Project led by Eric Gordon while employed at a previous firm.
London, United Kingdom
Pelli Clarke Pelli Architects; Adamson Associates Architects
Canary Wharf Contractors Limited
The César Pelli-designed, 45-storey commercial tower at 25 Canada Square is one of two buildings in the complex, adjacent to its partner project by Norman Foster, located at 33 Canada Square.
Built in time for the Jubilee Line tube extension in late 1999, the tower’s 1,000,000 ft2 of space over multi-level basement is designed to suit banking and trading operations. Concrete core and perimeter steel columns support the composite floor slabs and long span steel beams.
Challenge: Design the structure to avoid a designated heritage dock wall, known as a Banana Wall, that conflicts with the line of the perimeter columns.
Solution: A transfer A-frame was designed to transfer each of the affected 45 storey steel columns over the designated banana wall. The transfer truss consists of solid steel plate bearing blocks shaped to suit the load direction, and a 150mm-thick solid steel tie plate.