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使用欧洲规范EC3，并结合NCCI可以解决大多数钢结构设计问题，如想进一步了解可以看英国钢结构协会的出版物。如仍然存在疑难问题也可咨询本人。
Eurocode Non-Contradictory Complementary Information
| NCCI | Non-Contradictory Complementary Information |
| SN001a-EN-EU | Critical axial load for torsional and flexural torsional |
| SN002a-EN-EU | Determination of non-dimensional slenderness of I and H sections |
| SN003a-EN-EU | Elastic critical moment for lateral torsional buckling |
| SN004a-EN-EU | Calculation of alpha-cr |
| SN005a-EN-EU | Determination of moments on columns in simple construction |
| SN006a-EN-EU | Elastic critical moment of cantilevers |
| SN007a-EN-EU | Torsion |
| SN008a-EN-EU | Buckling lengths of columns – rigorous approach |
| SN009a-EN-EU | Effective lengths and destabilizing load parameters for beams and cantilevers – common cases |
| SN010a-EN-EU | Initial Design of non-Composite Beams |
| SN012a-EN-EU | Sizing guidance – non-composite columns (H sections) |
| SN013a-EN-EU | Initial sizing of simple end plate connections |
| SN014a-EN-EU | Shear resistance of a simple end plate connection |
| SN015a-EN-EU | Tying resistance of a simple end plate connection |
| SN016a-EN-EU | Initial sizing of fin plate connections |
| SN017a-EN-EU | Shear resistance of a fin plate connection |
| SN018a-EN-EU | Tying resistance of a fin plate connection |
| SN019a-EN-EU | Design rules for web openings in beams |
| SN020a-EN-EU | Simple Construction – concept and typical frame |
| SN021a-EN-EU | Design of simple column bases with shear nibs |
| SN022a-EN-EU | Initial Design of Composite Beams |
| SN023a-EN-EU | Design model for non-bearing column splices |
| SN024a-EN-EU | Initial sizing of non-bearing column splices |
| SN025a-EN-EU | Column splices not requiring full continuity of stiffeness |
| SN026a-EN-EU | Bearing column splices |
| SN027a-EN-EU | Design of roof trusses |
| SN028a-EN-EU | Initial sizing of vertical bracing for a multi-storey building for design as a braced, non-sway frame |
| SN029a-EN-EU | Modelling of portal frames – elastic analysis |
| SN030a-EN-EU | Mono-symmetrical uniform members under bending and axial compression |
| SN031a-EN-EU | Effective lengths of columns and truss elements in truss portal frame construction |
| SN032a-EN-EU | General method for out-of-plane buckling in portal frames |
| SN033a-EN-EU | Simple methods for second order effects in portal frames |
| SN034a-EN-EU | Vertical and horizontal deflection limits for multi-storey buildings |
| SN035a-EN-EU | Practical deflection limits for single storey buildings |
| SN036a-EN-EU | Vibrations |
| SN037a-EN-EU | Design model for simple column bases- axially loaded I section columns |
| SN038a-EN-EU | Design of a notched section at the end of a beam |
| SN039a-EN-EU | Practical analytical models for portal frames (plastic analysis) |
| SN040a-EN-EU | Design model for welded joints in trusses using structural hollow sections |
| SN041a-EN-EU | Design of portal frame eaves connections |
| SN042a-EN-EU | Design of portal frame apex connections |
| SN043a-EN-EU | Design of fixed column base joints |
| SN044a-EN-EU | Design models for splices in structural hollow |
| SN045a-EN-EU | Column base stiffness for global analysis |
| SN046a-EN-EU | Design of out of plane and transverse restraint systems for portal frames |
| SN047a-EN-EU | Simplified approaches to the selection of equivalent horizontal forces for the global analysis of braced and unbraced frames |
| SN048b-EN-GB | Verification of columns in simple construction – a simplified interaction criterion |