Steel Buildings in Europe

Part 10: Model Construction Specification 10 - 43 Proposed Clauses Commentary 5.6.2 The guidance given in section 3 of EN 1993-1-10 shall be used for the selection of materials for through- thickness properties. 5.7 Crane supporting structures 5.7.1 Where crane rails are assumed to contribute to the strength or stiffness of a runway beam, the properties of the combined cross-section shall be determined as follows: (Specify the appropriate allowances for wear to be made) . § 4(3) of EN 1993-6 5.7.2 Where actions from soil subsidence or seismic actions are expected, tolerances for vertical and horizontal imposed deformations shall be taken as follows: (Specify the appropriate allowances) . § 4(4) of EN 1993-6 These allowances should be agreed with the crane supplier, and included in the inspection and maintenance plans. 5.7.3 The limits for deformations and displacements shall be taken as follows: (specify the specific limits together with the serviceability load combinations under which they apply). § 7.3(1) of EN 1993-6 6. EXECUTION SPECIFICATION 6.1 General 6.1.1 The requirements for the execution of structural steelwork for the project are given in the following documents: (Insert list) Insert a list of the relevant drawings and other documents, including reference to EN 1090-2. 6.2 Execution Class 6.2.1 For building structures, EXC2 shall generally apply, except where specified otherwise on the drawings. The use of EXC2 as the default class will provide adequate reliability for most elements of ordinary buildings. For some structures, a greater scope of inspection and testing and/or higher quality level acceptance criteria may be required, either generally or for particular details. Particular details where this is required, such as where special inspection and testing is required, should be indicated on the drawings. Table A.3 of EN 1090-2 gives a list of requirements related to execution classes; Annex B of EN 1090-2 gives guidance for the choice of execution classes; The choice of execution classes is related to production categories and service categories, with links to consequence classes as defined in Annex B of EN 1990. 6.3 Preparation grades 6.3.1 The preparation grade of all surfaces to which paints and related products are to be applied shall be ... Otherwise, The expected life of the corrosion protection shall be ... years or corrosivity category shall be ... Preparation grades (P1 to P3 according to ISO 8501-3) are related to the expected life of the corrosion protection and corrosivity category as defined in § 10 of EN 1090-2.