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The Structural Engineer

All articles published in the June 2014 issue.

(NB Technical Guidance Note Level 2, No. 12 contained within this issue was updated in October 2016. For the updated article, see the individual article entry for this issue.)

Publish Date - 29th May 2014

Author – Various

Price – £25

The Structural Engineer

Winner of the Kenneth Severn Award 2014, Natasha Scott cites Visiting Professor schemes, apprenticeships and compulsory industrial experience for students, as some of the ways in which these two branches of the profession could work more closely.

Publish Date - 29th May 2014

Author – N. Scott (BWB Consulting)

Price – £9

The Structural Engineer

Authors from Arup report on a redevelopment project that balances sensitive restoration and adaption of a historic building, with the design and construction of a sculptural form fabric roof.

Publish Date - 29th May 2014

Author – M. Turpin, C. Neighbour and R. Baldock (Arup UK)

Price – £9

The Structural Engineer

This short article provides an overview of the formal, recorded process used to control work which is identified as potentially hazardous.

Publish Date - 29th May 2014

Author – The Institution of Structural Engineers' Health and Safety Panel

Price – £9

The Structural Engineer

Browne Jacobson’s James Arrowsmith provides some guidance for those looking to recover losses incurred during the course of their work.

Publish Date - 29th May 2014

Author – Browne Jacobson LLP

Price – £9

The Structural Engineer

Portal frames are a simple and very common type of framed (or skeleton) structure. Steel portal frames, in particular, are a cost-effective structural system to support building envelopes (such as warehouses and shopping complexes) requiring large column-free spaces. In general, the loads and consequent deformations for these frames are in the plane of the structure, and hence these are a 2D (or plane) frame structure. Due to the practical requirement of having a clear space between the supports of a portal frame, providing in-plane bracing is generally not feasible. Consequently, these frames undergo larger deflections and are prone to sway laterally, even under the vertical loads. The concept of sway frames is addressed in more detail in Technical Guidance Note No. 10 (Level 1) Principles of lateral stability. Thus, in spite of the inherent simplicity of portal frames, many aspects of their analysis, design and detailing require careful consideration.

Portal frames can be made from concrete, timber and even glass but the vast majority, in the UK certainly, are constructed from steel. This Technical Guidance Note gives an introduction to steel portal frames and their preliminary analysis. Steel portal frames usually have pinned bases and moment connections at the column/rafter interface and mid-span apex splice in the rafter. Although there are other forms of portal frame (described in Elastic Design of Single- Span Steel Portal Frame Buildings to Eurocode 3), for the sake of brevity and clarity this note will be dedicated to this particular form.

(This article was updated in October 2016 to reflect errata issued since its original publication.)

Publish Date - 29th May 2014

Author – The Institution of Structural Engineers

Price – £9

The Structural Engineer

The first in a ‘steel construction’ sub-series, this article discusses the often competing demands on the structural designer to balance frame cost against architectural demands and the cost of other building components, such as curtain walling.

Publish Date - 29th May 2014

Author – Steel Construction Institute (SCI)

Price – £9

The Structural Engineer

In situ options tend to be used on projects where the speed of construction is not critical, or where the lower costs of the in situ works justify a slightly longer programme.

Publish Date - 29th May 2014

Author – Concrete Bridge Development Group (CBDG)

Price – £9

The Structural Engineer

Fibre reinforced polymers (FRPs) are increasingly used to retrofit concrete structures due to their many desirable properties. Researchers from the University of Exeter report on a series of experiments that apply nonlinear elastic wave spectroscopy to concrete beams strengthened with externally bonded FRP, in order to detect the onset of failure.

Publish Date - 29th May 2014

Author – P. Kripakaran (University of Exeter) and P. Armitage (Theta Technologies Ltd)

Price – £9

The Structural Engineer

Roma Agrawal is using her rarity as a young, female engineer to front campaigns on television, in the papers and on billboards that raise the profile of an engineering career. More professionals should do the same, she tells Jackie Whitelaw.

Publish Date - 29th May 2014

Author – J. Whitelaw

Price – Free

The Structural Engineer

Letters this month include discussion on: wind pressures, live loads standards and the Chartered exam pass mark.

Publish Date - 29th May 2014

Author – Various

Price – £9

The Structural Engineer

Institution Fellow, Alasdair Beal, questions the lack of technical detail in this book by two concrete experts.

(NB The authors of this book, Costas Georgopoulos and Andrew Minson, challenge Alasdair Beal's review in a Viewpoint article published in July 2014.)

Publish Date - 29th May 2014

Author – A. Beal

Price – Free

The Structural Engineer

Robert Thorne is impressed by the narration and illustration of a book charting this engaging period in London’s structural history.

Publish Date - 29th May 2014

Author – R. Thorne

Price – Free