All articles published in the September 2014 issue.
Publish Date – 28 August 2014
This year's winners of the Institution's Award Scheme for Excellence in Structural Engineering Education, Tianjian Ji and Adrian Bell of The University of Manchester, describe some of the resources developed over a 14-year period, that are enhancing student engagement in (and teacher delivery of) structural concepts.
A collaboration between architects (de Rijke Marsh Morgan), structural engineers (Arup) and the American Hardwood Export Council resulted in an 'endlessly reconfigurable' cross-laminated timber sculpture that was first showcased at last year's London Design Festival and has since been displayed in several European cities.
The majority of projects involve digging holes in the ground for basements, foundations or trenches. Obvious hazards are those of side collapse or water inundation – with potentially lethal consequences to people working at depth.
Director of Structural-Safety, Alastair Soane, summarises the latest CROSS Newsletter; alerting readers to examples of failure (or near-miss) including a steelwork truss imported in Australia having to be rebuilt, following the identification of several defects and a lack of compliance with welding specifications.
This article focuses on light steel framing, which is becoming increasingly popular in a wide range of applications; used not only as secondary steelwork, but also as primary load-bearing elements.
The various high performance concretes that might be used for concrete bridges, to make them either quicker and easier to build, or more economic are discussed. The advantages of high strength, lightweight, fibre reinforced and self-compacting concretes are described, together with the use of new materials that can replace steel for both reinforcement and prestressing.
Authors from Heriot-Watt and The University of Stuttgart use a large amount of test data to evaluate EC2 rules for the design of tension lapped joints - and suggest that a degree of revision may be necessary, as the rules don't appear to offer the margins of safety expected.
John Carpenter suggests that in the UK, the HSE and professional institutions could do
more to help expedite the release of post-incident information — enabling engineers to
learn from past mistakes for the benefit of the public.
Alasdair Beal imparts some extra information relating to the paper by Kollár, Csuka and Ther, published in the July 2014 issue of The Structural Engineer.
Letters this month include discussion on: Designing columns for fire resistance; the pioneer of portal frames; Raising the CM exam pass mark and SER Ltd.