Steel Building Design Medium rise braced frames This publication supports one of the very common uses of steel in the UK. For new designers, the guide provides an introduction to the major features of multi-storey design. For more experienced designers, the guide illustrates the key changes when designing to the Eurocode, in particular the revised approach to frame stability. A worked example showing the design of the major elements is included. The publication provides: General design guidance and advice on detailed design to the Eurocodes. An overview of the common floor systems used in multi-storey structures, including typical framing layouts, typical member sizes and construction depths. Detailed guidance on the design of bracing systems, with particular attention to allowance for second order effects. Guidance on the application of the robustness rules in Eurocode 1, which are intended to ensure adequate tying resistance and the avoidance of disproportionate collapse.