Complete issue (November 2012)
Date published

26 October 2012

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Complete issue (November 2012)

The Structural Engineer
Complete issue (November 2012)
Date published

26 October 2012

Price

Standard: £9 + VAT
Members/Subscribers: Free

Buy Now

All articles published in the November 2012 issue.



(NB Technical Guidance Note Level 1, No. 18 contained within this issue was updated in October 2016. For the updated article, see the individual article entry for this issue.)

Additional information

Format:
PDF
Pages:
68
Publisher:
The Institution of Structural Engineers

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Issue 11

Related Resources & Events

The Structural Engineer
<h4>Performance based seismic design of an offshore platform in the Caspian Sea</h4>

Performance based seismic design of an offshore platform in the Caspian Sea

The development of gas fields in a highly seismic zone in the Caspian Sea required an innovative offshore platform. Arup were the detailed designers of a self-installing gravity based structure (GBS) to meet this demand – the first such platform to be commissioned in the region. Arup became involved after an elastic analysis based prescriptive design approach predicted the platform to have inadequate capacity to withstand signifiant seismic events. The Arup team adopted a performance based approach, in combination with advanced non-linear analyses, to demonstrate the suitability of the design for use in this location. Non-linear time history soil-structure interaction finie element analyses were used to demonstrate that the GBS platform satisfied the peformance requirements of ISO 19901-21. In addition, the performance based approach provided the client with an improved understanding of the likely response of the structure to a real earthquake and a greater ability to manage the risks associated with the facility.

Date - 26 October 2012
Author - Rupert Gibson BEng, MSc, CEng, MIMechE Tom R Wilcock MEng, CEng, MICE Damian N Grant PhD, PE David A Gration BEng, CEng, MIMechE (All authors are with Arup, London)
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The Structural Engineer
<h4>Innovative funicular tile vaulting: A prototype vault in Switzerland</h4>

Innovative funicular tile vaulting: A prototype vault in Switzerland

This paper presents advances in funicular tile vaulting, made possible through innovation in form finding, falsework systems and construction methods. A full-scale prototype has been realised with the application of new research in the following areas: newly developed structural design tools based on Thrust Network Analysis (TNA), which allow one to generate novel shapes for funicular (compression-only) structures; an efficient digitally fabricated cardboard falsework system, which provides accurate description of a complex reference surface in space; and adaptations of traditional tile vaulting techniques, which have introduced strategies for generating continuous tiling patterns, non-uniform vault thickening, and construction sequencing for structural stability. The methods described in this paper, as applied for the design and construction of the prototype vault, have offered new insights to the challenges of new funicular form for masonry and have paved the way for future research and applications.

Date - 26 October 2012
Author - Lara Davis, BFA, MArch Research Assistant Matthias Rippmann, Dipl.-Ing. Research Assistant Tom Pawlofsky, MA Research Assistant Philippe Block, BSc, MSc, SMArchS, PhD Assistant Professor (All authors are with the Institute of Technology in Architecture, ETH Zurich)
Price - £9
The Structural Engineer
<h4>Winter's tales</h4>

Winter's tales

As winter draws closer in the UK, Structural-Safety’s Alastair Soane cites several examples of recent weather-induced structural damage.

Date - 26 October 2012
Author - A. Soane, Structual-Safety
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