98 Category 2: Civil Structures 2 Queensferry Crossing - Firth of Forth, Scotland AP Contact Peter Walser Address Heilbronner Straße 362 70469 Stuttgart, Germany Website www.lap-consult.com Leonhardt, Andrä und Partner consultancy was founded in 1939 by the famous master builder Fritz Leonhardt. The consultancy focuses on tunnels, buildings and challenging bridges in all design and construction stages, from first brainstorming and feasibility studies through preliminary and detailed design, construction engineering, site supervision, technical expertise and independent checking. CHP Constructions specializes in providing structural detailing services for reinforced concrete, steel and timber structures to other engineering consultancies. See www.chp-con.de for more information. Owner Transport Scotland Architect Transport Scotland, Jacobs / Arup General Contractor FCBC (HOCHTIEF / Dragados / American Bridge / Morrison) Engineering Office Leonhardt Andrä und Partner / Rambøll / Grontmij Construction Period 2011 - 2016 The Queensferry Crossing over the Firth of Forth near Edinburgh is the largest bridge project in Northern Europe currently under construction. Including approach viaducts, the bridge has a length of 2,638 m. Three towers up to 210 m high and two main spans of over 650 m provide clearance for the two navigation channels and make it the world’s longest three tower cable-stayed bridge. A unique and instantly recognisable engineering innovation is the 146 m overlap of stay-cables at mid-span, providing extra stiffness for the windy location and enabling the towers and decks to be more slender than on a traditional design. Allplan has been used for the tender design and the reinforced concrete detailing of the three towers and two tie-down piers. Unusually for a bridge of this scale, a fully detailed 3D reinforcement model has been created. Despite technical and design challenges resulting from the tapered towers and high reinforcement ratios, especially at the power joint between main deck and the central tower, the complete reinforcement detailing has been delivered with precise dimensions and collision-free to the construction site on time. The smart design with the central tower sitting on the conveniently located Beamer Rock island and highly optimized construction allowed the contracting consortium to bid for £790 million, a price £260 million below its nearest competitor. Leonhardt, Andrä und Partner AG
RkJQdWJsaXNoZXIy MTgyMDE=