ČSN EN 1993-1-14

(1) This document gives requirements for the use of numerical methods in the design of steel structures, more specifically for the ultimate limit state (including fatigue) and serviceability limit state verifications. It also gives requirements for the application of advanced finite element (FE) and similar modelling techniques. (2) This document covers general methodologies such as the finite element method (FEM), finite strip method (FSM) or generalized beam theory (GBT) for modelling, analysis and design of steel structures made of the following members and joint configurations: a) hot-rolled profiles, b) cold-formed members and sheeting, c) welded plated profiles, d) stainless steel profiles, e) plate assemblies, f) shell structures, g) welded and bolted joints. In addition to the general design rules, specific additional rules can also be found in the relevant parts of EN 1993. (3) This document contains harmonized design rules in terms of the application of the numerical modelling methods, development of the numerical models, application of analysis types, result evaluation methods, and determination of the resistance of steel structures for different limit states. (4) This document provides rules for numerical modelling and design of steel structures using all steel grades from S235 up to and including S700, unless otherwise stated in individual clauses. Assumptions: (1) This document gives rules intended for engineers who are experienced in the use of FE. (2) It is recognized that structural analysis, based upon the laws of physics, has been successfully researched, developed, historically or currently used for the design and verification of elements or whole structural frames. This remains appropriate for many structural solutions. However, as an alternative, the methods described in this document can be also applied for design. (3) Unless specifically stated, EN 1990, EN 1991 (all parts) and the other relevant parts of EN 1993-1 apply. (4) The design methods given in this document are applicable if - the execution quality is as specified in EN 1090-2 and/or EN 1090-4, and - the construction materials and products used are as specified in the relevant parts of EN 1993, or in the relevant material and product specifications.