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Condition Assessment and Load Rating of Arched Bailey Bridge
The Bailey bridge system was originally invented for military usage during World War II. Since then, it has been used to meet emergency or temporary bridge needs. It has also been widely used as a permanent solution for pedestrian and road bridge…
Anzac Bridge Maintenance Project: Bridge-Specific Assessment of Live Load
Sydney’s ANZAC Bridge was recently the subject of a maintenance project which addressed four main areas to improve the future performance of the structure. These areas were: stay cable improvements; access improvements; fencing and temporary works.…
Bridge Widening on Auckland’s Causeway Upgrade
The State Highway 16 Causeway Upgrade Project forms one section of the NZ Transport Agency’s Western Ring Route around Auckland, which is due to be completed by early 2017. The project improves, widens and raises approximately 4.8 km of motorway,…
AS 5100.7 Bridge Assessment: 2014 Revision
The current 2004 revision of AS 5100.7 provides guidance on bridge rating which is the comparison of one assessment loading or vehicle to a code design load. The assessment loading or vehicle can be either a former code design load or a specific…
Assessment Ratios for Evaluating Access by Heavy Vehicles to the Bridge Network
Each year, the Queensland Department of Transport and Main Roads (TMR) receives thousands of requests to allow innovative vehicles, cranes and heavy load platforms to access Queensland’s road and bridge network. The need to respond to these requests…
An Investigation into Graphitic Corrosion of Cast Iron Bridge Piers
Cast iron was extensively used in bridge piers in early metal bridges in Australia. These cast iron bridge piers have performed well against atmospheric corrosion. However, the portion immersed in water suffers from graphitic corrosion, a form of…
New Fatigue Design Loadings for New Zealand Road Bridges
Fatigue design of new bridges in New Zealand must consider the future demands from increasing heavy freight volumes and higher productivity vehicles. The new vehicles are designed to carry more freight with fewer trips to offset the reduced…
Upgrading NZ Bridges for High Productivity Motor Vehicles
New Zealand (NZ) has introduced High Productivity Motor Vehicles (HPMV’s) to improve freight efficiency on its road network. The significant increase in vehicle mass limits has required a national bridge load capacity evaluation and strengthening…
Anzac Cable Stayed Bridge Health Monitoring
Roads and Maritime Services of Transport for NSW in collaboration with the Bridge Solution Alliance formed by Freyssinet, Lend Lease and Sage Automation undertook a major maintenance project to solve stay cable vibrations, strengthening-related…
Structural Assessment of Freight Bridges in Queensland
All road authorities have a range of bridges of varying ages and design classes, which have transitioned over time to carry modern heavy vehicles. This paper reports the structural assessment procedures adopted by the Queensland Department of…