Steel Buildings in Europe

Part 10: Model Construction Specification 10 - 44 Proposed Clauses Commentary 6.4 Geometrical tolerances 6.4.1 For essential tolerances, the tabulated values in Annex D.1 of EN 1090-2 shall apply. If the steelwork is not within tolerance, it shall be reported to the designer of the permanent works and shall be adjusted, if necessary, to maintain the structural adequacy in accordance with the design rules. Manufacturing tolerances are described in § 11.2.2 of EN 1090-2; Erection tolerances are described in § 11.2.3 of EN 1090-2; 6.4.2 For functional tolerances (in terms of accepted geometrical deviations), either the tabulated values in § 11.3.2 and Annex D.2 of EN 1090-2 shall apply, or , the alternative criteria defined in § 11.3.3 of EN 1090-2 shall apply. 7. CONSTITUENT STEEL PRODUCTS 7.1 Identification, inspection documents and traceability 7.1.1 Properties for (...) shall comply with the requirements given in (...). § 5.1 of EN 1090-2 Insert details for any constituent product not covered by the European Standards listed in Table 2 of EN 1090-2. 7.1.2 The inspection documents (according to EN 10204) shall be as listed in Table 1 of EN 1090-2. § 5.2 of EN 1090-2. (Optional clause) 7.1.3 For Execution Classes EXC3 and EXC4, constituent products shall be traceable at all stages from receipt to hand over after incorporation in the works. § 5.2 of EN 1090-2. 7.1.4 For Execution Classes EXC2, EXC3 and EXC4, if different grades and/or qualities of constituent products are in circulation together, each item shall be designated with a mark that identifies its grade. § 5.2 of EN 1090-2. Methods of marking should be in accordance with that for components given in § 6.2 of EN 1090-2. If marking is required, unmarked constituent products should be treated as non conforming product. 7.2 Structural steel products 7.2.1 The grade and quality of structural steel shall be as specified on the drawings. 7.2.2 For structural steel plates, thickness tolerances class A, in accordance with EN 10029, shall be used. § 5.3.2 of EN 1090-2. Class A is usually sufficient, even where EXC4 is specified, but if class C is required by the technical authority or for other reasons, that class should be specified instead.