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All articles published in the April 2013 issue.
(NB Technical Guidance Note Level 2, No. 4 contained within this issue was updated in October 2016. For the updated article, see the individual article entry for this issue.)
Publish Date - 26 March 2013
Based on his 2013 James Sutherland History Lecture, Bill Addis looks back over three centuries of model testing; from the design of St Paul's Cathedral in the 1670s to the introduction of computer modelling in the 1980s.
In the past accidents have been caused by cranes overturning due to overload or poor ground support. Cranes have collapsed when not properly assembled; loads have fallen (including counterweights) or swayed and impacted with people/buildings. This article highlights the different types of crane available (and the factors which determine their use), the process for introducing a crane onsite and the specific requirements when using tower cranes.
Sean Brady highlights potential similarities between the recent Sasago road tunnel collapse in Japan and the catastrophic failure of part of Boston’s I-90 Connector Tunnel in 2006.
This Technical Guidance Note defines the concept of fatigue and how its effects can be countered.
The subject of this guidance note is the design of reinforced concrete beams to BS EN 1992-1-1 – Eurocode 2: Design of Concrete Structures – Part 1-1: General Rules for Buildings. It covers the design of multispan beams that have both ‘L’ and ‘T’ cross section profiles.
(This article was updated in October 2016 to reflect errata issued since its original publication.)
Combinations of timber or laminated sections with different materials such as wood-based boards or metal elements are used to create ‘engineered wood products’ (EWPs) whose maximum size is limited only by manufacturing, handling and
transportation constraints. Different types of EWP are described here, in addition to timber structural systems and their structural applications.
This paper describes an innovative Japanese technique for constructing bridge foundations underwater.