

    200

    45

    295

    6

    14

    165

    40

    245

    7

    14

    235

    45

    325

    6.5

    14

    200

    40

    270

    8

    14

    285

    45

    375

    7.5

    14

    240

    40

    315

    For z the concrete cover has to be considered!

    Edge distance R

    Centre distance A

    Minimum actual concrete

    strength at stressing

    fcm,0,cube

    Dimensions in mm

    Tendon size

    No. of strands

    Additional reinforcement

    (Material see Annex 18)

    No.

    Turns

    Strand

    Helix

    (Material see Annex 18)

    25 45 60 25 45 60 25 45 60 25 45 60

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    Technical Approval

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    Additional reinforcement

    n x ds

    da

    x

    da

    y

    i * Helix, n * x ds

    l *

    z i i i i i i i

    www.dywidag-systems.com

    DYWIDAG-Systems

    International GmbH

    Plate anchorageCentre and edge distances of tendon sizes 6809 - 6819

    for strand Y1860S7 15.3 and 15.7 and

    for strand Y1770S7 15.3 and 15.7

    DYWIDAG - PT external strand tendon

    0.5 x Centre distance + Concrete cover - 10mm

    340370425

    10

    14

    320

    40

    425

    8

    14

    270

    40

    345

    5

    12

    30

    60

    280

    n *

    d s

    d a

    i *

    min l *

    n

    d s

    z

    i

    x / y

    6812

    12

    _

    _

    __

    _

    pk pk pk pk=265.5kN)

    300320370

    6809

    09

    375415470

    6815

    15

    420465530

    6819

    19

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    7

    14

    30

    60

    320

    8

    14

    30

    50

    355

    8

    16

    30

    55

    400

    10

    16

    370

    45

    480

    8.5

    16

    315

    45

    410

    9

    20

    420

    55

    520

    8

    20

    360

    55

    465

    9.5

    20

    475

    55

    560

    9

    20

    405

    55

    530

    For z the concrete cover has to be considered!

    Edge distance R

    Centre distance A

    Minimum actual concrete

    strength at stressing

    fcm,0,cube

    Dimensions in mm

    Tendon size

    No. of strands

    Additional reinforcement

    (Material see Annex 18)

    No.

    Turns

    Strand

    Helix

    (Material see Annex 18)

    25 45 60 25 45 60 25 45 60 25 45 60

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    Technical Approval

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    Additional reinforcement

    n x ds

    da

    x

    da

    y

    i * Helix, n * x ds

    l *

    z i i i i i i i

    www.dywidag-systems.com

    DYWIDAG-Systems

    International GmbH

    Plate anchorageCentre and edge distances of tendon sizes 6822 - 6837

    for strand Y1860S7 15.3 and 15.7 and

    for strand Y1770S7 15.3 and 15.7

    DYWIDAG - PT external strand tendon

    0.5 x Centre distance + Concrete cover - 10mm

    500555_

    10

    20

    520

    55

    595

    10

    20

    450

    50

    545

    9

    16

    30

    60

    430

    n *

    d s

    d a

    i *

    min l *

    n

    d s

    z

    i

    x / y

    6827

    27

    _

    _

    __

    _

    pk pk pk pk=265.5kN)

    450500570

    6822

    22

    535595_

    6831

    31

    580650_

    6837

    37

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    __

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    _

    10

    16

    30

    60

    480

    11

    16

    30

    50

    515

    10

    16

    30

    60

    560

    11

    20

    495

    50

    605

    9

    16

    425

    50

    495

    12

    20

    535

    45

    605

    12.5

    20

    580

    45

    635

    For z the concrete cover has to be considered!

    10

    12

    30

    60

    535

    11

    14

    30

    60

    575

    11

    16

    30

    60

    630

    9.5

    16

    465

    50

    525

    10

    16

    510

    50

    560

    9

    14

    370

    45

    440

    Edge distance R

    Centre distance A

    Minimum actual concrete

    strength at stressing

    fcm,0,cube

    Dimensions in mm

    Tendon size

    No. of strands

    Additional reinforcement

    (Material see Annex 18)

    No.

    Turns

    Strand

    Helix

    (Material see Annex 18)

    25 45 60 25 45 60 25 45 60 25 45 60

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    Technical Approval

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    External and internal applications

    Internal application

    External application

    DYWIDAG - PT external strand tendon

    Multiplane anchorage MA

    Multiplane anchorage MA

    Plate anchorage

    Plate anchorage

    Page 38 of ETA-13/0979, version of the 27 June 2013

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    International GmbH

    Annex 15

    of European

    Technical Approval

    ETA-13/0979

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    do

    R

    t

    e

    PE-tube

    Rmin

    Deviation tube

    Expansion tube

    d

    uc

    t

    Deviator - Geometrical requirements for circular steel tubes

    DYWIDAG - PT external strand tendon

    o

    duct

    min

    *

    *

    *

    **

    *

    **

    Page 39 of ETA-13/0979, version of the 27 June 2013

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    DYWIDAG-Systems

    International GmbH

    Annex 16

    of European

    Technical Approval

    ETA-13/0979

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    DYWIDAG - PT external strand tendon

    StandardMaterialDesignation

    Wedge Case hardened steel *EN 10277-2: 2008

    EN 10083-2: 2006

    Wedge plateQuenched and

    tempered steel *EN 10083-1: 2006

    EN 10083-2: 2006

    EN 10025-2: 2004Structural steel *Anchor plate

    Materials and standard references

    Steel tube for

    anchor plateEN 10216-1: 2002

    EN 10217-1: 2002Structural steel *

    Spacer Polyethylene (PE) EN ISO 1872-1: 1999

    Flange EN 10025-2: 2004Structural steel *

    Steel tube for

    steel trumpet

    EN 10216-1: 2002

    EN 10217-1: 2002Structural steel *

    Tension ring EN 10025-2: 2004Structural steel *

    PE - Insert Polyethylene (PE) EN ISO 1872-1: 1999

    Retaining ring EN 10025-2: 2004Structural steel *

    HelixS 235 JR

    Reinf. steel Re 500 MPa

    EN 10025-2: 2004

    EN 10080: 2005

    EN 10080: 2005Additional reinforcement Re500 MPa

    PE - Tube Polyethylene (PE) EN 12201-2: 2003

    ** As long as EN 10080 does not exist harmonized, national standards shall be considered.

    **

    Multiplane anchor body

    Type MACast ductile iron *

    EN 1563: 1997

    ASTM A536: 1999

    PE - Trumpet Polyethylene (PE) EN ISO 1872-1: 1999

    th

    www.dywidag-systems.com

    DYWIDAG-Systems

    International GmbH

    Annex 17

    of European

    Technical Approval

    ETA-13/0979

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    DYWIDAG - PT external strand tendon

    ValueSymbolDesignation

    7 - wire strands 6803 - 6837

    DIMENSIONS AND PROPERTIES OF 7-WIRE STRANDS

    Tensile strength R /F

    Strand

    Unit

    m pk MPa

    External wire diameter

    1770 or 1860

    Nominal diameter D mm 15.7

    Nominal cross section 150

    Nominal mass M g/m 1172

    Ap

    Surface configuration plain

    Modulus of elasticity 195,000

    Individual wires

    _ _

    MPaE

    d mm

    d' mmCore wire diameter 1.02 to 1.04 d

    As long as EN 10138 does not exist 7 - wire strands in accordance with national provisions

    and with the characteristics given in the table above shall be used.

    Force of Single Strand at 0.1 %

    Y 1770

    Y 1860

    Fp0.1k kN

    Fp0.1k kN

    234

    246

    15.3

    140

    1093

    218

    229

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    International GmbH

    Annex 18

    of European

    Technical Approval

    ETA-13/0979

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    A U S T R I A

    A R G E N T I N A

    A U S T R A L I A

    B E L G I U M

    B O S N I A A N D H E R Z E G O V I N A

    B R A Z I L

    C A N A D A

    C H I L E

    C O L O M B I A

    C O S T A R I C A

    C R O A T I A

    C Z E C H R E P U B L I C

    D E N M A R K

    E G Y P T

    E S T O N I A

    F I N L A N D

    F R A N C E

    G E R M A N Y

    G R E E C E

    G U A T E M A L A

    H O N D U R A S

    H O N G K O N G

    I N D O N E S I A

    I T A L Y

    J A P A N

    K O R E A

    L E B A N O N

    L U X E M B O U R G

    M A L A Y S I A

    M E X I C O

    N E T H E R L A N D S

    N O R W A Y

    O M A N

    P A N A M A

    P A R A G U A Y

    P E R U

    P O L A N D

    P O R T U G A L

    Q A T A R

    S A U D I A R A B I A

    S I N G A P O R E

    S O U T H A F R I C A

    S P A I N

    S W E D E N

    S W I T Z E R L A N D

    T A I W A N

    T H A I L A N D

    T U R K E Y

    AustriaDYWIDAG-Systems International GmbH

    Alfred-Wagner-Strasse 14061 Pasching/Linz, AustriaPhone +43-7229-610 49 0Fax +43-7229-610 49 80E-mail [email protected]

    Belgium and LuxembourgDYWIDAG-Systems International N.V.Philipssite 5, bus 15Ubicenter, 3001 Leuven, BelgiumPhone +32-16-60 77 60

    Fax +32-16-60 77 66E-mail [email protected]/emea

    FranceDSI-Arton SASRue de la CrazZ.I. des Chartinires01120 Dagneux, FrancePhone +33-4-78 79 27 82Fax +33-4-78 79 01 56E-mail [email protected]

    GermanyDYWIDAG-Systems International GmbHGermanenstrasse 886343 Koenigsbrunn, GermanyPhone +49-8231-96 07 0Fax +49-8231-96 07 40

    E-mail [email protected]

    DYWIDAG-Systems International GmbHMax-Planck-Ring 140764 Langenfeld, GermanyPhone +49-2173-79 02 0Fax +49-2173-79 02 20E-mail [email protected]

    DYWIDAG-Systems International GmbHSchuetzenstrasse 2014641 Nauen, GermanyPhone +49-3321-44 18 0Fax +49-3321-44 18 38E-mail [email protected]

    DYWIDAG-Systems International GmbHSiemensstrasse 885716 Unterschleissheim, GermanyPhone +49-89-30 90 50 100Fax +49-89-30 90 50 120E-mail [email protected]/emea

    ItalyDYWIT S.P.A.Viale Europa 72 Strada A 7/920090 Cusago (MI), ItalyPhone +39-02-901 65 71Fax +39-02-901 65 73 01E-mail [email protected]

    NetherlandsDYWIDAG-Systems International B.V.Veilingweg 25301 KM Zaltbommel, NetherlandsPhone +31-418-57 89 22

    Fax +31-418-51 30 12E-mail [email protected]/emea

    PolandDYWIDAG-Systems International Sp. z o.o.ul. Bojownikw o Wolno i Demokracj 38/12141-506 Chorzw, PolandPhone +48-32-241 09 98Fax +48-32-241 09 28E-mail [email protected]

    SpainDYWIDAG Sistemas Constructivos, S.A.

    Avd/de la Industria, 4Pol. Ind. la Cantuena28947 Fuenlabrada (Madrid), SpainPhone +34-91-642 20 72Fax +34-91-642 27 10

    E-mail [email protected]

    United KingdomDYWIDAG-Systems International Ltd.Northfeld RoadSoutham, WarwickshireCV47 0FG, Great BritainPhone +44-1926-81 39 80Fax +44-1926-81 38 17E-mail [email protected]

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