www.psam.uk.com Ceremonial cables
During June 2011 the clouds cleared above the main stadium in the Olympic Park as regards what the events at the opening and closing ceremonies would require structurally. An additional cable net, actually a number of cable structures to be exact, were to be integrated in the roof structure as required for the events.
A range of cable sizes, from 17mm up to 65mm, were used. Again, customised clamps and connections to the existing roof had to be made. The ongoing detailed engineering for the services using the cable nets had to be accommodated. The loads of the equipment to be supported by these nets finally resulted in a total of 600 tons. At a certain stage reasonable interfaces had to be defined in order to finalise the fabrication of the cable nets.
Four different cable nets were then pre-assembled on the existing pitch, without doing harm to the grass, lifted, connected and tensioned one after the other during January and February 2012.
The cable nets used for the ceremonies were nearly invisible to the spectators,
who were more fascinated by the actual events in the stadium, but they performed strongly.
During the Olympic Games Pfeifer was responsible for the necessary inspection works on its structures. The engineered dismantling of the ceremony cables, since they were only temporary, followed after the Olympic and Paralympic Games were finished.
Main stadium refurbishment
The London 2012 Olympics main stadium was originally meant to be a temporary item, at least for the most part. Now the City of London has succeeded in finding users for the
showcase
CONSTRUCTION & engineering
stadium and has also secured the Rugby World Cup 2015 and the track and field world championship 2017. For these reasons the stadium will be refurbished according to the relevant sporting specifications, which means that there will be a new, wider roof on top of it – a cable-based structure. Pfeifer has been commissioned to supply a cable net, again with full responsibility for engineering, supply of cables, all connections and the installation.
All London contracts have been awarded to Pfeifer for a full scope of engineering, fabrication and erection. This latest contract for Pfeifer on the London Legacy Stadium is a signal for the market of light-weight tensile structures – a signal that good cooperation and performance is acknowledged by the client. Partnership is about solving problems and not causing some. This is the way to grow the future market for light-weight tensile structures. The London experience will go on.
© LOCOG, Anthony Palmer
Worldwide architects, engineers and clients rely on our expertise, experience and service during all stages of planning, fabrication and installation of cable structures.
more information
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