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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…
Austroads Project ABT6141 - Guide to Bridge Technology Part 7 Update: Bridge Inspection Harmonisation
Austroads is currently updating Section 3: Inspection, Testing, Monitoring and Reporting of the Guide to Bridge Technology Part 7: Maintenance and Management of Existing Bridges. The project involves taking a fresh look at the inspection process to…
Use of new generation spherical bearings for a challenging bearing replacement project
Pot bearings installed in bridges constructed before 1970 are coming to the end of their nominal 50-year design life. In recent years, a new generation of spherical bearings has become available as an alternative to pot bearings. These bearings…
The Replacement of the Castlereagh Road Rail Bridge in Penrith Using a Self-Propelled Modular Transport System
Castlereagh Road is a key transport corridor in Western Sydney which was constrained by the existing rail overbridge at Penrith on the Sydney Trains Main Western Line adjacent to the Great Western Highway. A new bridge spanning 40m across the…