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National ITS Architecture: ITS Business Architecture
A key initial step in the development of the National ITS Architecture for Australia is to build the conceptual ITS Business Architecture platform on which subsequent and more detailed architectural models can be built.
National ITS Architecture: Context and Vision
The proposed Australian National ITS Architecture is intended to allow transport agencies and ITS–related organisations describe and develop ITS solutions using a consistent terminology and content.
New Prequalification Categories Proposed: Steel Fabrication and Pre-cast Concrete Products
In late 2014 Austroads sought feedback on a proposal to add two new specialist categories to Australia’s National Prequalification System.
Proposed Revisions to AS 5100 Part 5: Concrete
Since the introduction of the current Bridge Design Standard in 2004 there have been real advances in both design and construction methods and in materials technology. The Part 5 Standards Australia Sub-Committee (BD090-05) has responded to this…
Time-Variant Performance Indicators for Concrete Bridges Exposed to Corrosion
The life-cycle performance of concrete bridges exposed to corrosion is investigated based on a set of time-variant probabilistic performance indicators including structural reliability, redundancy, robustness and resilience. The performance…
Long-Term Performance of Concrete Bridges Under Extreme Events
Reinforced concrete (RC) structures in a marine environment deteriorate with time due to chloride-induced corrosion of reinforcing bars. Corrosion is initiated by chloride contamination if the structures have poor quality concrete and/or inadequate…
Influence of Placement Method on In-Place Hardened Properties Of Deep Foundation Using SCC
The use of self-compacting concrete (SCC) in identified concrete bridge elements has now been incorporated in NSW Roads and Maritime Services QA Specifications B80 as Annexure B80/G. The use of SCC in precast elements is generally allowed while a…
Life-Cycle Management of Bridges Based on Robustness to Deterioration
In this paper a framework for assessing the robustness of existing reinforced concrete structures under corrosion is presented. Robustness is defined as a structural property related to the tolerance to damage and is measured by the mean performance…
Experimental Testing of Emulative Connections for Accelerated Bridge Construction in Seismic Areas
The use of precast concrete for construction of bridge substructures offers a number of advantages over the conventional use of cast in place (CIP) concrete. These advantages include increased construction speed and quality, minimised traffic…
Effect of Crack Control Measures in AS 5100.5 on Partially Prestressed Super-T Girder Bridges
Australian bridge design code AS 5100.5 in Section 8.6.2 prescribes simplified criteria to meet the requirements for crack control applicable to a partially prestressed concrete beam. The incremental stress permitted in bonded reinforcement after…