TDS Midlands Ltd
Opening footbridge across wharf waterways
Bellmouth Passage is an opening footbridge to allow for the movement of boats through the waterways of Canary Wharf. Due to the mechanism involved in lifting the bridge and the landing nose support, stair access was required to each side of the bridge. One end of the stairs hide all the pivot and ram structure and the other end hides a landing support structure for the nose of the bridge when in its "down" position. All the stair support structure and landing had to be carefully positioned around the ram / pivot structure with a number of doors through the cladding to allow access for maintenance.
Accurately model in complex cuts
The design of the stair balustrade and cladding had several raking angles meaning the majority of component intersections were not square cut. Using Tekla enabled us to accurately model in complex cuts and profiles simply not possible using 2d software. Being able to export components in STP files (a file format used by 3D mechanical software) helped in the manufacturing of the complex panels. CAD reference models were imported to overlay arhcitects plans to ensure accurate postions of both stairs in relation to the bridge. CAD drawings were also exported to help with the manufacture of aluminium cladding and stainless steel balustrades. The project combines a mild steel support structure, stainless steel balustrade and tie wires, aluminium decking and cladding, timber handrail and stone treads.