The NorthWest Rail Link elevated viaduct is part of the Sydney Metro Northwest rail line between Kellyville and Rouse Hill. The 4km ‘skytrain’ consisted of 124 spans with a 270m long stay cable bridge constructed over Windsor Road at Rouse Hill. The skytrain runs parallel with Windsor Road and was constructed using a combination of overhead gantry, under slung gantry and false work. Freyssinet’s scope included Construction Methods for segment erection on falsework, demolition, Stay cables, Post tensioning and Bearings.

  • Customer/Owner:
    Transport for NSW
  • Works period
    January 2014 - September 2017

Freyssinet Scope

Design and supply of the pot bearings include:

  • Total of 476 pot bearings
  • Total bearing weight was 205 ton with largest individual bearings weighing 6.9 ton (1.8m x 1.8m) on the stay cable bridge.

Installation of pot bearings was also conducted by Freyssinet:

  • Bottom mortar pad constructed in advance of the superstructure erection.
  • Top mortar pad integrated with the erection cycle to determine timing of grouting.

Erection of the superstructure of North West Rail Link (NWRL) Stay Cable Bridge and approach spans including the following

  • Installation of 32 stay cables H2000 of unit 127.
  • Installation of H2000 unit 91 strand hold down stay cable in Piers
  • Installation of H2000 unit 48 strand hold down cables in back spans
  • Pilecap transversal Post tensioning
  • Pier vertical Post tensioning
  • Transversal Post tensioning in deck diaphragm
  • Longitudinal Post Tensioning in deck
  • Approach spans Post tensioning
  • Erection of 45 spans on falsework

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