1、CEN EN*L003Li 73 m 3LiOY587 0052730 77T m EUROPEAN STANDARD EN 10034 NORME EUROPENNE EUROPISCHE NORM September 1993 UDC 669.14.018.29-423.1 : 621.753.1 Descriptors: Iron and steel products, I beams, structurai steels, dimensional tolerances, form tolerances English version Structural steel I and H s
2、ections - Tolerances on shape and dimensions Poutrelles I et H en acier de construction - Merances de formes et de dimensions I- und H-Profile aus Baustahl - GrenZabmaBe und Formtoleranzen This European Standard was approved by CEN on 1993-08-30. CEN members are bound to comply with the CENKENELEC I
3、nternal 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 obtained on application to the Central Secretariat or to any CEN me
4、mber. 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 Central Secretariat has the same status as the official versions. CEN membe
5、rs are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europische
6、s Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1993 Copyright reserved to CEN members Ref. No. EN 10034 : 1993 E CEN ENx10034 93 3404589 00527LL bob Page 2 EN 10034 : 1993 Foreword This European Standard has been prepared by ECISS/TCl 1 Sections: lblerances and Dimen
7、sions; the Secretariat of which is held by BSI. The discussions within ECISSITC1 1 were based on Euronorm 34-62 Broadmnged beams with parallel sides. Rolling tolemnces and Euronorm 44-63 Hot rolled IPE joists. Rolling tolerances This European Standard shall be given the status of a national standard
8、, either by publication of an identical text or by endorsement, at least by March 1994, and conflicting national standards shall be withdrawn at the latest by March 1994. According to the CENKENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria,
9、 Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Fore word 1 Scope 2 Normative references 3 Definitions 4 Rolling tolerances for structural 5 lblerance on mass 6 Tolerance
10、on length Ibles 1 Dimensional tolerances for structural steel I and H sections 2 Tolerances on out-of-square and web off-centre of structural steel I and H sections structural steel I and H sections steel I and H sections 3 Tolerances on straightness of Annex A (informative) Straightness measurement
11、 3 3 3 3 3 3 4 5 6 6 CEN EN*L0034 93 9 3404589 0052732 542 9 Page 3 EN 10034 : 1993 1 Scope This European Standard specifies tolerances on shape dimensions and mass of structural steel I and H sections. These requirements do not apply to I and H sections rolled from stainless steel. These requiremen
12、ts do not apply to taper flange sections. NOTE. Until a European Standard for dimensions of I and H beams is published Euronorm 19 and Euronorm 53 or corresponding national standards may be used. 2 Normative references This European Standard incorporates by dated or undated reference, provisions fro
13、m other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendme
14、nt or revision. For undated references the latest edition of the publication referred to applies. EN 10079 Definition of steel products Euronorm 19 : 1957 IPE beams, parallelflanged beams Euronorm 53 : 1962 Wideflange beam with parallel flanges 3 Definitions For the purpose of this European Standard
15、, the definitions in EN 10079 apply. 4 Rolling tolerances for structural steel I and H sections 4.1 Section height (h) The deviation from nominal on section height measured at the centre line of web thickness shall be within the tolerance given in table 1. 4.2 Flange width (b) The deviation from nom
16、inal on flange width shall be within the tolerance given in table 1. 4.3 Web thickness (s) The deviation from nominal on web thickness measured at the mid-point of dimension h shall be within the tolerance given in table 1. 4.4 Flange thickness (t) The deviation from nominal on flange thickness meas
17、ured at the quarter flange width point shall be within the tolerance given in table 1. 4.5 Out-of-squareness (k + k) The out-of-squareness of the section shall not exceed the maximum given in table 2. 4.6 Web off-centre (e) The mid-thickness of the web shall not deviate from the mid-width position o
18、n the flange by more than the distance (e) given in table 2. 4.7 Straightness (qxx or qyy) The straightness shall comply with the requirements given in table 3. 5 Tolerance on mass The deviation from the nominal mass of a batch or a piece shall not exceed f 4.0 %. The mass deviation is the differenc
19、e between the actual mass of the batch or piece and the calculated mass. The calculated mass shall be determined using a density of 7,85 kg/dm3. 6 Tolerance on length The sections shall be cut to ordered lengths to tolerances of: a) f 50 mm; or b) + 100 mm where minimum lengths are requested. L repr
20、esents the longest useable length of the section assuming that the ends of the section have ben cut square (see figure i). CEN EN+30034 93 3404589 0052333 489 Page 4 EN 10034 : 1993 lhble 1. Dimensional tolerances for structural steel I and H sections kction height h ieight im h I 18 80 70C toleranc
21、e mm +3,0 -2,0 + 4,0 -2,0 + 5,0 - 3,o + 5,0 - 5,0 - h 1 X- Y - I +* Flange width b * is measured at 94 (see clause 4.4.) width tolerance mm b I 110 +4,0 - l,o 110 b I 210 +4,0 -2,0 +4,0 -4,O 210 325 +6,o -5,O Web thickness s thickness mm se7 7SS 110 tolerance mm 1,5 2%ofb (max 6,5 mm) b Web off-cent
22、re e where e = _ bl - b2 2 tolerance fiange width b mm Where t 325 Where t 1 40 110 325 295 3,5 5-0 5,o 8,O Page 6 EN 10034 : 1993 able 3. Tolerances on straightness of structural steel I and H sections -_ _- Section height h I mm Tolerance on straightness qmr and qn, on length L % 80 e h 360 0,l L
23、1 L max. Figure 1. Measurement of length L on I and H steel sections Annex A (informative) Straightness measurement Straightness measurement requires a reference straight edge from which deviations in section straightness are measured. A taut string line is an acceptable straight edge provided that
24、deviations in the horizontal plan only are measured. Measurement is carried out as follows: for qxx: The beam is laid in the H position on a flat surface and the string is taken along the outside of the centre of the flange width between the two ends of the unconstrained section. for qyy: The beam is laid in the I position on a flat surface and the string is taken along the flange tip between the two ends of the unconstrained section.
