Crossrail station Abbey Wood
A sophisticated free-form
The Abbey Wood station is the terminus of the Crossrail line and has the shape of a ray. This roof form was planned by architects Fereday + Pollard. The roof area extends over 1,600 square metres. "The safety requirements in railway construction in the UK are extremely high and very challenging," explains WIEHAG UK Sales Manager, John Spittle. In addition to high-precision CNC prefabrication of the timber, 30 tonnes of steel were also required for assembling the supporting structure.
The complex support structure was implemented as follows
The loads of the mighty timber roof construction are transmitted to a steel structure consisting of beams and support columns. The timber construction can essentially be divided into four components:
- Four single-curved primary support members designed as a cantilever girder system, with a total length of 45 m per member.
- Single and double-curved secondary supports connected primarily using the WIEHAG WHB system to the primary trusses.
- 18 straight or single-curved tertiary support members.
- Around 1,600 m² of 3-layer natural wood boards made of larch and spruce.
The construction details
- Roof dimensions: 50 m x 55 m
- Larch and spruce GLT members in “visual quality”
- Around 1,600 m² of 3-layer natural wood boards
- Around 30 t of steel
- Radius of curvature of primary support members of up to 8 m
- Support and wall bracing system made of steel
- Roof structure and roof area of 1,600 m²
- Underlying steel girders
- GLT round columns made of larch with a steel core
- London (GB)
- Balfour Beatty Rail Projects Ltd.
- Fereday + Pollard
- Construction period
- 2016 – 2018
- Total order value
- 1.4 million euros
- Roof area
- 1,600 m²