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Performance of New Zealand State Highway Bridges in the Darfield and Christchurch Earthquakes
Many State Highway (SH) bridges were subjected to strong shaking in the 2010 Darfield and 2011 Christchurch earthquakes. Most of these bridges were designed prior to 1970 and although designed for earthquakes a working stress de-sign approach was…
Conformity Assessment for Critical Construction Products for Bridge Infrastructure Projects
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…
Construction of a 50 Metre Long Ultra High Performance Ductile Concrete
One of the most significant breakthrough developments in concrete technology at the end of the 20th century was that of ultra-high performance ‘ductile’ concrete (UHPdC) with compressive strength up to 200 MPa and remarkable improvements in…
Specifying Sulfate-Resisting Concrete
The Sulfate-resisting concrete is traditionally specified by cement type and concrete mix proportions in terms of maximum water-cement ratio and/or minimum cement content.
River Bank & Bed Restoration Works for Bridge Pier
In June 2007, a severe storm over the Hunter Valley caused extensive damage to private and public infrastructure throughout the Hunter Valley. Moderate flooding caused damage to the abutments of the nominated bridges. The NSW RTA engaged the NSW…
New Life for Old Masonry Arch Bridges
Where road schemes require an alteration to alignment, width, or barrier containment standards on an existing bridge, the problems associated with achieving this are often significant. Records for bridges built more than 50 years ago are commonly…
Developments in Modular Expansion Joint Technology: Codes and Testing
Great advances have been made in modular expansion joint technology since this most versatile type of joint was invented forty years ago, and the use of such joints, especially on very large bridges, has increased steadily. As a consequence,…
Fatigue of Road and Rail Bridges - Repair Techniques
A Consortium of the Welding Technology Institute of Australia (WTIA) members consisting of Australian Rail Track Corporation (ARTC), RailCorp, Roads and Traffic Authority of New South Wales (RTA), and Transport Main Roads (TMR), Queensland has…
Restoration of the Historic Tharwa Bridge
The restoration of Tharwa Bridge in the ACT has achieved the objective of providing a high level flood route and main thoroughfare across the MurrumbidgeeRiver, while preserving the structure’s national heritage value. The design has kept as close…
Peninsula Link: Frankston Stony Point Railway Bridge
The Frankston Stony Point Rail Bridge crosses over the Peninsula Link Freeway, located on Victoria’s Mornington Peninsula. In this location the Frankston Stony Point rail line comprises a single bi-directional broad gauge track carrying regional…