industry news
UK’s largest CRFP plate bonding project enhances strength of 100 year old cast iron beams at Embankment
solution was required to provide long term strengthening to over 90 cast iron beams. Following an extensive design and specification process, the result is the UK’s largest ever applica- tion of ultra high modulus composite reinforcement, supplied by global building product manufacturer Sika and national specialist contractor, CRL. Covered Ways CW17 and CW20
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are on either side of Embankment Station on the District line, built in the 19th
Century using ‘cut and cover’
techniques. The covered ways carry the weight of Embankment Gardens situated above the District line tracks. Although the cast iron beams were assessed and found to be adequate to support the intended loadings and in a good serviceable condition there was serious concern that the cast iron beams could be overstressed, under unforeseen overloading. London Underground undertook a
feasibility study to determine the best all round solution to complete this strengthening. Both economically and logistically the best solution was to strengthen the beams in-situ. London Underground had to ensure the chosen repair solution would have minimal impact on the tunnel head- room and could be installed during Engineering Hours (overnight when there is no train service) so as to cause no disruption to the District and Circle line services. With a reinforced steel element deemed too thick to be a viable option, a thin yet tough system was required. The solution to the challenge lay
with Sika CarboDur UHM and a well planned application procedure. An
s part of a major strengthening programme on the London Underground, an innovative
Ultra High Modulus Carbon Fibre Reinforced Polymer (CFRP) system, Sika CarboDur UHM is designed for high performance and demanding reinforcement applications. The plates, measuring 7.3m long, 200mm wide (2no per beam) and maximum 4.7mm thick and offering exceptional reinforcing capability, proved the ideal solution. With over 1,300m of Sika Carbodur UHM plates applied, it has marked the UK’s largest ever project to use ultra high modulus composite. To minimise service disruption on
the District and Circle lines, the entire process was scheduled to be deliv- ered in a series of shifts between 1am and 5am, over a period of six months. In each shift, the project team had to erect scaffolding, trans- port the equipment and materials to the desired location and clean and prepare the beams before apply- ing the Sika CarboDur UHM plates and temporary supports. The sup- ports, scaffolding and equipment was then removed to allow the under- ground to reopen. By overcoming the extreme time
and spatial constraints of the London Underground, the client, contractors and material suppliers demonstrated outstanding workmanship and expertise to complete the project on time and on budget. Delivered over a six month period,
the project was successfully finished to the highest standard with the con- tractors reinforcing an average of two beams per night on-site. Thanks to a well-organised, detailed process, this length of London Underground was able to remain fully operational throughout, with the service’s pas- sengers entirely unaware of the vital work being undertaken.
The Library of Birmingham – a world-class library for the 21st
Century
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ubiqa UK is proud to announce they have been chosen by the Library of
Birmingham to supply the mobile, static and 2-tier shelving for what is described as ‘one of the world’s most exciting and ambitious cultural projects. This impressive project to supply the Electronic mobile shelv- ing is worth between £3.1 – £3.4 million and the library is expected to open to the public in 2013. Qubiqa has built up a very impres-
sive portfolio of clients in both the library and heritage sectors in the last several years including installing systems in a number of high profile
new builds and refurbishments. This unrivalled track record together with the state of the art system function- ality, impressed both the main con- tractor and client alike. The users were looking for a system that could meet and embrace the changes, both technological and physical, which will be demanded in the new library. The Qubiqa systems will be used for both the Cultural (library) and Heritage (historic archives) col- lections as well as having smaller systems, which will be used by the public in an open access environ- ment on different floor levels.
OAG completes glazed roof at Cannon Place
T
he installation of two new glass roofs at the spectacular Cannon Place project in
London, has recently been com- pleted by specialist architectural glazing contractor OAG. The project, designed by archi-
tects Foggo Associates, will see the creation of new state of the art offices located directly above Cannon Street station. The scheme is part of a larger project that will see significant improvements made to the rail and underground stations, including the introduction of new retail units. To make way for the new 37,250
square metres of offices and retail space, the 1960s buildings above the station have been demolished. As part of the creation of the new structure – an expressed steel mega
structure that spans and cantilevers over the railway and underground stations and tracks – specialist con- tractor OAG are undertaking the installation of architectural glazing. This includes the installation of two glass roofs along with the glazed lift fronts and the structural glass façade to the building’s main recep- tion. The lift fronts and structural glass façade are currently being completed. OAG has also secured a further
package of works – the creation of an impressive 20 metre x 6 metre back lit LED wall in the building’s main reception. The project, which is being built
by main contractor Laing O’Rourke for leading developer Hines, is due for completion in September 2011.
Design and innovation in timber Informative and inspirational, TRADA’s flag- ship In Touch with Timber conference spans both days of Timber Expo 2011 with speak- ers from leading industry practices and organisations. Tuesday 27th
Timber – the first choice for excellent design: Hopkins Architects, Edward Cullinan Architects and Knox Bhavan; 1.30pm - 4.30pm Growing the commercial sector: Tesco, Bryden Wood Architects; B&K Structures and Willmott Dixon. Wednesday 28th
September: 9.30am –
12.30pm Improving processes and perform- ance: Cartwright Pickard, Ramboll, Max
Fordham and David Grindley Architects; 1.30pm – 4.30pm Inspiration from abroad: Code Architects (Norway), Strombro Building Workshop (Sweden), CREE (Austria).
September: 9.30am – 12.30pm
www.buildingconstructiondesign.eu 7
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