Olympic Stadium Transformation, united kingdom

Photo: LLDC

After the 2012 Olympics, London's Olympic Stadium was transformed into a multi-purpose venue with a new, much larger, roof.

The increased load required significant strengthening of the compression truss and V-columns which support it.

The gravity-stressed roof relies on the tension stiffness of the underlying cable-net for stability, resulting in a highly non-linear structure, which required a complex large-displacement and fully staged analytical approach.

The project was fast-tracked and the stadium re-opened in time for the Diamond League Athletics event in July 2015.