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Replacing the piers of an existing continuous box girder bridge with portal structures
The Princes Highway outbound ramp is a 170 m long, five span bridge over the West Gate Freeway in Altona, Melbourne. As part of the West Gate Tunnel Project, at-grade realignment of the interchange configuration required replacement of two of the…
Captain Cook Bridge Bearing Replacement and Halving Joint Strengthening Works
The Captain Cook Bridge (CCB) is an iconic bridge crossing the Brisbane River and is a vital piece of infrastructure connecting the Brisbane CBD to the City's south. The CCB is a post-tensioned precast concrete box girder bridge 550 m in length. The…
Alice River Bridge Pier 4 Settlement - Investigation and Rehabilitation
In late 2019, a concerned driver reported significant settlement at the Alice River Bridge on the Landsborough Highway (Blackall ñ Barcaldine) in Queensland, Australia. This ten span 140 m long bridge was constructed circa 1976, with each pier…
Innovative Solutions to Old Problems - Sustainable Upgrade of Existing Infrastructure - Strengthening & Rehabilitation of the LH Ford Bridge
The LH Ford Bridge, built in the 1960's, comprises 28 spans, is 800m long and crosses the Macquarie River at Dubbo, NSW. The main bridge spans comprise three spans with a 63m centre span (25m drop-in section) supported by halving joints from the…
Concrete Technology and Durability in TMR - Past, Present and Future
This paper will give a brief history of our concrete technology and concrete durability journey within TMR QLD over the last 20 years together with our present position and issues, and where we see some of our future challenges and development.…
Innovative Bridge Engineering Heritage Repair: Birkenhead GFRP BridgeDeck System
The utlisation of glass fibre reinforced polymer (GFRP) materials in civil/structural applications have exponentially increased in the last few years. The increased use of GFRP was in both forms as in new structures, and repairing/retrofitting…
Simplifying construction in a complex live Sydney City multi-track railway station with precast concrete bridge elements
The new Southern concourse bridge in Redfern Station will provide accessible access to all above ground platforms within the station. Redfern is one of the busiest passenger stations on the Sydney Trains network and contains more active above ground…
Bridge CNN Defect Prediction Models Using Existing Image Data
In South Africa, it is a requirement for all road agencies to conduct principal visual inspections of all bridge structures every five years. Smaller municipalities do not always have the necessary funds available for principal bridge inspections,…
Auckland Harbour Bridge Emergency Repairs
In September 2020 a 128 km/hr gust of wind caused a truck travelling over the Auckland Harbour Bridge to tip over damaging a diagonal member of the central truss bridge at the middle of the main span. This incident took the central four lanes of…
Structures on the Tonkin Gap Project in Perth
The $400 million Tonkin Gap and Associated Works Project is part of an infrastructure package announced in 2019, addressing a major bottleneck on Tonkin Highway between the recent Gateway WA and Northlink WA projects and preparing the existing…