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The Structural Engineer

All articles published in the December 2012 issue.

Publish Date - 30th November 2012

Author – N/A

Price – £9

The Structural Engineer

Chief Executive Martin Powell reflects on some of the Institution's activities and accomplishments over the last 12 months and looks ahead to the exciting projects and plans in place for 2013 and beyond.

Publish Date - 30th November 2012

Author – M. Powell

Price – Free

The Structural Engineer

John Nolan reviews the Institution’s achievements and challenges within the context of his Presidential theme.

Publish Date - 30th November 2012

Author – J. Nolan

Price – Free

The Structural Engineer

We read about (and maybe unfortunately witness) people being hurt or killed; these events have an immediate effect on a company or project. Accidents may be recorded and analysed, often within a short time of their occurrence. It is no surprise therefore that traditionally, the industry has seen the improvement of accident statistics as representing a true measure of improvement in health and safety performance.

Publish Date - 30th November 2012

Author – The Institution of Structural Engineers Health and Safety Panel

Price – £9

The Structural Engineer

Three reoccurring themes (communication issues, quality assurance and lack of appreciation for the importance of stability) continue to emerge from reports to CROSS detailing incidents on site. Alastair Soane provides examples.

Publish Date - 30th November 2012

Author – A. Soane

Price – £9

The Structural Engineer

Whilst, for most projects, contractors and temporary works designers are the lead players, permanent works designers will always play at least two important roles: a technical one (the design of the permanent works determines what temporary works are needed and what the primary loads will be) and a managerial one (ensuring that appropriate contractual provision and arrangements are in place). John Carpenter outlines the important (and often unsung) role that temporary works play in a construction project.

Publish Date - 30th November 2012

Author – J. Carpenter

Price – £9

The Structural Engineer

Sean Brady stresses the importance of managing 'human factors' to reduce human error within bridge projects, citing international examples from which lessons can be learned.

Publish Date - 30th November 2012

Author – Sean Brady

Price – £9

The Structural Engineer

The importance of accurate information and interpretation of soil conditions on a site cannot be understated. The chosen form of any sub-structure is entirely dependent upon what the site investigations have revealed. It is typically up to the structural engineer, with the aid of geotechnical engineers and specialists, to determine the extent of this investigation and interpret its results. This Technical Guidance Note explains the various methods of site investigation and can be considered a partner to the previously published note on 'soil bearing capacity'.

Publish Date - 30th November 2012

Author – The Institution of Structural Engineers

Price – £9

The Structural Engineer

The twisting of elements within structures due to eccentric loading is something that is best avoided as far as is possible. Such actions develop torsion forces in elements against which they were not designed to withstand. This Technical Guidance Note concerns this buildability and detailing issue that structural engineers must become familiar with in order to avoid otherwise unforeseen problems that can lead to significant remedial works on site and in some cases failures.

Publish Date - 30th November 2012

Author – The Institution of Structural Engineers

Price – £9

The Structural Engineer

There is potential to reduce both operational and embodied greenhouse gas emission from buildings. To date the focus has been on reducing the operational element, although given the urgency of carbon reductions, it may be more beneficial to consider upfront embodied carbon reductions. This paper describes a case study on the whole life carbon cycle of a warehouse building in Swindon, UK. It examines the relationship between embodied carbon (Ec) and operational carbon (Oc), the proportions of Ec from the structural and non-structural elements, carbon benchmarking of the structure, the value of ‘cradle to site’ or ‘cradle to grave’ assessments and the significance of the timing of emissions during the life of the building. The case study indicates that Ec was dominant for the building and that the structure was responsible for more than half of the Ec. Weighting of future emissions appears to be an important factor to consider. The PAS 2050 reduction factors had only a modest effect but weighting to allow for future decarbonisation of the national grid energy supply had a large effect. This suggests that future operational carbon emissions are being overestimated compared to embodied.

Publish Date - 30th November 2012

Author – H. J. Darby (Peter Brett Associates LLP and University of Reading), F. Kelly (Peter Brett Associates LLP), A. A. Elmualim BSc (ICIOB University of Reading)

Price – £9

The Structural Engineer

Exposure trials on timber cladding are valuable sources of information for façade designers. Key material, fire, and structural issues affecting timber cladding design are assessed and robust construction details derived alongside a framework for the emerging sub-discipline of timber façade engineering. The timber used was UK grown Sitka spruce (Picea sitchensis). The work was undertaken because timber is an increasingly common cladding material in the UK, being used on low-rise residential buildings and for medium-rise and non-domestic buildings. The associated risks have, therefore, increased but this is not reflected in published guidance. Around 40 construction details were produced and a selection are shown in this paper. They integrate, for the first time, all of the performance requirements applicable to low- and medium-rise timber façades in the UK. The work’s key benefit is that the guidance arising from this study rationalises and improves façade design.

Publish Date - 30th November 2012

Author – I. P. Davies (Edinburgh Napier University), C. A. Fairfield (Edinburgh Napier University), A. Stupart (Edinburgh Napier University), J. Wood (Edinburgh Napier University)

Price – £9

The Structural Engineer

Jon Morris advocates seeing beyond initial embodied CO2 figures and to think in terms of whole-life carbon content when considering the sustainability of a project.

Publish Date - 30th November 2012

Author – J. Morris

Price – £9

The Structural Engineer

Topics of importance openly discussed...

Publish Date - 30th November 2012

Author – Various

Price – £9