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8180 Bulach
Switzerland
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Sweden
Igelstad Bridge
Project description
Igelstad Bridge is a railway bridge in the Södertälje Municipality, south-west of Stockholm.
The bridge originally opened in 1995 as the longest railway-only bridge in Scandinavia - a length of over 2’000m. Along its length, the bridge spans over the Södertälje Canal, and the E4 motorway.
mageba RESTON®POT bearings were supplied as part of the original construction works and, after almost 20 years in service, the first bearing replacement was required.
mageba was commissioned to re-produce the original TF15 pot bearing in order to ensure seamless replacement – at 35 m above ground level, replacement was no mean feat!
mageba scope
mageba supplied a fixed type TF15 pot bearing, with vertical load bearing capacity over 28’000 kN and a diameter of 1.3 m, to replace that supplied to the original construction.
Despite an increase in both the specified vertical loads (+35 %) and horizontal loads (+300 %) between the new and the original bearings, as a result of changing design codes, mageba was able to reproduce the outer dimensions of the original bearing one-to-one in order that a simple exchange could be made, with minimal disruption and on-site concrete demolition.
Removal of the original mageba RESTON®POT bearing – in service since 1992
New mageba RESTON®POT TF15 structural bearing in place following successful exchange
Key Data
Products: | RESTON® POT bearing |
Features: | Bearing replacement |
Installed: | 2021 |
City: | Södertälje |
Structure: | Concrete box girder railway bridge |
Length: | 2,140 m |
Completion: | 2021 |
Owner: | Trafikverket |
Contractor: | Dipart |
Engineer: | Norconsult |
Client: | GLIM Betongprodukter AB |
