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The Structural Engineer, Volume 75, Issue 3, 1997
This paper discusses the philosophy of the conservation of the built environment as seen by English Heritage and other conservation bodies. It examines the role of the structural engineer in building conservation and considers whether the education of engineers allocates sufficient time to the study of existing structures. I.J. Hume
Recently, the Construction Research & Innovation Strategy Panel (CRISP) combined with Construction Foresight to urge further research into the workings of the Private Finance Initiative. Its report, on the theme of risk and reward, said the most urgent requirement for construction was to help the top 500 constructors to scale the PFI learning curve. John D. Allen asked four consultants with close experience of PFI negotiations for their views on this idea.
This note provides guidance on the design of braced steel frames for buildings, utilising the significant moment resistance of unstiffened connections such as those shown in Fig 1. They do not provide full continuity but both BS 5950 and Eurocode 32 permit a ‘semi-continuous’ approach to design. These connections require only moderate fabrication effort and hence are relatively cheap. Semi-continuous framing is therefore becoming recognised as providing a more cost-effective approach than either simple or fully-continuous design. So far though, its application has been hindered by uncertainty over the extent of the benefits, by the failure of design Codes to provide methods to predict connection properties, and by lack of guidance on how to approach design of the frame as a whole. Guidance can now be provided on each of these aspects. Professor D. Anderson and A.F. Hughes