St Bride Street

London EC4A

Temporary Works: Façade retention, demolition & refurbishment
 J F Hunt Demolition

St Bride Street temporary façade retention of four storey plus basement building on corner of Farringdon Street, St. Bride Street and Fleet Street.

An external support system for this listed façade was prohibited by the City of London Corporation. An internal support system had to be threaded through the existing structure which had a combination of timber and steelwork construction, resulting from several modifications throughout its 100 year plus history. In addition, the temporary support steel had to be positioned to miss the new steel frame and piles which would be installed later, as well as allowing piling rig access.

CDS developed a scheme for J F Hunt Demolition. The support structure was founded on small bored piles, some of which were located within existing pavement vaults. The support system itself comprised a series of external lattice trusses spanning between a braced tower and a braced portal frame. The use of external trusses reduced the space taken internally whilst allowing large spans. The entire temporary works had to be installed before structural demolition could commence.

CDS devised this alternative support solution, in association with J F Hunt Demolition, to avoid the complicated interfacing between demolition and new steel frame erection, that would have occurred with the original temporary works proposal.