{{Short description|British civil servant (born 1938)}} {{for|the British recipient of the Victoria Cross|Ian Oswald Liddell}} {{BLP sources|date=June 2009}} {{Use dmy dates|date=April 2018}} {{Use British English|date=April 2018}} {{Infobox engineer | honorific_prefix = | name = Ian Liddell | honorific_suffix = {{postnominals|country=GBR|size=100%|CBE|FREng|FIStructE}} Hon FRIBA |image = |image_size = |caption = |birth_name = William Ian Liddell |birth_date = {{birth year and age|1938}} |birth_place = |death_date = |death_place = |education = Cambridge University, UK and<br/>Imperial College, London, UK |spouse = |parents = |children = |discipline = Structural engineer, Engineering design |institutions = Fellow of the Institution of Structural Engineers, Member of the Institution of Civil Engineers, Fellow<ref name="List of Fellows">{{cite web|title=List of Fellows|url=http://www.raeng.org.uk/about-us/people-council-committees/the-fellowship/list-of-fellows|access-date=21 October 2014|archive-date=8 June 2016|archive-url=https://web.archive.org/web/20160608094405/http://www.raeng.org.uk/about-us/people-council-committees/the-fellowship/list-of-fellows|url-status=dead}}</ref> of the Royal Academy of Engineering,<ref name="List of Fellows"/> Honorary Fellow of the Royal Institution of British Architects |practice_name = Buro Happold |significant_projects = Sydney Opera House<br/>Timber Gridshell, Mannheim, Germany<br/>Millennium Dome, London<br/>The Globe Theatre, London<br/>The State Mosque, Sarawak |significant_design = |significant_awards = CBE, IStructE Gold Medal, Royal Academy of Engineering,<ref name="List of Fellows"/> MacRobert Award, Award of Merit in Structural Engineering }}
'''William Ian Liddell''' (born 1938<ref name="iabse" />) is a structural engineer and the designer of London's Millennium Dome. He was one of the founding partners of Buro Happold and is a Royal Academy Visiting Professor of Engineering Design at Cambridge University School of Engineering. He is now a consultant for Buro Happold.
He studied mechanical sciences at St John's College, Cambridge followed by a diploma in concrete structures at Imperial College, London.<ref name="iabse" />
He was project engineer on the Sydney Opera House, playing a significant role in the formfinding of the iconic roofs. He received the IStructE Gold Medal in 1999.
For his work as Chief Design Engineer on London's Millennium Dome project, he was appointed Commander of the Most Excellent Order of the British Empire (CBE) in the 1999 New Year Honours.<ref>[https://news.bbc.co.uk/2/hi/special_report/1999/12/99/new_years_honours/584140.stm ''New Years Honours: DBE, KBE, CBE civil''], BBC News, 31 December 1999. Retrieved 2011-11-22.</ref>
He is a trustee of the Arkwright Scholarships Trust and the Smallpeice Trust.
== References == {{Reflist|refs=
<ref name="iabse">{{cite web |url = http://www.iabse.org/association/awards/merit/lidell.php |title = Awards of merit:Ian Liddell |work = iabse.org |access-date = 4 December 2010 |url-status = dead |archive-url = https://web.archive.org/web/20041020100545/http://www.iabse.org/association/awards/merit/lidell.php |archive-date = 20 October 2004 }}</ref>
}}
{{IStructE Gold Medal Winners}}
{{Authority control}}
{{DEFAULTSORT:Liddell, Ian}} Category:1938 births Category:Living people Category:Alumni of Imperial College London Category:Alumni of St John's College, Cambridge Category:IStructE Gold Medal winners Category:British structural engineers Category:Fellows of the Royal Academy of Engineering Category:Commanders of the Order of the British Empire Category:Fellows of the Royal Institute of British Architects