Video - how Arup engineered the Leadenhall building

Engineering consultancy Arup has produced a video showing the remarkable engineering behind the Leadenhall building in the City of London - also known as the Cheesegrater.  Arup worked with architects,Rogers Stirk Harbour + Partners, to create a building where the engineering is a key part of the architecture. The 47 storey skyscraper was built by Laing O Rourke using extensive offsite prefabrication and was opened in 2014.