1、BRITISH STANDARDBS EN 14982:2006Plastics piping and ducting systems Thermoplastics shafts or risers for inspection chambers and manholes Determination of ring stiffnessICS 93.030g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g5
2、4g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58+A1:2010National forewordThis British Standard is the UK implementation of EN 14982:2006+A1:2010. It supersedes BS EN 14982:2006 which is withdrawn. This test method is anticipated to replace Appendix F of BS 7158 at its n
3、ext revision.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“.The UK participation in its preparation was entru
4、sted by Technical Committee PRI/88, Plastics piping for non-pressure applications, to Subcommittee PRI/88/1, Ancillary components for plastic piping systems.A list of organizations represented on PRI/88/1 can be obtained on request to its secretary.This publication does not purport to include all th
5、e necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 14982:2006+A1:2010This British Standard waspublished under the authorityof the Standards Policy andStrategy Committeeon 30 No
6、vember 2006 BSI 2010Amendments/corrigenda issued since publicationDate Comments 31 October 2010 Implementation of CEN amendment A1:2010ISBN 978 0 580 70551 9EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14982:2006+A1 September 2010 ICS 93.030 Supersedes EN 14982:2006English Version Plastics p
7、iping and ducting systems - Thermoplastics shafts or risers for inspection chambers and manholes - Determination of ring stiffness Systmes de canalisations et de gaines en plastique - Elments de rehausse en matire thermoplastique pour chambres dinspection ou regards - Dtermination de la rigidit annu
8、laire Kunststoff-Rohrleitungssysteme und Schutzrohrsysteme - Schachtringe und Steigrohre fr Kontroll- und Einsteigschchte aus thermoplastischen Kunststoffen - Bestimmung der Ringsteifigkeit This European Standard was approved by CEN on 28 August 2006 and includes Amendment 1 approved by CEN on 2 Aug
9、ust 2010. 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 without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obt
10、ained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Manag
11、ement Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherl
12、ands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in
13、 any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14982:2006+A1:2010: EEN 14982:2006+A1:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions 44 Principle 55 Apparatus 66 Test pieces 87 Procedure 98 Calculation 109 Test report 1
14、1Bibliography 12BS EN 14982:2006+A1:2010EN 14982:2006+A1:2010 (E) 3 Foreword This document (EN 14982:2006+A1:2010) has been prepared by Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems”, the secretariat of which is held by NEN. This European Standard shall be given the sta
15、tus of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2011, and conflicting national standards shall be withdrawn at the latest by March 2011. Attention is drawn to the possibility that some of the elements of this document may be the subjec
16、t of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1, approved by CEN on 2010-08-02. This document supersedes EN 14982:2006. The start and finish of text introduced or altered by amendment is indicated
17、in the text by tags ! “. According to the CEN/CENELEC Internal 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,
18、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 14982:2006+A1:2010EN 14982:2006+A1:2010 (E) 4 1 Scope This European Standard specifies a test method for as
19、sessing the initial (short-term) tangential ring stiffness of riser shafts for thermoplastics inspection chambers or manholes. NOTE This is intended as a test of the structural integrity of riser shafts supporting product standards !EN 13598-21“ and prEN 152292. 2 Normative references The following
20、referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. !EN ISO 9969, Thermoplastics pipes Determination of ring stiffn
21、ess (ISO 9969:2007)“ ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 inspection chamber drainage and sewerage fitting used for the c
22、onnection of drainage or sewerage installations and/or for changing the direction of drainage/sewerage runs. An inspection chamber terminates at ground level, permitting the introduction of cleaning, inspection and test equipment and the removal of debris but it does not provide access for personnel
23、. The riser shaft connected to these fittings has a minimum outside diameter of 200 mm and a maximum inside diameter of less than 800 mm 3.2 manhole drainage and sewerage fitting used for the connection of drainage or sewerage installations and/or for changing the direction of drainage/sewerage runs
24、. A manhole terminates at ground level, permitting the introduction of cleaning, inspection and test equipment and the removal of debris and also providing access for personnel. The minimum inside diameter of a manhole riser shaft is 800 mm 3.3 structured-wall ancillary fitting fitting with an optim
25、ized structural design with regard to material usage, but which still achieves the relevant performance requirements. These fittings could be circular or rectangular in design 3.4 regular cross section shaft riser shaft either fabricated from plain pipe or from structured wall pipe or fittings with
26、a regular symmetrical design on their external surface. These products could be manufactured by extrusion, injection moulding, blow moulding or rotational moulding BS EN 14982:2006+A1:2010EN 14982:2006+A1:2010 (E) 5 3.5 irregular cross section shaft riser shaft with an irregular asymmetrical design
27、on its external surface such as those with additional reinforcing rings or structures intended to strengthen the riser in specific areas. These products could be manufactured by extrusion, injection moulding, blow moulding or rotational moulding 4 Principle 4.1 General The ring stiffness of a shaft
28、is determined using the EN ISO 9969 test method when the shaft has a circular and regular cross-section. Where a shaft has a square or rectangular cross-section, or if the shape is irregular, then the EN ISO 9969 test is modified as described in this standard to determine the ring stiffness. See Tab
29、le 1. Table 1 Relevant standards for determination of ring stiffness External shaft design Type of cross-section Relevant standard for determination of ring stiffness Plain surface Regular cross-section and circular EN ISO 9969 Irregular cross-section, circular or square or rectangular EN 14982 Stru
30、ctured wall surface Regular cross-section and circular EN ISO 9969 Irregular cross-section, circular or square or rectangular EN 14982 4.2 Principle for shafts with circular and regular cross-section The ring stiffness is determined by measuring the force and the deflection while deflecting the shaf
31、t at a constant rate. A length of shaft supported horizontally is compressed vertically between two parallel flat plates moved at a constant speed which is dependent upon the diameter of the shaft. A plot of force versus deflection is generated. The ring stiffness is calculated as a function of the
32、force necessary to produce a deflection of 0,03didiametrically across the shaft. 4.3 Principle for shafts with circular and irregular cross-section or, square or rectangular The ring stiffness is determined by measuring the force and deflection whilst deflecting the shaft at a constant rate or const
33、ant load, until sufficient force is applied to obtain a resulting deflection in the range of 2% to 6%. A riser shaft or segment of shaft is placed symmetrically between two rigid parallel plates or beams or alternatively between one rigid beam and a V-shaped support. A compressive force is applied t
34、o the shaft or segment using a bearer shaped to the external surface of the test piece. BS EN 14982:2006+A1:2010EN 14982:2006+A1:2010 (E) 6 The ring stiffness is calculated as a function of the force required to produce the deflection. 5 Apparatus 5.1 Shaft with circular and regular cross-section Th
35、e apparatus shall conform to that described in EN ISO 9969. Figure 1 Shaft with circular and regular cross section 5.2 Shaft with circular and irregular cross-section or, square or rectangular NOTE Examples for representative test pieces are shown in Figures 2 to 3 Figure 2 Shafts with circular and
36、irregular cross section BS EN 14982:2006+A1:2010EN 14982:2006+A1:2010 (E) 7 Figure 3 Square and rectangular shaft 5.2.1 Loading frame, with two rigid parallel plates or beams between which a compressive force can be applied to the test piece so that the force and the resulting deflection of the test
37、 piece in the direction of the force can be measured with an accuracy of 1 %. Where a V-shaped support is used, the included angle shall be 170 or more. For shafts with square or rectangular cross sections the bearers shall have a width W not greater than 25 mm. For circular shafts with irregular cr
38、oss section the maximum width of bearers shall be for: DN/ID 400: 50 mm; 400 1 200: 150 mm. NOTE The above values have been taken from 9.2.1 of EN 476:19973. Where the outside of an irregular shaft has a change in cross-section incorporated within the test piece, the bearers shall be shaped to accom
39、modate this (see Figure 4). Where square or rectangular shafts have a regular rib configuration this shall not be considered not to be a change in cross-section, and the load imposed shall be applied just to the crests of the ribs. The centre of loading shall be so arranged that the vertical deflect
40、ion of the two ends of the test piece differs by not more than 0,5 % of the nominal size of the shaft. Where the surface of the outside of the shaft does not provide a smooth bearing contact, the bearers shall be surfaced with a strip, not less than 3 mm thick, of elastomeric material of (50 5) IRHD
41、 hardness in accordance with ISO 48. The length of each bearer shall be not less than the length of the test piece. BS EN 14982:2006+A1:2010EN 14982:2006+A1:2010 (E) 8 Key 1 load, applied to upper bearer 6 test piece 2 bearer, accommodated to shape of test piece 7 elastomeric material 3 elastomeric
42、strips 8 support 4 reference beam for measuring L length of test piece 5 joint element, assembled, comprising standard M1, M2, M3 measuring points sealing system of the manufacturer W width of bearer Figure 4 Loading arrangement 5.2.2 Measuring devices, capable of determining the length to an accura
43、cy of 0.5mm and the force and deflection along the length of the test piece to an accuracy of 1 % in the direction of the applied force. 6 Test pieces 6.1 Number of test pieces Three test pieces shall be taken, each consisting of a riser or an appropriate length of riser segment incorporating a join
44、t element, if required. 6.2 Age of test pieces Test pieces shall be (21 2) days old and conditioned in air at ambient temperature for at least 24 h prior to testing. BS EN 14982:2006+A1:2010EN 14982:2006+A1:2010 (E) 9 6.3 Specification of test pieces 6.3.1 Shafts with circular and regular cross-sect
45、ion When the shaft has a circular and regular cross-section the test piece shall be in accordance with EN ISO 9969 and have a minimum length of 300 mm. In the case of a one-piece chamber or manhole, the shaft shall be cut off at a minimum of 300 mm from the top of the main channel. It shall be cut s
46、moothly and perpendicular to the main axis. 6.3.2 Shafts with a square or rectangular or irregular cross-section When the chamber or manhole consists of a chamber base and a separate shaft, the whole shaft with an additional joint element shall be used as the test piece. The additional joint element
47、 shall be connected with the shaft by using the standard sealing or welding system of the manufacturer (see Figure 5). In the case of a one-piece chamber or manhole, the test piece shall be cut off at a minimum of 300 mm from the top of the main channel. It shall be cut smoothly and perpendicular to
48、 the main axis of the chamber or manhole. The length of the piece shall be chosen to obtain maximum symmetry but shall not be less than 300 mm and not exceed 1 000 mm. Key 1 joint element 2 joint element connected with the standard sealing system of the manufacturer Figure 5 Shaft with an irregular
49、cross-section connected with a joint element 7 Procedure 7.1 Test temperature The test shall be conducted at a temperature of (23 2) C. 7.2 Shafts with circular and regular cross-section The test shall be carried out in accordance with EN ISO 9969. BS EN 14982:2006+A1:2010EN 14982:2006+A1:2010 (E) 10 7.3 Shafts with a square or rectangular or irregular cross-section 7.3.1 Carry out the following procedure. 7.3.2 Assemble the test piece symmetrically in the test apparatus. The line of loading and
