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ABSTRACT
Since the withdrawal of all conflicting National Structural codes in 2010, a lot of engineers especially in this country have not been able to successfully transition to the adoption of the Structural Eurocodes. One reason for this could be the unawareness of the benefits of using these codes. In this dissertation, a comparative study of the withdrawn steel design code by BSI, BS 5950 and the latest steel design code by CEN, EN 1993, was carried out. An industrial warehouse was considered for analysis and design. Only the column and beam of the warehouse was designed. The frame of the structure was first analysed and designed manually using the above codes, and then modelled on a structural design software, STAAD.Pro CONNECT Edition. The software was used to also analyse and design the structure. With this, the design results obtained were compared. It was found that BS 5950 demanded for a slightly higher steel section compared to EN 1993. From the manual design, BS 5950 provided UC356x368x153 S265 to be used for the columns and UB838x292x176 S265 to be used for the beams, while EN 1993 opted for UC356x368x129 S275 to be used for the columns and UB762x267x147 S275 to be used for the beams. The software output that UC356x406x551 S275 be used for the columns and UB914x419x388 S275 for the beams while designing to BS 5950, and UC356x406x393 S275 be used for the columns and UB914x419x388 S275 for the beams while designing to EN 1993. It was concluded that BS 5950 proved to be less economical due to the higher steel section provided, thereby making EN 1993 the better choice in the design of steel structures. Some areas for further research as itemised in the last chapter of this project work included using both codes to design a high rise building and considering wind, and also designing steel connections using both codes, thereby further verifying which code is more economical and preferable to use.
