Leeds Metropolitan University Portland Gate-Engineering the Rosebowl, UK

摘要

The Portland Gate development is a new facility housing the School of Business and Law at Leeds Metropolitan University. A key feature of the building is the landmark steel-framed "Rose-bowl". This freestanding structure lies partially within the main atrium space and houses seven lecture theatres. The 25 m tall Rosebowl is supported on bespoke double storey Y-columns, each weighing between 3 and 5 t. These triangular tapered profile sections provide horizontal stability and vertical support to the diagrid structure above. This paper follows this unique structure through the design, fabrication and erection process. This includes a review of the global buckling assessment of the Rosebowl and the detailing and fabrication of the architecturally exposed sway elements.