Underpinning is underway in central Hampstead following completion of the temporary shoring and installation of plunge columns to create clear access to the excavation. SD Structures have undertaken a full service on this project including temporary works, construction phasing, 3D reinforcement detailing, connection design, and traditional structural design. A key element to the design is a set of floating staircases with a four storey high prestressed cable balustrade which has been developed using Non-Linear Methods.
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