Prestressed concrete bridge with 8 spans (48 + 4x76 + 68 + 61 + 33). Total length:
514 m. Built using the balanced cantilevering method.
The Waiwera Viaduct was constructed as two independent structures, which have a
separation varying from 2.5 m to 11 m. The variable separation was necessary to
split the northbound and southbound lanes before entering the tunnels, which are
situated immediately north of the viaduct.
Waiwera Bridge, New Zealand
The bridge superstructure is the tried and tested pre-stressed concrete box girder
and was constructed using a precast segmental balanced cantilever method using
an overhead gantry. This method was chosen since it allowed the superstructure to
be constructed without access from ground level; the ground is off-limits in case
habitats are disturbed or damaged.
- Waiwera Viaduct, New Zealand
- URS New Zealand Ltd, Auckland, New Zealand
- State of Construction:
- TDV Involvement:
- Bridge modelling
- General advice on construction stage analysis
- Nonlinear Structural Analysis for Construction Stage and Final Stage
- Optimization of the stressing procedure for the tendons
- Analysis of the final closure of the bridge