Crossrail Station Abbey Wood, London, United Kingdom
With the Crossrail railway line in Great Britain, one of the biggest infrastructure projects of Europe is in progress. The construction costs for the 118‑kilometre railway line amount to about €21 billion. It runs from Reading in Berkshire in the West to Shenfield in Essex in the East crossing through the centre of London.A branch line runs under the Thames to Woolwich and ends at the recently completed Abbey Wood Station. Its extraordinary timber roof construction has the shape of a huge manta ray which seems to hover above the station.
Crossrail Limited, UK
Network Rail Limited, UK
Fereday Pollard Architects Ltd., UK
|Structural Analysis Timber Construction||
enartec - engineering + architecture, Italy
|Timber Construction Prefabrication, Work Planning and Assembly||
WIEHAG Holding AG, Austria
Two Dlubal customers have been involved in the project. WIEHAG Holding AG planned, produced and assembled the timber structure, the engineers of enartec – engineering + architecture performed the structural analysis for the roof structure in RFEM.
The roof made of larch and spruce glulam timber with the dimensions 164 ft x 181 ft has a total area of 17,222 ft2. Four single-curved primary supporting bars made of glulam timber form the basis of the roof structure. They were designed as articulated beams and each beam has a total length of 148 ft.
Single and double-curved secondary beams are connected to the primary beams with a centre distance of two metres. 18 straight or single‑curved tertiary supporting bars are included as well. Three‑layered plates made of natural larch and spruce wood are used to build the roof supporting structure.
The roof is supported by columns and beams made of steel. The bracings and the edge beams of the roof are made of steel as well. A total of 30 tonnes of steel were used.
Once the Crossrail railway line will be completed in 2019 as planned, the free form roof structure of the Abbey Wood Station is certainly one of the architectural highlights of this major project.
Do you have questions or need advice?
Contact our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.
Since wind on laterally open structures is not addressed in the Eurocode, the 4 cases of the German DIN 1055 Part 4 are referenced.
Interior view of the timber roof structure of the Crossrail Station Abbey Wood (© www.chrismansfieldphotos.com)
3D model of the supporting structure of Crossrail Station Abbey Wood in RFEM (© enartec - engineering + architecture)
SHAPE-THIN determines the effective cross-sections according to EN 1993-1-3 and EN 1993-1-5 for cold-formed sections. You can optionally check the geometric conditions for the applicability of the standard specified in EN 1993‑1‑3, Section 5.2.
The effects of local plate buckling are considered according to the method of reduced widths and the possible buckling of stiffeners (instability) is considered for stiffened sections according to EN 1993-1-3, Section 5.5.
As an option, you can perform an iterative calculation to optimize the effective cross-section.
You can display the effective cross-sections graphically.
Read more about designing cold-formed sections with SHAPE-THIN and RF-/STEEL Cold-Formed Sections in this technical article: Design of a Thin-Walled, Cold-Formed C-Section According to EN 1993-1-3.
Is it possible to calculate American steel cross-sections?
- Where do I find the setting to specify the entered structural component as a "wall" or "slab"?
- How can I quickly model a chimney with reinforcement rings and stiffeners?
- The protocol lacks information on the limit time for the assessment of fire resistance R in the RF-TIMBER Pro add-on module. Can this information be added to the report?
- How can I model and design general bolted connections with the surface and solid elements in RFEM?
- I get the message "Existing torsion -> no stability design possible." Why does this appear and what can I do?
- I design an asymmetric cross-section and get the message: "Non-designable: ER051) Moment about z‑axis on asymmetric cross-section, taper or set of members." Why?
- How can I consider holes in steel members?
- How can I model a timber-concrete composite floor?
Is it possible to model and design tapered castellated beams in RF-STEEL AISC?
Programs Used for Structural Analysis
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
Stress analysis of steel surfaces and members
Design of steel members according to Eurocode 3
Timber design according to Eurocode 5, SIA 265 and/or DIN 1052