Author: T. Stratford (The University of Edinburgh)
1 August 2016
T. Stratford (The University of Edinburgh)
The article discusses the motivation for these changes, the steps that have been taken to create a “design thread” for students, the results that have been achieved, future challenges relating to digital engineering, and learning points which will help other universities wishing to set out on a similar path.
The Connaught Tunnel is a 19th-century brick-lined structure that has been renovated to facilitate the route of the southeast spur of London’s Crossrail project from Canary Wharf to Abbey Wood1. Modifications include the total replacement of the original, twin, single-track tunnels (lined in brick and cast steel) with a single, twin-track, reinforced concrete box. This was partially built in situ where the alignment passes beneath existing dock walls, and partially in cofferdam where it crosses the dock passage between the two Royal Docks (Albert and Victoria). Inverts in the original tunnels were lowered in places to accommodate the design train envelope and overhead line equipment. This paper outlines the constraints inherent in an undertaking of this nature, and describes the analytical processes that were adopted to assess the performance of the existing brick structures and the new central concrete box section.
All the articles published in the August 2016 issue.
Bamboo is a strong, fast growing and very sustainable material, having been used structurally for thousands of years in many parts of the world. In modern times, it has the potential to be an aesthetically pleasing and low-cost alternative to more conventional materials, such as timber, as demonstrated by some visually impressive recent structures. This first article provides an introduction to bamboo and the physical characteristics that are relevant to structural design. Basic properties, along with a selection of suitable structural species, are presented, and fire resistance and specification of bamboo are discussed, along with other considerations as to whether bamboo is suitable for a particular project.