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The Structural Engineer

Structural engineers have always been fascinated with building the biggest and best of structures. The efects of scaling-up the size of structures is explored, with particular reference to failure by fracture and fatigue. It is concluded that size does matter for structural engineers. Professor F.M. Burdekin

The Structural Engineer

In March 1994, Lord Woolf was appointed to review the rules and procedures of the Civil Courts in England and Wales with the overall aim of reducing the cost, complexity and timescales of litigation, thereby improving access to justice. John Bishop

The Structural Engineer

St James’s Park, Newcastle United’s new stadium is rising even higher above the city centre buildings than the existing structure which it is enlarging. Expanding on the same site has been costly, at £43 million, and controversial. Kathy Stansfield

The Structural Engineer

‘Stressed skin ’design has generally been applied primarily to roofs or walls with a single skin of sheeting directly fixed to the purlins, side-rails or beams by, for example, self-drilling, self-tapping screws or fired pins. However, many modern roof systems involve two metal skins with insulation positioned between them, and this affects their in-plane resistance. This paper reviews the potential for the stressed skin design of these modern roofs on the basis of eight full-scale diaphragm tests of diflerent, but ‘generic’, roof systems. The tests showed that built-up roofs comprising a liner tray, Z spacers, and roof sheeting , performed well and that significant ‘composite’ action between the roof sheeting and the liner tray took place. The performance of all liner trays could be enhanced significantly if their local shear buckling resistance is improved, leading to enhanced potential for use in ‘stressed skin’ design. Professor J.M. Davies and R.M. Lawson

The Structural Engineer

Cowboy builders: who controls their work? Stan Lawrence (by now well known to readers) writes: NCE (2 September) highlights the scenario of the consequence of the recent Ashford collapse, where four site workmen were killed when a three-storey office block collapsed because of substandard construction a decade or more ago.