As 1576.2 Scaffolding Couplers & Accessories

AS 1576.2—1991

Australian StandardR Scaffolding Part 2: Couplers and accessories

1 0 0 2 p e S 5 0 n o g n i r e e n i g n E h g u o l C y b d e s s e c c A

This Standard was prepared by Committee BD/36, Scaffolding. It was approved on behalf of the Council of Standards Standards on 21 August August 1991 and published published on 7 October 1991.

The following interests are represented on Committee BD/36: A.C.T. A.C.T. Administration, Office of City Management Aluminium Development Council Australian Federation of Construction Contractors Confederation of Australian Industry Department of Industrial Affairs, Qld Department of Labour and Industry, Tas. Department of Labour, S.A. Department of Labour, Vic. Department of Occupational Health Safety and Welfare, W.A. Master Builders Construction Construction and Housing Housing Association, Australia Metal Trades Industry Association of Australia National Association of Scaffolding and Formwork Contractors Workcover Authority, N.S.W. Work Health Authority, N.T.


Review of Australian Standards. To keep abreast of progress in industry, Australian Standards are subject to periodic review and are kept up to date by the issue of amendments or new editions as necessary. It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto. Full details of all Australian Standards and related publications will be foun d in the Standar ds ds Australia Catalogue of Publications; this information is supplemented each month by the magazine ‘The Australian Standard’, which subscribing members receive, and which gives details of new publications, new editions and amendments, and of withdrawn Standards. Suggestions for improvements to Australian Standards, addressed to the head office of Standards Australia, are welcomed. Notification of any inaccuracy or ambiguity found in an Australian Standard should be made without delay in order that the matter may be investigated and appropriate action taken.

This Standard was issued issued in draft form for comment as DR 90077.

AS 1576.2—1991

Australian StandardR Scaffolding Part 2: Couplers and accessories

First published as part of AS 1575—1974. Revised and redesignated in part as AS 1576.2—1991.


Incorporating: Amdt 1—1992

PUBLISHED BY STANDARDS AUSTRALIA (STANDARDS ASSOCIATION OF AUSTRALIA) 1 THE CRESCENT, HOMEBUSH, NSW 2140

ISBN 0 7262 7099 7

PREFACE This Standard was prepared by the Standards Australia Committee on Scaffolding, to supersede (in part) AS 1575—1974, Tubes, couplers and accessories used in metal scaffolding, which will be withdrawn on June 30, 1992. This edition incorporates the following major changes from the previous edition: (a)

Minimum Minimum material material requiremen requirements ts are given for aluminiu aluminium. m.

(b)

Changes to the general design requirements for couplers.

(c)

The design and performance requirements for adjustable legs has replaced replaced those requirements for adjustable baseplates.

(d)

A limit has been placed on the distortion distortion of a tube when tested with a coupler. coupler.

Requirements for steel tube and aluminium tube are incorporated in AS 1576.3.


E

Copyright — STANDARDS STANDARDS AUSTRALIA

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CONTENTS Page

SECT SECTIO ION N1 1.1 1.2 1.3 1.4

SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REFERENCED DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MARKETING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECT SECTIO ION N2 2.1 2.2 2.3

4.1 4.2 4.3 4.4 4.5 4.6

6 6 6

DESIGN DESIGN REQUIR REQUIREME EMENTS NTS

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . COUPLERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTIO SECTION N4

4 4 4 5

MATE MATERI RIAL ALS S

PROPERTIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STEEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ALUMINIUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTIO SECTION N3 3.1 3.2 3.3

SCOP SCOPE E AND AND GENE GENERA RAL L

7 7 7

PERFOR PERFORMAN MANCE CE REQUIR REQUIREME EMENTS NTS

COUPLERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADJUSTABLE LEG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADJUSTABLE BASEPLATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CASTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUTLOG BLADE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FLANGE CLAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10 10 10 10 10 10

APPENDICES A B C D E F G H I J K L


SLIP TEST FOR RIGHT–ANGLE AND SWIVEL COUPLER . . . . . . . . . . . DIST DISTOR ORTI TION ON TEST TEST FOR FOR RIGH RIGHT– T–AN ANGL GLE E AND AND SW SWIV IVEL EL COUP COUPLE LER R ... STRENGTH TEST FOR SWIVEL AND PUTLOG COUPLER . . . . . . . . . . . SLIP TEST FOR PUTLOG COUPLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SLIP TEST FOR END–TO–END COUPLER . . . . . . . . . . . . . . . . . . . . . . . . . SPLICING TEST FOR PARALLEL COUPLERS . . . . . . . . . . . . . . . . . . . . . . TEST TEST FOR FOR ADJU ADJUST STAB ABLE LE LEG LEG AND AND ADJU ADJUST STAB ABLE LE BASE BASEPL PLA ATE . . . . . . TEST FOR CASTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TEST FOR PUTLOG BLADE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . STRENGTH TEST FOR FLANGE CLAMP . . . . . . . . . . . . . . . . . . . . . . . . . . SLIP SLIP TEST TEST THR THROUGH OUGH RIGID IGID AND SW SWIV IVEL EL FLAN FLANG GE CLAM LAMPS . . . . . . SLIP TEST OF RIGID AND SWIVEL FLANGE CLAMPS . . . . . . . . . . . . .

11 13 15 17 19 21 23 25 26 28 30 32

AS 1576.2—1991

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STANDARDS AUSTRALIA Australian Australian Standar Standard d Scaffolding Part 2: Couplers and accessories SECTION SECTION 1 SCOPE AND AND GENERAL GENERAL 1.1 1.1 SCOPE SCOPE This Standard specifies requirements for couplers and accessories for light, medium and heavy duty scaffolding, in accordance with AS 1576.1. 1.2 REFERENCED REFERENCED DOCUMENTS DOCUMENTS The following documents are referred to in this Standard: AS 1111

ISO metric hexagon commercial bolts and screws

1112

ISO metric hexagon nuts, including thin nuts, slotted nuts and castle nuts

1237

Flat metal washers for general engineering purposes (metric series)

1444

Wrought alloy steels—Standard and hardenability (H) series

1576 1576.1

Sc af aff ol oldin g Part 1: General requirements

1594

Hot-rolled low carbon steel plate, sheet and strip

1734

Aluminium and aluminium alloys—Flat sheet, coiled sheet and plate

1866

Aluminium and aluminium alloys—Extruded rod, bar, solid and hollow shapes

1874

Aluminium and aluminium alloys—Ingots and castings

3678

Hot-rolled structural steel plate floor plate and slabs

3679

Hot-rolled structural steel bars and sections

purpose of this Standard Standard t he definitions given in AS 1576.1 and those 1.3 DEFINITIONS DEFINITIONS For the purpose below apply. 1.3.1 1.3.1 Adjustable Adjustable baseplat baseplatee —a baseplate embodying an adjustable leg. 1.3. 1.3.2 2 Adjustable Adjustable castor castor—a —a castor i ncorpor ncorporating ating a height-ad height-adjusting justing device device that fits inside the standard or vertical member of a scaffold. 1.3.3 1.3.3 Adjustable Adjustable leg—a leg—a threaded bar or tube with nut, designed to fit inside a standard to support the load from a standard, standard, and which is for levelling levelling purposes, purposes, in conjun conjunction ction with a baseplate, baseplate, forkhead or castor. —a fitting which joins two tubes. 1.3. 1.3.4 4 Coupler Coupler—a —a coupler for joining two tubes end-to-end. 1.3.5 1.3.5 End-to-end End-to-end coupler coupler—a load-bearing ng clamp for connecting connecting a tube to the flange of a structural structural 1.3. 1.3.6 6 Flange Flange clam clamp p—a load-beari member. Flange clamps may be rigid or swivelling. 1 0 0 2 p e S 5 0 n o g n i r e e n i g n E h g u o l C y b d e s s e c c A

1.3.7 1.3.7 Forkhead Forkhead—a —a U-shaped housing to support and locate a standard over a bearer or a bearer over a standard. A fork head may be fixed or adjustable. 1.3. 1.3.8 8 Joint Joint pin—an pin—an internal end-to-end coupler for joining two tubes. —a load-bearing coupler for making a lap or spliced j oint between between t wo tubes. 1.3.9 1.3.9 Parallel Parallel coupler coupler—a 1.3. 1.3.10 10 Pintle—a Pintle—a projection at the top of the castor used to locate the vertical members of the mobile scaffold frame. —a coupler coupler for fixing a putlog to a ledger. ledger. 1.3.11 1.3.11 Putlog coupler coupler—a 1.3.12 1.3.12 Putlog blade— blade— a fitting that that is fixed to the end of a putlog putlog permitting permitting it to be located and supported in a joint of a wall. 1.3.13 1.3.13 Right-angle Right-angle coupler coupler—a —a non-swivel load-bearing coupler, other than a putlog coupler, for connection two tubes at right angles. —an external end-to-end coupler for joining two tubes. 1.3.14 1.3.14 Sleeve coupler coupler—an —a coupler for connecting two tubes at any angle. 1.3.15 1.3.15 Swivel coupler coupler—a

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AS 1576.2—1991

accessory, excluding baseplate and spanner, spanner, shall be marked 1.4 MARKETING MARKETING Each coupler and accessory, with the manufacturer’s name or trademark. NOTE: Manufacturers making a statement of compliance with this Australian Standard on a product, or on packaging or promotional material related to that product, are advised to ensure that such compliance is capable of being verified. Independent Independent certif certif ication is available f rom Standard Standard Australia under under the StandardsMark StandardsMark Product Certification Scheme. Scheme. The StandardsMark, StandardsMark, shown below, is a registered certification trade mark owned by Standards Australia and granted under licence to manufacturers whose products comply comply with the requir ements ements of suitable Australian Australian Standards and who operate sound sound quality assurance assurance programs to ensure ensure consistent consistent product quality. Further information on product product certif ication and the suitability suitability of this Standard for certification is available available fr om Standards Standards Australia’s Quality Assurance Services, 1 The Crescent, Homebush, N.S.W., 2140.


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SECTION SECTION 2 MATERIALS MATERIALS 2.1 2.1 PROPERT PROPERTIES IES Where the properties of any material are in doubt, the material shall be subjected to such test or tests necessary to determine the properties concerned. 2.2 STEEL STEEL Steel couplers couplers and accessorie accessoriess shall shall be manufactu manufactured red from steel complying complying wi th AS 1444, AS 1594, AS 3678 a nd AS 3679, as appropriate. 2.3 2.3 ALUMINI ALUMINIUM UM Components f ormed by sand or permanent permanent gravity-mould casting methods methods 2.3.1 Cast compon components ents.. Components shall comply with AS 1874 and with the minimum mechanical properties given in Table 2.1. Pressure die casting shall not be used as a method of manufacture and the 700 series alloys shall not be used. TABLE 2.1 MINIMUM PROPERTIES FOR CAST COMPONENTS Tensile strength MPa

Elongation %

Sand c ast

20 5

3

Perm anen t m ou ld

22 0

5

Casting Method

2.3.2 2.3.2 Wrought Wrought components components Components made from wrought alloys shall comply with AS 1866 for extrusions and AS 1734 for sheet and plate, and shall comply with the minimum mechanical properties given in Table 2.2. TABLE 2.2. MINIMUM PROPERTIES FOR WROUGHT COMPONENTS Method of manufacture

Tensile strength MPa

0.2% proof stress, stress, MPa

Elongation %

Ex tr usio n

26 2

241

8

Pl at e

30 3

213

8


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AS 1576.2—1991

SECTION 3 DESIGN REQUIREMENTS 3.1 GENERA GENERAL L All couplers and accessories accessories shall be manufactured manufactured for fixing fixing to tube for which they have been designed to be used. 3.2 COUPLE COUPLERS RS 3.2.1 General General requiremen requirements ts Couplers shall comply with following: . (a) All couplers couplers shall shall be designed designed and constructe constructed d so that— (i)

when assembl assembled ed but before before being tightened, tightened, no part can become inadvertent inadvertently ly detached; detached; and

(ii)

when tightene tightened, d, the coupler coupler cannot be be inadverten inadvertently tly released. released.

(b) Couplers Couplers when used used as design designed ed shall not damage damage the scaffold scaffold tube. (c) The thinnest thinnest section of the body or flap of any coupler coupler shall shall not be less less than 4 mm thick. thick. (d) Threaded Threaded blind blind holes shall not be used. The design design of a coupler coupler shall shall be such that the engaged engaged length length of any threaded components can be readily determined when assembled. Where couplers incorporate nuts and bolts to effect tightening, they shall comply with the following requirements: (A) A tightening tightening bolt bolt shall comply comply with AS 1111 and shall have a shank not less than 11 mm diameter and threaded overall diameter not less than 12 mm diameter. (B) Nuts shall comply with the material requirements of AS of AS 1112 and shall be not less than 11 mm thick. Nuts shall be made captive captive on the bolt. (C) Washers Washers shall shall comply with AS 1237 and shall be not less than 1.6 mm thick. Washers shall be fitted beneath the nut, or be integral with the nut. (D) Except Except when the geometry geometry of the fitting is such that when tightened tightened the bolt is positively positively held held in position, a nib or recess shall be provided on the coupler to prevent the bolt from being displaced from the coupler when being tightened. (E) Hinge pins pins shall be steel of not less than 8 mm diameter, diameter, and shall be adequately adequately riveted riveted over or otherwise suitably prevented from becoming displaced. 3.2.2. Swivel Swivel couple couplers rs In addition to complying with the requirements listed under Clause 3.2.1., swivel couplers shall have a steel swivel pin not less than 200 mm 2 in area. The swivelling faces shall be smooth and in contact. This requirement shall not, however, prohibit a metal washer being interposed interposed between the faces of the coupler, provided that the coupler is no less efficient by the use of the washer. The heads of the pin shall be be well formed and free from any riveting defects. defects. NOTE: Because of wear of the swivel pin through use, swivel couplers should not be used to support direct loads such as those transmitted by standards.

3.2.3 End-toEnd-to-end end couplers couplers 3.2.3.1 General End-to-end couplers shall be self-centering, and shall accept an equal length of each of the tubes. Compliance Compliance with the above requirement requirement shall be achieved by means of a positive stop. Such stop shall provide an even surface and effective bearing area for the end of the tube which shall have been cut squarely. The bearing surface shall not, under normal loadings, distort the end of any tube with which it is in contact. 1 0 0 2 p e S 5 0 n o g n i r e e n i g n E h g u o l C y b d e s s e c c A

3.2.3.2 Internal types Each spigot of an internal type (joint pin) shall extend not less than 73 mm on the internal surface of each tube they connect with. The spigot shall be capable of being expanded within a tube with it is engaged. engaged. (sleeve couplers) shall have a length length of contact not less than 73 mm 3.2.3.3 External types External types (sleeve on each tube tube they connect, connect, and shall provide provide an an effective effective grip between the tube and the coupler. coupler. They shall have not less than two tightening tightening bolts, one on each half of the fitting. fitting. The requirements of Clause 3.2.1(A) may be varied for end-to-end couplers so that bolts less than 12 mm overall diameter may be used provided that the nuts comply with Clause 3.2.1(B). Washers are not required required where the fitting fitting provides provides a good bearing bearing surface for the nut. 3.3. ACCESSORIES 3.3.1 Baseplate Baseplate A baseplate shall be a minimum area of 22 500 mm 2, a minimum length or width of 100 mm and a minimum thickness of 6 mm. Securely attached to the centre of the upper surface shall be a shank not less than 50 mm long nor less than 16 mm diameter or equivalent cross-sectional area, which shall be a loose fit to allow insertion of its full length inside the tube. The upper surface of the baseplate shall provide a smooth and even bearing for the end of a scaffold tube and shall be such as not to damage or distort the tube or itself itself be damaged damaged or distorted distorted under working load.

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3.3.2 Adjustab Adjustable le legs Adjustable legs shall comply with the following requirements: (a) They shall shall have an extensio extension n not exceeding exceeding 600 mm. (b) When fully extende extended, d, a 150 mm length of the spindle spindle shall remain remain in the tube an this engagement engagement shall be mechanically ensured by a permanently fixed stop. When the difference between the outside diameter of the spindle and the inside diameter of the scaffold standard is greater than 5 mm, a washer or spacer shall be fixed at the top of the spindle to reduce the difference in diameter to 5 mm or less. less. The nut shall shall incorpor incorporate ate a spigot spigot or socket socket which which shall have a maximu maximum m diamet diametric rical al clearance of not more than 3 mm and a depth of not less than 3 mm (see figure 3.1). (c) The length length of the thread thread in the adjusting adjusting nut shall shall be not less than 0.875 times times the nominal thread thread diameter.

DIMENSIONS IN MILLIMETRES

FIGURE 3.1 ADJUSTABLE LEG SPINDLE


3.3.3 Platform Platform bracket bracket A platform bracket shall be designed for the loads given in AS 1576.1 and so that it cannot cannot be accidentally accidentally displaced displaced or rotate rotate when in use. A stop not less than 38 mm high shall be permanently fixed to the outer end of the horizontal member to prevent dislodgment of planks. 3.3.4 Castors Castors Castors shall comply with the following requirements: (a) All castors castors shall shall be clearly marked with with the working load load limit as assembled. assembled. (b) The pintle pintle of a castor castor shall shall be not less than 150 mm long. long. The pintle pintle may be in the form of an internal spigot or external socket with a diametrical clearance between internal or external diameter of tube not exceeding 3 mm. (c) The castor castor shall shall not fall fall out of the end of the scaffol scaffold d tube when when the asse assembl mbly y is lifted lifted off the running surface. (d) The diameter diameter of the wheel wheel shall be not less than than 125 mm and the eccentricity eccentricity of of the axle axle relative relative to the pintle shall not exceed exceed 65 mm. (e) Wheels Wheels shall be either plain or fitted fitted with resilient resilient tyres. Tyres Tyres shall be of adequate adequate section and and properly fixed on to the wheel centre. Pneumatic tyre wheels shall not be used. (f)

A castor shall shall be provided with with an effective wheel wheel brake which cannot cannot be acciden accidentally tally released. released.

(g) The static static collapse load shall be not less than 3 times the working working load limit. COPYRIGHT

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3.3.5 3.3.5 Fork Fork head head Fork heads shall be concentric with the supporting member. The fork shall be formed from not less than 75 mm less than 75 mm deep.

×

6 mm steel plate to give plate to give a recess not

3.3.6 3.3.6 Putlo Putlog g blade blade In addition to the requirements of Clause 3.2.1, the following requirements shall apply to putlog blades: (a) The fitting shall contain contain a suitable stop to prevent the end of the tube from encroaching into the blade area. (b) The blade section section shall shall be constructe constructed d of minimum 75 mm long × 45 mm wide × 6 mm thick steel steel with the stop so positioned that the blade has at least 75 mm long bearing surface. The bearing surface may be tapered at the end to a thickness of not less than 5 mm and shall be not less than 60 mm long before tapering commences. 3.3.7 Spanner Spanner The spanner for tightening couplers shall have a handle not less than 200 mm nor more than 250 mm long. 3.3.8 3.3.8 Flange Flange clamp clampss The thinnest section bolt, nut and pin of a flange clamp shall comply with the requirements of Clause 3.2.1.


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SECTION 4 PERFORMANCE PERFORMANCE REQUIREMENTS REQUIREMENTS 4.1 COUPLE COUPLERS RS 4.1.1 General General The coupler shall be capable of being reassembled onto the scaffold tube for which it has been designed to be used, after each test. Swivel couplers shall freely swivel after each test. Distor Distortio tion n of the tube or tubes tubes due to the test with the couplers couplers shall shall not exceed exceed the follow following ing requirements: Local distortio distortion n = ≤

1.03

4.1.2 Right-angle coupler When tested in accordance with Appendix A, in each position of the coupler, a right-angle coupler shall not slip more than 6 mm at its contact face or rotate more than 50 mm as indicated by the pointer. When tested in accordance with Appendix B, in each position of the coupler, the right-angle coupler shall not distort more than 50 mm as indicated indicated by the pointer. accordance with with Appendix A, in each position position of the coupler, coupler, a 4.1.3 Swivel Swivel couple couplerr When tested in accordance swivel coupler shall not slip more than 6 mm at its contact face or rotate more than 100 mm as indicated by the pointer. pointer. When tested in accordance with Appendix B, in each position of the coupler, the swivel coupler shall not distort distort more than 175 mm, as indicated indicated by the pointer. pointer. When tested in accordance with Appendix C, the swivel coupler shall not fail. 4.1.4 Putlog Putlog coupler coupler When tested in accordance with Appendix C, a putlog coupler shall not have a visible visible gap between between the tubes, or the loaded tube slip on the coupler. coupler. When tested in accordance with Appendix D, the putlog coupler shall not slip on the tube. 4.1.5 End-to-end coupler When tested in accordance with Appendix E, an end-to-end coupler shall not slip on or in the tube. 4.1.6 Parallel Parallel coupler coupler splicing splicing test test Parallel couplers used to splice tubes when tested in accordance with Appendix Appendix F shall not slip more than 6 mm at their contact face. 4.2

ADJUST ADJUSTABL ABLE E LEG When tested in accordance with Appendix G, an adjustable leg shall not fail.

4.3 4.3 ADJU ADJUST STAB ABLE LE BASE BASEPL PLAT ATE E When tested in accordance with Appendix G, an adjustable baseplate shall not fail. 4.4. 4.4.

CAST CASTOR OR When tested in accordance with Appendix H, a castor shall not fail.

4.5 4.5 PUTL PUTLOG OG BL BLAD ADE E When tested in accordance with Appendix I, a putlog blade shall not show permanent set. clamps are used in pairs to connect connect a metal scaffold tube to tapered 4.6 4.6 FLAN FLANGE GE CLAM CLAMP P Flange clamps flange or universal beams and shall comply with Clause 4.1.1. 1 0 0 2 p e S 5 0 n o g n i r e e n i g n E h g u o l C y b d e s s e c c A

When tested in accordance with Appendix J, neither flange clamp shall show any permanent set. When tested in accordance accordance with Appendix Appendix K, the clamped clamped scaffold scaffold tube shall not not slip more than 6 mm at its contact contact face in relation relation to the flange of the beam. When tested in accordance with Appendix L, neither flange clamp shall slip more than 6 mm at its contact face along the flange of the beam.

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AS 1576.2—1991

APPEND APPENDIX IX A

SLIP TEST FOR RIGHT-ANGLE AND SWIVEL COUPLER (Normative) A1 SCOP SCOPE E This Appendix sets out the method for determining the slip of right-angle and swivel coupler on metal scaffold tube. A2 PRINCI PRINCIPLE PLE The coupler is fixed to two scaffold tubes at right angles. A predetermined force is applied to one of the tubes. The amount of slippage of the coupler on the other tube is measured, and the permanent rotation of the loaded tube is also measured. A3 APPARA APPARATUS TUS The following apparatus is required: (a) Test apparat apparatus us as as shown in Figure A1. (b) Scaffold Scaffold tube for which the coupler coupler has been designe designed d to be used with. with. (c) Torque Torque wrench wrench.. A4 PROCED PROCEDURE URE The procedure shall be as follows: (a) Fix the couple couplerr on new or as-new as-new galvanis galvanised ed steel steel scaffol scaffold d tube tube as shown shown in Figure Figure A1. The clamping clamping bolt on the coupler coupler shall be in the uppermost uppermost position. position. (b) Tighten Tighten the couple couplerr with a torque wrench wrench to a torque of of 54 N.m. (c) Subject Subject the coupler coupler to a force of 6 kN for 1 min. The force force shall be applied applied in the same manner as the test force. The force is to permit the coupler to bed in. All readings shall be taken after this force has been released. (d) Retighten Retighten the couple couplerr with a torque wrench wrench to a torque torque of 54 N.m. (e) Scribe a mark on the vertical tube immediately immediately above above the coupler. Read the pointer position position on the measuring rod. (f) Apply Apply a forc forcee of 12.5 12.5 kN for 1 min. min. (g) Remove Remove the force, scribe a new mark immediatel immediately y above the the coupler coupler and measure measure and record the amount amount of slip and the amount amount of rotation (from the measuring measuring rod). (h) Turn the coupler coupler over so that the clamping clamping bolt referred referred to in Step (a) is now the the lowest position. position. (i) Repeat Repeat Steps Steps (b) to (g). (g). (j)

Turn the coupler coupler so that the part of the coupler which which was previously previously attached attached to the horizontal horizontal tube tube is now attached attached to the vertical tube. The coupling bolt attaching the coupler to the horizonta horizontall tube to be in the uppermost uppermost position. position. (k) Repeat Repeat Steps Steps (b) (b) to (g). (l) Turn the coupler coupler over over so that the the clamping bolt referred referred to in Step (j) (j) is now in the lowest lowest position. position. (m) Repeat Repeat Steps (b) to (g). (g). A5 REPORT REPORT The report shall include the following information: (a) Type Type of of coup coupler ler.. (b) Manufactur Manufacturer’s er’s identific identification ation of coupler. coupler. 1 0 0 2 p e S 5 0 n o g n i r e e n i g n E h g u o l C y b d e s s e c c A

(c) Detailed Detailed and and numbered drawing drawing of the coupler. coupler. (d) Detailed Detailed description description,, drawing drawing or photograph photograph of the force-transmitt force-transmitting ing apparatus. apparatus. (e) Location Location of testin testing g facility. facility. (f) Date Date and and time of the test. test. (g) Names, Names, positions and and qualifications qualifications of personnel personnel carrying carrying out or supervisin supervising g the test. (h) Names, Names, positions positions and qualificatio qualifications ns of witnesses, witnesses, if any, to the test (i) (j)

Each page of of report shall shall be signed and dated by the person person responsi responsible ble for for the test. The test test force applied applied to the scaffold scaffold tube. tube.

(k) The amount amount of slip and and vertical vertical rotation, in millime millimetres, tres, for each coupler coupler position. position. (l) Whether Whether the coupler coupler passed passed or or failed failed the test. (m) A reference reference to this test method, method, i.e. AS 1576.2, Appendix Appendix A.

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NOTE: Coupler shown is swivel coupler.


FIGURE A1 SLIP TEST APPARATUS FOR RIGHT-ANGLE RIGHT-ANGLE AND SWIVEL COUPLER


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AS 1576.2—1991

APPEND APPENDIX IX B

DISTORTION TEST FOR RIGHT-ANGLE AND SWIVEL COUPLER (Normative) B1 SCOPE SCOPE This Appendix sets out the method for determining the distortion of right-angle and swivel coupler on metal scaffold tube. B2 PRINCIPLE PRINCIPLE The coupler is fixed to two scaffold tubes at right angles. The coupler is supported at the sides and back to prevent it moving down the tube. A predetermined force is applied to the other tube and the distortion distortion is measured after the force is removed. removed. B3 APPARA APPARATUS TUS The following apparatus is required: (a) Test apparat apparatus us as as shown in figure B1. (b) Scaffold Scaffold tube for which the coupler coupler has been designe designed d to be used with. with. (c) Torque Torque wrench wrench.. B4 TEST SPECIMEN SPECIMEN The test specimen, i.e. right-angle, or swivel, coupler shall have been previously tested in accordance with Appendix A. B5 PROCEDURE PROCEDURE The procedure is as follows: (a) Fix the coupler on new or as-new galvanised steel steel scaffold tube as shown in Figure B1. The clamping bolt on the coupler shall be in the uppermost position. (b) Tighten Tighten the coupler coupler by a torque wrench wrench to a torque of 54 N.m. (c) Subject Subject the coupler to a force force of 6.0 kN for 1 min. The force shall be applied in in the same manner manner as the test force. This force is to permit the the coupler coupler to bed in. All readings readings shall be taken after this force has been released. (d) Retighten Retighten the couple couplerr with a torque wrench wrench to a torque torque of 54 N.m. (e) Apply the following following force for for 1 min: min: (i) (i) For For a rig right ht-a -ang ngle le cou coupl pler er . . . . . . . . . . . . . 30 kN. kN. (f)

(ii) (ii) For For a swi swive vell coupl coupler er . . . . . . . . . . . . . . . . 15 kN. kN. Remove Remove the force and measure measure and record record the amount amount of distortion. distortion. This is measured measured by the pointer pointer on the measuring rod.

(g) Turn the coupler coupler over so that the clamping clamping bolt referred referred to in Step (a) is now in the lowest position. position. (h) Repeat Repeat Step Stepss (b) to to (f). (i)

(j)

Turn the the coupler so that the part part of the couple couplerr which was previously previously attache attached d to the horizon horizontal tal tube tube is now attached attached to the vertical tube. The coupling bolt attaching the coupler to the horizontal horizontal tube to be in the uppermost uppermost position. position. Repeat Repeat Steps Steps (b) to (f). (f).

(k) Turn the coupler coupler over so that the clamping clamping bolt referred referred to in Step (i) is now in the lowest positi position. on. (l) Repeat Repeat Steps Steps (b) to (f). (f). B6 REPORT REPORT The report shall include the following information: 1 0 0 2 p e S 5 0 n o g n i r e e n i g n E h g u o l C y b d e s s e c c A

(a) Type Type of of coup coupler ler.. (b) Manufactur Manufacturer’s er’s identific identification ation of coupler. coupler. (c) Detail Detail and numbered numbered drawing drawing of of the coupler. coupler. (d) Detailed Detailed description description,, drawing drawing or photograph photograph of the force-transmitt force-transmitting ing device. (e) Location Location of testin testing g facility. facility. (f) Date Date and and time of the test. test. (g) Names, Names, positions and and qualifications qualifications of personnel personnel carrying carrying out or supervisin supervising g the test. (h) Names, Names, positions positions and qualificatio qualifications ns of witnesses, witnesses, if any, to the test. (i) (j)

Each page of of report shall shall be signed and dated by the person person responsi responsible ble for for the test. The test test force applied applied to the scaffold scaffold tube. tube.

(k) The amount amount of vertical vertical deflecti deflection, on, in millimetres, millimetres, for each coupler position. position. (l) Whether Whether the coupler coupler passed passed or or failed failed the test. (m) A reference reference to this test method, method, i.e. AS 1576.2, Appendix Appendix B.

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NOTE: Coupler shown is swivel coupler.


FIGURE B1 DISTORTION TEST APPARATUS FOR RIGHT-ANGLE AND SWIVEL COUPLER


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AS 1576.2—1991

APPEND APPENDIX IX C

STRENGTH TEST FOR SWIVEL AND PUTLOG COUPLER (Normative) C1 SCOP SCOPE E This Appendix sets out the method for determining the strength of a swivel and putlog coupler on metal scaffold tube. C2 PRINCI PRINCIPLE PLE The coupler is fixed to two scaffold tubes at right angles. A predetermined force is applied to one of the tubes. C3 APPARA APPARATUS TUS The following apparatus is required: (a) Test appara apparatus tus as shown shown in Fig C1. (b) Scaffold Scaffold tube for which the coupler coupler has been designe designed d to be used with. with. (c) Torque Torque wrench wrench.. C4 PROCED PROCEDURE URE The procedure is as follows: (a) Fix the coupler on on new or as-new as-new galvanised galvanised steel steel scaffold scaffold tube as shown in Figure C1 C1 for a swivel swivel coupler coupler and Figure C2 for a putlog coupler. coupler. (b) Tighten Tighten the coupler coupler by a torque wrench wrench to a torque of 54 N.m. (c) Apply the following following force for for 1 min: min: (i) (i)

For For a swiv swivel el cou coupl pler er . . . . . . . . . . . . . . . . 30 kN kN

(ii) (ii)

For For a put putlo log g coup couple lerr . . . . . . . . . . . . . . . . 2.3 2.3 kN. kN.

(d) Remove Remove the force force and record whether— whether— (i)

the swivel swivel couple couplerr failed failed;; or

(ii)

the putlog coupler coupler had any any visible visible gap between between the tubes, tubes, or the loaded tube can be moved moved by hand.

C5 REPORT REPORT The report shall include the following information: (a) Type Type of of coup coupler ler.. (b) Manufactur Manufacturer’s er’s identific identification ation of coupler. coupler. (c) Detailed Detailed and and numbered drawing drawing of the coupler. coupler. (d) Detailed Detailed description description,, drawing drawing or photograph photograph of the force-transmitt force-transmitting ing device. (e) Location Location of testin testing g facility. facility. (f)

Date Date and and time of the test. test.

(g) Names, Names, positions and and qualifications qualifications of personnel personnel carrying carrying out or supervisin supervising g the test. (h) Names, Names, positions positions and qualificatio qualifications ns of witnesses, witnesses, if any, to the test.


(i)

Each page of of report shall shall be signed and dated by the person person responsi responsible ble for for the test.

(j)

The test test force applied applied to the scaffold scaffold tube. tube.

(k) Results Results of test as follows: follows:

(l)

(i)

Whethe Whetherr the swivel swivel couple couplerr failed failed..

(ii)

Whether Whether for the putlog putlog coupler coupler there is any any visible visible gap between between the tubes or if if the loaded loaded tube can be moved by hand.

Whether Whether the coupler coupler passed passed or or failed failed the test.

(m) A reference reference to this test method, method, i.e. AS 1576.2, Appendix Appendix C.

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FIGURE C1 STRENGTH TEST APPARATUS FOR FOR SWIVEL SWIVEL COUPLER


FIGURE C2 STRENGTH TEST APPARATUS FOR PUTLOG COUPLER


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AS 1576.2—1991

APPEND APPENDIX IX D

SLIP TEST FOR PUTLOG COUPLER (Normative) Appendix sets out the method method for determining determining the slip slip of a putlog coupler coupler on metal D1 SCOP SCOPE E This Appendix scaffold tube. D2 PRINCI PRINCIPLE PLE The coupler is fixed to two scaffold scaffold tubes at at right angles. angles. A predetermin predetermined ed force is applied applied to one of the tubes. tubes. The amount of slippage of the coupler coupler on the tube is measured. measured. D3 APPARA APPARATUS TUS The following apparatus is required: (a) Test apparat apparatus us as as shown in Figure D1. (b) Scaffold Scaffold tube for which the coupler coupler has been designe designed d to be used with. with. (c) Torque Torque wrench wrench.. D4 TEST SPECIMEN SPECIMEN The test specimen, i.e. the putlog coupler, shall have been previously tested in accordance with Appendix C. D5 PROCED PROCEDURE URE The procedure is as follows: (a) Fix the coupler coupler on new or as-new as-new galvanise galvanised d steel steel scaffold scaffold tube as shown shown in Figure D1. (b) Tighten Tighten the coupler coupler by a torque wrench wrench to a torque of 54 N.m. (c) Scribe a mark on the vertical vertical tube immedia immediately tely above the the coupler. coupler. (d) Apply a test force force of 1.25 kN for 1 min. (e) Remove the force, scribe a new mark immediately above the coupler and record whether the coupler slipped slipped on the tube, and, if so, the amount amount of slip in millimetres. millimetres. D6 REPORT REPORT The report shall include the following information: (a) Type Type of of coup coupler ler.. (b) Manufactur Manufacturer’s er’s identific identification ation of coupler. coupler. (c) Detailed Detailed and and numbered drawing drawing of the coupler. coupler. (d) Detailed Detailed description description,, drawing drawing or photograph photograph of the force-transmitt force-transmitting ing device. (e) Location Location of testin testing g facility. facility. (f)


(g) Names, Names, positions and and qualifications qualifications of personnel personnel carrying carrying out or supervisin supervising g the test. (h) Names, Names, positions positions and qualificatio qualifications ns of witnesses, witnesses, if any, to the test. (i)


(j)


(k) Whether Whether the putlog tube tube slipped in the coupler, coupler, and, and, if so, the amount of slip in millimetres millimetres.. (l) 1 0 0 2 p e S 5 0 n o g n i r e e n i g n E h g u o l C y b d e s s e c c A


(m) A reference reference to this test method, method, i.e. AS 1576.2, Appendix Appendix D.

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FIGURE D1 SLIP TEST APPARATUS APPARATUS FOR PUTLOG COUPLERS COUPLERS


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AS 1576.2—1991

APPEND APPENDIX IX E

SLIP TEST FOR END-TO-END COUPLER (Normative) E1 SCOP SCOPE E This Appendix sets out the method for determining the slip of an end-to-end coupler on or in metal scaffold tubing. E2 PRINCIPL PRINCIPLE E The coupler connects two scaffold tubes. A predetermined force is applied to the coupler. coupler. Any slippage of the coupler on the tube is observed. observed. E3 APPARA APPARATUS TUS The following apparatus is required: (a) Test apparat apparatus us as as shown in Figure E1. (b) Scaffold Scaffold tube for which the coupler coupler has been designe designed d to be used with. with. (c) Torque Torque wrench wrench.. E4 PROCEDURE PROCEDURE The procedure is as follows: (a) Fix the coupler to be tested on new or as-new galvanised steel scaffold tube as shown in Figure E1. (b) Tighten Tighten the coupler coupler by a torque wrench wrench to a torque of 54 N.m. (c) Scribe a mark on the tube tube immediat immediately ely above above the coupler. coupler. (d) Apply Apply a test test force of of 2.3 kN for 1 min. min. (e) Remove the force, scribe a new mark on the tube immediately above the coupler and record whether the coupler coupler slipped slipped on or in the tube, tube, and, if so, the amount amount of slip in millimetre millimetres. s. E5 REPORT REPORT The report shall include the following information: (a) Type Type of of coup coupler ler.. (b) Manufactur Manufacturer’s er’s identific identification ation of coupler. coupler. (c) Detailed Detailed and and numbered drawing drawing of the coupler. coupler. (d) Detailed Detailed description description,, drawing drawing or photograph photograph of the force-transmitt force-transmitting ing device. (e) Location Location of testin testing g facility. facility. (f)


(g) Names, Names, positions and and qualifications qualifications of personnel personnel carrying carrying out or supervisin supervising g the test. (h) Names, Names, positions positions and qualificatio qualifications ns of witnesses, witnesses, if any, to the test. (i)


(j)


(k) Whet Whethe herr the the endend-to to-e -end nd couple couplerr slip slippe ped d on or in the tube tube,, and, and, if so, so, the the amou amount nt of slip slip in millimetres. (l)


(m) A reference reference to this test method, method, i.e. AS 1576.2, Appendix Appendix E. 1 0 0 2 p e S 5 0 n o g n i r e e n i g n E h g u o l C y b d e s s e c c A

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FIGURE E1 SLIP TEST APPARATUS FOR END-TO-END END-TO-END COUPLER COUPLER


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AS 1576.2—1991

APPEND APPENDIX IX F

SPLICING TEST FOR PARALLEL COUPLERS (Normative) Appendix sets out the method for determining the slip of two parallel parallel couplers used used F1 SCOP SCOPE E This Appendix to splice metal scaffold tube in a tension condition. F2 PRINCIPL PRINCIPLE E Two parallel parallel couplers connect connect two parallel scaffold scaffold tubes. A predetermined predetermined force is applied. Any slippage of the couplers on the tubes is observed. F3 APPARA APPARATUS TUS The following apparatus is required: (a) Test apparat apparatus us as as shown in Figure F1. (b) Scaffold Scaffold tube for which the coupler coupler has been designe designed d to be used with. with. (c) Torque Torque wrench wrench.. F4 PROCED PROCEDURE URE The procedure is as follows: (a) Fix the couplers to be tested on new or as-new galvanised steel scaffold tube as shown in Figure F1. (b) Tighten Tighten the coupler coupler with a torque torque wrench to a torque torque of 54 N.m. (c) Subject Subject the coupler to a force of 6 kN for 1 min. The force shall shall be applied applied in the same same manner manner as the test force. The force is to permit the coupler to bed in. All readings shall be taken after this force has been released. (d) Re-tighten the couplers by a torque wrench to a torque of 54 N.m, and mark the coupler position on all tubes. (e) Scribe a mark on the tubes immedia immediately tely above both couplers. couplers. (f)

Apply Apply a test test force force of 12.5 12.5 kN for 1 min. min.

(g) Remove Remove the force, scribe new marks marks on the tubes immediately immediately above above both couplers couplers and record, in millimetres, the amount of slip of the couplers on the tubes and any change in gap between the tubes. F5 REPOR REPORT T The report shall include the following information: (a) Type Type of of coup coupler ler.. (b) Manufactur Manufacturer’s er’s identific identification ation of coupler. coupler. (c) Detailed Detailed and and numbered drawing drawing of the coupler. coupler. (d) Detailed Detailed description description,, drawing drawing or photograph photograph of the force-transmitt force-transmitting ing device. (e) Location Location of testin testing g facility. facility. (f)




(i)


(j)


(k) The amount amount of slip in millimetres millimetres of of each coupler coupler on each tube. tube. (l)

Whether Whether the coupler couplerss passed passed or failed failed the test. test.

(m) A reference reference to this test method, method, i.e. AS 1576.2, Appendix Appendix F.

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FIGURE F1 TEST APPARATUS FOR SPLICING SPLICING TEST FOR PARALLEL PARALLEL COUPLERS


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AS 1576.2—1991

APPEND APPENDIX IX G

TEST FOR ADJUSTABLE LEG AND ADJUSTABLE BASEPLATE (Normative) determining the strength of an adjustable adjustable leg and G1 SCOPE SCOPE This Appendix sets out the method for determining an adjustable baseplate. An adjustable leg is converted to an adjustable baseplate for testing purposes to gauge the effect of an eccentric eccentric load on the leg. G2 PRINCIPL PRINCIPLE E The adjustable leg or baseplate has one end fitted inside a scaffold tube with the maximum maximum extension extension of thread thread shank projecting. projecting. A predetermin predetermined ed force is applied applied to the assembly. The strength of the adjustable leg or baseplate is measured as a function of the movability of the adjusting nut and straightness of the shank after the load is removed. G3 APPARATUS APPARATUS The following apparatus is required: (a) A device capable capable of applying a compressive compressive load between between two platens platens as shown shown in Figure G1. (b) A 300 mm minimum length length of scaffold scaffold tube with ends square square to tube axis. axis. (c) A steel steel plate plate tapered tapered to a slope of of 1 in 10. G4 PROCEDURE The procedure is as follows: (a) Set the adjusting adjusting nut of the adjustable adjustable leg or baseplate to the maximum maximum working working extension extension of the shank. Check the straightness of the shank in three positions 45 degrees apart and record any deviation. (b) Fit the tube over the adjustab adjustable le leg leg or baseplate and place the assembly assembly on on the tapere tapered d plate between between the testing machine platens. (c) Measure Measure and record the distance distance between the the underside underside of the adjusting nut nut and lower lower machine platen. (d) Apply Apply a force force of 60 60 kN for a period period of 15 min. min. (e) Remove Remove the force, measure measure and record the distance distance between between the underside underside of the adjusting adjusting nut nut and lower machine platen. (f)

Measure Measure and record the straigh straightness tness of the the shank in the same positions positions as before before the test. test.

(g) Determine and record the ease with which the adjusting nut can be turned by hand for the full depth of the nut upwards and downwards from the test position. G5 REPOR REPORT T The report shall include the following information: (a) Manufactur Manufacturer’s er’s identific identification ation of adjustable adjustable leg or baseplate. baseplate. (b) Detailed Detailed and numbered numbered drawing of the adjustabl adjustablee leg or baseplate. baseplate. (c) A detailed descripti description, on, drawing or or photograph photograph of the force-transm force-transmitting itting apparatus. apparatus. (d) Location Location of of testing testing facilit facility. y. (e) Date Date and time time of of the test. test. (f) 1 0 0 2 p e S 5 0 n o g n i r e e n i g n E h g u o l C y b d e s s e c c A

Names, Names, positions positions and qualificatio qualifications ns of personnel personnel carrying carrying out or supervising supervising the test.

(g) Names, Names, positions positions and qualificatio qualifications ns of witnesses, witnesses, if any, to the test. (h) Each page of report report shall be signed and dated dated by the person person responsible responsible for for the test. test. (i)

The test force applied applied to the scaffold scaffold tube/adjus tube/adjustable table leg or basepla baseplate te assembly. assembly.

(j)

The vertical deflection of the adjusting nut, the change change in straightness of the shank, and and the ease with which the adjusting nut can be turned by hand for the full depth of the nut upwards and downwards from the test position.

(k) A statement whether the adjustable leg or baseplate baseplate has failed or not failed. failed. Failure is determined by–

(l)

(i)

the change change in straightne straightness ss of the shank shank if it exceeds exceeds 2 mm; or

(ii) (ii)

the inabil inability ity to turn by hand hand the adjustin adjusting g nut for the full full depth depth of the nut upward upwardss and downwards from the test position.

A reference reference to this test method, method, i.e. AS 1576.2, 1576.2, Appendix Appendix G.

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NOTE: Adjustable bases to be tested with their normal baseplate.


FIGURE G1 TEST APPARATUS APPARATUS FOR ADJUSTABLE LEG OR BASEPLATE

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AS 1576.2—1991

APPEND APPENDIX IX H

TEST FOR CASTOR (Normative) Appendix sets out the method for determining determining the strength strength of a castor. castor. H1 SCOPE SCOPE This Appendix H2 PRINCIPL PRINCIPLE E A predetermined force is applied to the castor and the permanent set, if any, is measured and reported. H3 APPARATUS APPARATUS A device capable of applying a compressive load between two platens and retaining the castor during loading. H4 PROCEDUR PROCEDURE E The procedure is as follows: (a) Fit the castor between between the testing testing machine machine platens platens and apply apply the brake. (b) Apply for for a period period of 15 min a force of 1 1 / 2 times the rated load during which time the castor shall not develop a permanent set. Following this, for a period of 15 min, apply a force of 3 times the rated load during which time the castor shall not collapse. c)

Remove Remove the the force and and measure measure and record record any permanen permanentt set.

H5 REPOR REPORT T The report shall include the following information: (a) Manufactur Manufacturer’s er’s identi identificati fication on of castor. castor. (b) Detailed Detailed and and numbered drawing drawing of the castor. castor. (c) A detailed descripti description, on, drawing or or photograph photograph of the force-transm force-transmitting itting apparatus. apparatus. (d) Location Location of of testing testing facilit facility. y. (e) Date Date and time time of of the test. test. (f)


(g) Names, Names, positions positions and qualificatio qualifications ns of witnesses, witnesses, if any, to the test. h)

Each page page of report report shall be signed and dated by by the person person responsibl responsiblee for the test. test.

i)

The test test force force applie applied d to to the castor. castor.

(j)

The amount amount of of permane permanent nt set. set.

(k) Where the castor castor passed or failed failed the test. test. (l)

A reference reference to this test method, method, i.e. AS 1576.2, 1576.2, Appendix Appendix H.


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APPEND APPENDIX IX I

TEST FOR PUTLOG BLADE (Normative) Appendix sets out the method method for determining determining the strength of a putlog blade. I1 SCOP SCOPE E This Appendix I2 PRINCIPL PRINCIPLE E The putlog blade is attached to a putlog tube. A predetermined force is applied to the tube adjacent to the fitting. The permanent set, if any, is measured and reported. I3 APPARA APPARATUS TUS The following apparatus is required: (a) Support Support arrangemen arrangementt as shown shown in Figure Figure I1. I1. (b) Scaffold Scaffold tube for which the putlog putlog blade has been designe designed d to be used with. (c) Torque Torque wrench wrench.. I4 PROCEDUR PROCEDURE E The procedure is as follows: (a) Fix the putlog putlog blade on new or as-new galvanize galvanized d steel scaffold scaffold tube as shown shown in Figure I1. (b) Tighten Tighten the bolt on the putlog putlog blade with with a torque wrench wrench to a torque torque of 54 N.m. (c) Support Support the tube and putlog putlog blade as shown in Position Position A in Figure I1. I1. (d) Apply to the tube, as as close as practicable to the connection of the putlog blade, a force of 4.5 kN for 1 min. (e) Remove Remove the force and measure measure and record any any permanent permanent set. (f)

If there is no permanen permanentt set support support the tube tube and putlog putlog blade blade as shown shown in Position B in Figure I1.

(g) Repeat Repeat Steps Steps (d) (d) and (e). I5 REPOR REPORT T The report shall include the following information: (a) Manufactur Manufacturer’s er’s identifi identificatio cation n of putlog blade. blade. (b) Detailed Detailed and and numbered drawing drawing of the putlog putlog blade. blade. (c) A detailed descripti description, on, drawing or or photograph photograph of the force-transm force-transmitting itting apparatus. apparatus. (d) Location Location of of testing testing facilit facility. y. (e) Date Date and time time of of the test. test. (f)



The test force force applied applied to to the tube.

(j)

The distance distance of the point point of applicatio application n of the test force force from the inboard inboard end of the putlog putlog blade.

(k) The amount amount of permanent set for Position Position A and for for Position B. (l)

Whether Whether the putlog putlog blade blade passed passed or failed the test.

(m) A reference reference to this test method, method, i.e. AS 1576.2, Appendix Appendix I. 1 0 0 2 p e S 5 0 n o g n i r e e n i g n E h g u o l C y b d e s s e c c A

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FIGURE I1 TEST APPARATUS FOR PUTLOG BLADE


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APPEND APPENDIX IX J

STRENGTH TEST FOR FLANGE CLAMP (Normative) J1 SCOP SCOPE E This Appendix sets out the method for determining the strength of a pair of rigid or swivel flange clamps. J2 PRINCI PRINCIPLE PLE Two flange clamps are attached to a scaffold tube and tapered flange or universal beam. A predetermined tensile force is applied and permanent set, if any, is measured and reported. J3 APPARA APPARATUS TUS The following apparatus is required: (a) A device capabl capablee of applying applying a tensile tensile load load as shown in Figure J1. (b) Test apparatu apparatuss as shown shown in Figure J1. J4 PROCED PROCEDURE URE The procedure is as follows: (a) Fix the clamp clamp in the test test apparatus as shown in Figure J1. (b) Tighten Tighten the clamp clamp with a torque wrench wrench to a torque of of 54 N.m. (c) Subject Subject the clamp clamp to a tensile tensile load of 30 kN for 1 min. min. (d) Remove Remove the force and record record whether the clamps clamps showed showed any permanent permanent set. set. J5 REPORT The report shall include the following information: (a) Manufactur Manufacturer’s er’s identi identificati fication on of clamp. clamp. (b) Detailed Detailed and and numbered drawing drawing of the clamp. clamp. (c) Detailed Detailed description description,, drawing drawing or photograph photograph of the force-transmitti force-transmitting ng device. (d) Location Location of of testing testing facilit facility. y. (e) Date Date and time time of of the test. test. (f)



The test force force applied applied to to the clamp. clamp.

(j)

Whether Whether the clamp passed passed or or failed the test.

(k) A reference reference to this this test method, i.e. AS 1576.2, 1576.2, Appendix Appendix J.


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FIGURE J1 TEST APPARATUS FOR RIGID AND SWIVEL FLANGE CLAMP


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APPEND APPENDIX IX K

SLIP TEST THROUGH RIGID AND SWIVEL FLANGE CLAMPS (Normative) K1 SCOPE SCOPE This Appendix sets out the method for determining the slip of a metal scaffold tube through a pair of rigid or swivel flange flange clamps. K2 PRINCIPL PRINCIPLE E Two flange clamps, rigid or swivel, attach a scaffold tube to a tapered flange or universal universal beam. A predetermin predetermined ed axial force is applied applied to the tube. The amount of slippage slippage of the tube relative to the beam flange is measured. K3 APPARATUS APPARATUS The following apparatus is required: (a) Test apparat apparatus us as as shown in Figure K1. (b) Scaffold Scaffold tube for which the flange flange clamps have have been designed designed to be used with. (c) Torque Torque wrench wrench.. K4 PROCEDUR PROCEDURE E The procedure is as follows: (a) Fix a pair of clamps, clamps, rigid rigid or swivel, swivel, to hold a new or as-new galvanis galvanised ed steel tube tube to a flange of a steel beam. The surface of the beam shall be clean and free of mill scale, rust or paint. For swivel clamps, clamps, the tube shall shall be fixed in the same orientatio orientation n as for the rigid clamps. (b) Tighten Tighten the clamp clamp bolts with a torque torque wrench wrench to a torque of 54 N.m. (c) Apply to to the tube tube an axial force of of 6 kN for 1 min. The force is to permit the flange flange clamps to bed in. All readings shall be taken after this force has been released. (d) Retighten Retighten the flange flange clamps with a torque torque wrench to a torque torque of 54 N.m. (e) Scribe a mark on the tube tube in line with one edge of the beam beam flange. flange. (f)

Apply to the tube tube an axial axial force force of 12.5 12.5 kN for 1 min.

(g) Remove Remove the force and and scribe a new mark on the tube tube in line with the same same edge of the beam flange flange as in Step (e). Measure Measure and read the amount amount of slip. K5 REPOR REPORT T The report shall include the following information: (a) Type Type of flange flange clamp. clamp. (b) Manufactur Manufacturer’s er’s identific identification ation of flange clamp. clamp. (c) Detailed Detailed and and numbered drawing drawing of the flange flange clamp. clamp. (d) Detailed Detailed description description,, drawing drawing or photograph photograph of the force-transmitt force-transmitting ing apparatus. apparatus. (e) Location Location of testin testing g facility. facility. (f)




(i)


(j)


(k) The amount amount of slip, in millimetres, millimetres, of the the tube. tube. (l)

Whether Whether the flange flange clamps clamps passed passed or failed failed the the test. test.

(m) A reference reference to this test method, method, i.e. AS 1576.2, Appendix Appendix K.

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AS 1576.2—1991

FIGURE K1 TEST APPARATUS FOR SLIP OF TUBE THROUGH THROUGH THE FLANGE CLAMPS


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AS 1576.2—1991

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APPEND APPENDIX IX L

SLIP TEST OF RIGID AND SWIVEL FLANGE CLAMPS (Normative) L1 SCOP SCOPE E This Appendix sets out the method for determining the slip of flange clamps along the flange of the beam. L2 PRINCIPL PRINCIPLE E Two flange clamps, rigid or swivel, swivel, attach a metal scaffold scaffold tube to a tapered tapered flange flange or universal beam. A predetermined transverse force is applied to the tube. The amount of slippage of both flange clamps along the beam flange is measured. L3 APPARA APPARATUS TUS The following apparatus is required: (a) Test apparat apparatus us as as shown in Figure L1. (b) Scaffold Scaffold tube for which the flange flange clamps have have been designed designed to be used with. (c) Torque Torque wrench wrench.. L4 PROCEDURE PROCEDURE The procedure is as follows: (a) Fix a pair of clamps, clamps, rigid rigid or swivel, swivel, to hold a new or as-new galvanis galvanised ed steel tube tube to a flange of a steel beam. The surface of the beam shall be clean and free of mill scale, rust or paint. For swivel clamps, clamps, the tube shall shall be fixed in the same orientatio orientation n as for the rigid clamps. (b) Tighten Tighten the clamp clamp bolts with a torque torque wrench wrench to a torque of 54 N.m. (c) Apply to the tube a transverse transverse force force of 6 kN for 1 min. The force force is to permit the flange flange clamps to bed in. All readings readings shall be taken after after this force force has been been released. released. (d) Retighten Retighten the flange flange clamps with a torque torque wrench to a torque torque of 54 N.m. (e) Scribe marks marks on the beam flange in line with with the top of the flange flange clamps. clamps. (f)

Apply to the tube tube a transvers transversee force force of 12.5 12.5 kN for 1 min.

(g) Remove the force and scribe new marks on the beam flange in line with the top of the flange clamps. Measure Measure and record record the slip of each clamp along the beam flange. L5 REPORT REPORT The report shall include the following information: (a) Type Type of flange flange clamp. clamp. (b) Manufactur Manufacturer’s er’s identific identification ation of flange clamp. clamp. (c) Detailed Detailed and and numbered drawing drawing of the flange flange clamp. clamp. (d) Detailed Detailed description description,, drawing drawing or photograph photograph of the force-transmitt force-transmitting ing apparatus. apparatus. (e) Location Location of testin testing g facility. facility. (f)




(i)


(j)


(k) The amount amount of slip, in millimetres millimetres,, for each flange flange clamp. clamp. (l)


(m) A reference reference to this test method, method, i.e. AS 1576.2, Appendix Appendix L.

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FIGURE L1 TEST APPARATUS FOR SLIP OF FLANGE CLAMP ALONG ALONG A FLANGE


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AS 1576.2—1991


As 1576.2 Scaffolding Couplers & Accessories

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