Publications

The Newmarket Viaduct plays a vital role in the Auckland motorway network. The original 1966 structure is being demolished in tandem with construction of its replacement whilst keeping the motorway fully operational. The New Zealand Transport Agency…

The New Zealand Transport Agency (NZTA) has owned and operated emergency Bailey Bridges for about 60 years. These bridges are available for emergency and semi-permanent use by public users (Central Government and Local Authority) and private users.

A 350m long bridge has been constructed over the Hunter River near East Maitland as part of Third Hunter River Crossing Project. The bridge consists of 12 spans of Super-T girders with central spans of 30m. The bridge is located in an area that is…

Inorganic zinc silicate coatings have been an attractive coating for steel bridges due their excellent long-term corrosion protection extending for up to 40 years. The re-coating of inorganic zinc silicate coatings has been regarded as a difficult…

The needs for structural health monitoring in Japan originally come from its geographical conditions such as severe environment for deterioration and frequent natural disasters. Monitoring of the environment and loading conditions with respect to…

For the design of concrete box girder bridges, many bridge design engineers adopt the shear and torsion design rules of the AASHTO LRFD Bridge Design Specification. However, with each new Edition of the AASHTO LRFD Bridge Design Specifications, the…

Structural analysis has progressed a long way from hand calculations and the use of distribution factors. From the first computer methods, grid and grillage analysis techniques evolved, leading through progressive enhancements to the advanced 3D…

This paper provides guidelines for load rating of existing bridges. It is based on internal notes regarding criteria and practice for load rating of bridges and consideration of multiple vehicle presence over structures with varying numbers of heavy…

This paper considers how several recent pedestrian-oriented bridges, all on Auckland’s Western Ring Route, provide new connections or re-establish severed connections between communities. As the architect involved in these bridges, I will also…

It is essential bridge infrastructure projects be constructed from materials conforming to the relevant standard. Historically, Australian Standards have detailed the performance criteria in construction products are required to achieve, but…