Northshore Footbridge, Stockton
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NORTHSHORE FOOTBRIDGE, STOCKTON PROJECT Northshore Footbridge CLIENT Stockton Borough Council MAIN CONTRACTOR Balfour Beatty Ltd. VALUE £4.7m TONNAGE 450Te clevelandbridge.com Northshore Footbridge (later named the Infinity Bridge) is the focal point for an urban regeneration scheme linking new development on the north shore of the River Tees in Stockton to an existing business park to the south. Scope Fabrication This iconic structure is a 2-span The trapezoidal arch boxes and other tied arch, having its 120m main steelwork elements of the structure span structurally continuous with were fabricated in Cleveland Bridge’s a 60m-side span. The steel arch Darlington facility. The sizes of the is a single slender rib at each end elements were designed to allow widening and bifurcating within the them to be transported to site by spans to form a double rib over the road haulage. river pier. Thin precast concrete deck units are suspended from Throughout the fabrication Cleveland the arch and prestressed together Bridge utilised state of the art longitudinally to form the arch ties. engineering techniques including a The bridge spans the 125m wide virtual trial assembly to ensure that River Tees linking the Teesdale the fit up of the complex shapes was Business Park (Southbank) with the assured when delivered to site. North Shore Development. Installation Role “ The efforts of you Sub assembly areas were established Cleveland Bridge were responsible for on the North and South banks of and your colleague’s, assisting in the design development the Tees to allow the fabricated and your focus on of the structure with the lead steel sections to be formed into solving problems and designers (Expedition Engineering), larger elements. This culminated fabrication of the structural steelwork, in the main arch lift (approximately approaching challenges procurements of major components 170Te) being conducted with the in a positive manner (Tuned Mass Dampers and Cabling) UK’s largest mobile crane (Gottwald have been, quite simply, and the erection of the steelwork and AK680). Bespoke temporary works concrete deck units. then allowed the tie cables to be an example to the installed in preparation for the deck construction industry unit installation performed from a on what is achievable Design jacking platform positioned on a barge on the river. when a true partnership Cleveland Bridge provided expert working culture is advice to the designer on erection methods and details for ease embraced.” of fabrication and buildability. Completion Cleveland Bridge’s sister company Neil Schneider, Chief Executive Cleveland Bridge commenced on Dorman Long Technology then of Stockton Borough Council site in late March 2008 and had provided full erection engineering completed the erection of the services including erection superstructure including the deck scheme design, stage by stage installation and tie cable stressing erection analysis of the structure, by mid October 2008 in accordance aerodynamic response analysis, with the contract programme. conceptual and detailed design of all temporary works and equipment, and production of method statements. Cleveland Bridge UK Ltd. T. +44 (0) 1325 381188 Cleveland House, Yarm Road, F. +44 (0) 1325 382320 Darlington, Co. Durham DL1 4DE, UK E. [email protected] clevelandbridge.com.