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All articles published in the March 2012 issue.
(NB Technical Guidance Notes Level 1, No. 5 and Level 1, No. 6 contained within this issue were updated in October 2016. For the updated articles, see the individual article entries for this issue.)
Publish Date - 1 March 2012
Ed Clark (Director, Arup) puts forward his interpretation of ‘structural excellence’ in an article based on his Milne Medal lecture.
This article draws attention to such topical events as the publication of the Lofstedt report, the Health and Safety Executive's interpretation of "appropriate action" and firms prosectuted over the mis-handling of asbestos.
With great knowledge comes great responsibility
Roger Faires of the Institution’s Young Members Panel and a Young Member of SCOSS, highlights the value that SCOSS and CROSS have in passing on knowledge to more junior structural engineers.
John Carpenter, Technical Secretary to the Temporary Works Forum (TWf) outlines the technical issues surrounding temporary works and the introduction of “Temporary Works Co-ordinators”.
This Technical Guidance Note concerns the derivation of snow load onto structures. It is based on Eurocode 1: Actions on Structures Part 1-3; General Actions – Snow Loads. With this Eurocode being focused on an action that is sensitive to environmental effects, the UK annex to it plays a significant role, as it makes reference to projected snow falls that are unique to the British Isles. There are a large number of variations and conditions the designer must be aware of when determining snow loads onto structures. As such, the reader is referred to the code text more frequently than in other Technical Guidance Notes.
(This article was updated in October 2016 to reflect errata issued since its original publication.)
This Technical Guidance Note concerns the concept of notional loading, which the Eurocodes classifies as Equivalent Horizontal Forces. These are loads that exist due to inaccuracies and imperfections introduced into the structure during its construction. The following text explains how notional lateral loads are incorporated into the design process.
A transition piece is used on monopile wind turbine foundations for transmitting the large moment from the wind on the tower. A grouted connection is generally adopted to connect the transition piece to the pile that is driven into the seabed. The grout connection has been successfully used in the offshore oil and gas industry on drilling and production platform jackets for the last 40 years. However the major difference for a wind turbine structure is that while the grout connection in jackets is mainly intended for large axial forces, the wind turbine grout connection is predominantly subjected to bending. The ability of the grout connection to transfer large moment is not fully understood due to lack of experiments and size effects. The theory that has been used for designing the grout is reviewed thoroughly here in order to understand the limitations.
Simon Pole provides a personal view of the current Party Wall issues surrounding retrofit basements, and offers some suggestions for how both the Institution and industry might respond to the challenges.
Topics of importance openly discussed...
One of the Institution's oldest Regional Groups has its sights fixed firmly on the future...