1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 16031:2012Adjustable telescopicaluminium props Productspecifications, design andassessment by calculation andtestsCopyright European Committee for Standardization Provided
2、by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 16031:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 16031:2012.The UK participation in its preparation was entrusted to TechnicalCommitte
3、e B/514, Access and support equipment.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Insti
4、tution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 76455 4ICS 91.220Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June 2012.Amendments issued s
5、ince publicationDate Text affectedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 16031:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16031 May 2012 ICS 91.220 E
6、nglish Version Adjustable telescopic aluminium props - Product specifications, design and assessment by calculation and tests Etais tlescopiques rglables en aluminium - Spcifications du produit, conception et valuation par calculs et essais Bausttzen aus Aluminium mit Ausziehvorrichtung - Produktfes
7、tlegungen, Bemessung und Nachweis durch Berechnung und Versuche This European Standard was approved by CEN on 28 April 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard wi
8、thout any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any othe
9、r language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic,
10、Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN
11、DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16031:2012: ECopyright European Committee for Standardization Provided by IHS
12、 under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 16031:2012EN 16031:2012 (E) 2 Contents PageForeword 4Introduction . 51 Scope 62 Normative references 63 Terms and definitions . 64 Symbols 95 Classification . 106 Designations 117 Material
13、s . 128 Requirements . 128.1 Tubes 128.2 Welding . 128.3 Length adjustment device 128.4 Permanent prevention against unintentional disengagement 128.5 Anti hand trap 138.6 Overlapping length 138.7 Endplates 149 Verification . 149.1 General 149.2 Calculation of prop strength. 159.2.1 General 159.2.2
14、Imperfections . 159.2.3 Behaviours of inner and outer tube . 179.2.4 Boundary conditions . 179.2.5 Verification of prop strength 219.3 Verification of the strength of length adjustment device 229.4 Verification of the prevention against unintentional disengagement 229.5 Confirmation of the calculati
15、on results by testing . 2210 Tests 2210.1 General 2210.2 Detail tests 2210.2.1 Compression tests on unthreaded tubes 2210.2.2 Compression tests on threaded tube 2310.2.3 Bending tests on threaded tube . 2510.2.4 Tests for the limit eccentricities of prop ends 2710.2.5 Compression tests on length adj
16、ustment device 3010.3 Test of the prevention against unintentional disengagement 3010.3.1 Purpose of test . 3010.3.2 Test arrangement . 3110.3.3 Evaluation of test results 3110.4 Confirmation test for the prop strength 3110.4.1 Material properties . 3110.4.2 Global test 3211 Documentation of test re
17、sults 32Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 16031:2012EN 16031:2012 (E) 3 Page12 Marking . 3213 Assessment . 3314 User manual . 33Annex A (informative) Ongoing
18、production control 34Bibliography 36Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 16031:2012EN 16031:2012 (E) 4 Foreword This document (EN 16031:2012) has been prepared b
19、y Technical Committee CEN/TC 053 “Temporary works equipment”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2012, and conflicting national stand
20、ards shall be withdrawn at the latest by November 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC I
21、nternal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Lu
22、xembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license
23、 from IHS-,-,-BS EN 16031:2012EN 16031:2012 (E) 5 Introduction This European Standard deals with the more common types of adjustable telescopic aluminium props in current use. It is not intended to prevent development of other types of props. For example, props may have hinged ends or other length a
24、djustment devices or be made of other materials. Whilst such props cannot comply with this European Standard, it is nevertheless recommended that the principals of this European Standard be considered in the design and assessment of such props. This European Standard is a product standard primarily
25、for use in the field of falsework and formwork standardized in EN 12812. The specified values for load bearing capacity listed in this European Standard are figures for classification. For site use, F and M can be found in EN 12812. Copyright European Committee for Standardization Provided by IHS un
26、der license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 16031:2012EN 16031:2012 (E) 6 1 Scope This European Standard specifies materials, design requirements and designation together with assessment methods using both calculations and testing for
27、adjustable telescopic aluminium props which are intended for use on construction sites. It outlines eleven classes of nominal specified values for strengths for adjustable telescopic aluminium props, each having a series of maximum extended lengths. 2 Normative references The following documents, in
28、 whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 74-1, Couplers, spigot pins and
29、 baseplates for use in falsework and scaffolds Part 1: Couplers for tubes Requirements and test procedures EN 74-2, Couplers, spigot pins and baseplates for use in falsework and scaffolds Part 2: Special couplers Requirements and test procedures EN 1999-1-1, Eurocode 9: Design of aluminium structure
30、s Part 1-1: General structural rules EN 1065:1998, Adjustable telescopic steel props Product specifications, design and assessment by calculation and tests EN 1090-3:2008, Execution of steel structures and aluminium structures Part 3: Technical requirements for aluminium structures EN 10204:2004, Me
31、tallic materials Types of inspection documents EN 12811-1, Temporary works equipment Part 1: Scaffolds Performance requirements and general design EN 12811-2:2004, Temporary works equipment Part 2: Information on materials EN 12811-3:2002, Temporary works equipment Part 3: Load testing EN 12812, Fal
32、sework Performance requirements and general design 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 adjustable telescopic aluminium prop compression member consisting of two tubes circular or profiled which are telescopically displaceable with
33、in each other with a length adjustment device with threaded inner tube (see Figure 1) or with a pin inserted into holes in the inner tube and a mean of fine adjustment using a threaded collar (see Figure 2) Note 1 to entry: Such props are normally used as a temporary vertical support in construction
34、 works. 3.2 endplate plate which is fixed at right angles to one end of inner and outer tube Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 16031:2012EN 16031:2012 (E) 7 3
35、.3 collar nut nut internally threaded to provide fine length adjustment to the prop to transfer the force from the inner to the outer tube either to a threaded inner tube or through a pin 3.4 inner tube smaller tube that may be profiled or provided with thread or holes for the coarse adjustment of t
36、he prop 3.5 outer tube larger tube that may be profiled, one end of which could be threaded externally (see Figure 1 and 2) 3.6 length at maximum extension nominal distance measured between the outside faces of the endplates when the prop is in the fully extended position (fully opened) 3.7 length a
37、t minimum extension nominal distance between the outside faces of endplates when the prop is in the fully closed position 3.8 minimum working length nominal distance between the outside faces of the endplates necessary to allow safely the dismounting and removal of prop 3.9 safety devices devices to
38、 prevent unintentional disengagement of the inner and outer tube and/or devices to guarantee the minimum overlapping length 3.10 pin part of the length adjustment device which is inserted through the inner tube holes and is secured to the prop 3.11 working load nominal characteristic strength of the
39、 prop for different classes divided by at least the safety factors given in EN 12812 Note 1 to entry: Safety factors can be greater in national regulations. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted wi
40、thout license from IHS-,-,-BS EN 16031:2012EN 16031:2012 (E) 8 Key1 endplates 2 outer tube 3 inner tube 4 length adjustment device (collar) 5 locking (security) device Figure 1 Example of adjustable telescopic aluminium prop (type 1) Key1 endplate 2 outer tube 3 inner tube 4.1 attached pin 4.2 colla
41、r nut 4.3 handle 5 central hole 6 connection holes 7 pin hole Figure 2 Example of adjustable telescopic aluminium prop (type 2) Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS
42、 EN 16031:2012EN 16031:2012 (E) 9 4 Symbols Symbol Designation Unit Diouter diameter of the inner tube mm mD collar nut major thread diameter mm pD diameter of the pin mm coreb,e eccentricity at the base at which the spring becomes effective mm e(N) limiting eccentricity of the axial forces mm cbspr
43、ing stiffness N mm/rad limitb,e unit eccentricity at the base mm b,0e initial eccentricity at the base mm eteccentricity at the top mm fyyield strength N/mm2actyfactual yield strength N/mm2nomyf nominal yield strength N/mm2f0characteristic value of proof strength at the transitions point between pro
44、p and base plate N/mm2f0,HAZcharacteristic value of proof strength at the transitions point between prop and base plate determined by taking the heat effected zone into account N/mm2l actual extension length of the prop m maxl length of a prop at maximum extension m 0loverlapping length mm plM plast
45、ic moment resistance of the cross section kN m Npl,M reduced plastic moment resistance of the cross section kN m N normal (axial) force kN NR,kcharacteristic compression resistance kN iC,N ideal buckling force kN plN nominal plastic compression resistance of the cross section kN R strength of a prop
46、 kN tb,R bearing resistance of the tube kN pR shear resistance of the pin kN uR failure load of a test kN Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 16031:2012EN 16031
47、:2012 (E) 10 Symbol Designation Unit acty,R actual characteristic strength of the prop class y where y corresponds to classes from A to W kN ky,R nominal characteristic strength of the prop class y where y corresponds to classes from A to W kN ty,R lowest evaluated test result in the global test kN
48、ay,R average value test result in the global test kN kad,R characteristic strength in compression kN V vertical load kN 0angle of inclination between the inner and outer tube rad M partial safety factor for the resistance 1 M1 ,M2 splitted partial safety factors for the material 1 F partial safety factor for the action 1 5 Classification Adjustable telescopic aluminium props shall be classified according to its specified value for nominal characteristic strength Ry,kgiven in Table 1 (load classes) and its maximal
