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The New AS 5100.5
  • ABC2017-072-17
  • 21 Apr 2017
  • Bridges
The new AS 5100.5 Concrete has been heavily revised since its last issue in 2004.
Development of a New Concrete Girder for Road Bridges
The paper describes the development, design and construction aspects of a completely new precast, prestressed concrete girder for road bridges.
Reliability-Based Increases to Capacity Reduction Factors for Australian Standards AS3600 and AS5100
Capacity reduction factors (?) for flexure, shear and axial loadings are derived for reinforced and prestressed concrete structures based on a reliability-based calibration of the Australian Concrete Structures Standard AS3600. The structural…
Compressive Stress in Segmental Concrete Bridges and High Strength Concrete in New Codes
The current bridge design code, AS5100.5-2004, adopts concrete strength grades between 25MPa and 65MPa. The upper limit of 65MPa was an increase from 50MPa in the Austroads Bridge Design Code, 1992. Before that, the NAASRA Bridge Design…
Reinforced Concrete for the Construction Stage of an Incrementally Launched Bridge
This article discusses the 375m long incrementally launched bridges over the Usuthu River using reinforced concrete, with no pre-stressing, to carry the construction stage loads.
Utilizing Compressible Inclusions and Cement Stabilised Sand for Integral Bridges
Bridges are designed to function for 100 years but often the costs of maintenance are very significant. Bearings and expansion joints which affect the performance of a bridge are mainly the source of maintenance cost. In this case, an integral…
Structural and Risk Assessment of Steel and Concrete Bridges using Inservice Dynamic Response
Mainmark are introducing the STRAAM system of full scale structural integrity assessment and continuous monitoring for Bridges into Australia and New Zealand. Advances in measuring extremely low amplitude vibrations combined with methods for…
Ambitions, Durability Risks and Asset Protection: Literature Review and Learning from Relevant Cases of Existing Bridge Structures
All reinforced concrete structures deteriorate over time. Corrosion of reinforcement is a major challenge to the durability of concrete structures. Corrosion in certain environments, such as marine, can compromise the durability of concrete and…
Improving Corrosion Resistance of Reinforced Concrete Structures Using Carbon Fibre Reinforced Polymer
Corrosion of steel is regarded as one of the most important issues for the durability of reinforced concrete (RC) structures, as corrosion can induce the serviceability decrease, bond strength dropping, steel properties reduction, and longitudinal…
Chloride Ingress and Steel Corrosion in Slag and Fly Ash Blended Geopolymer Concrete
Alkali activated binders (geopolymer) is an emerging technology to produce concrete without the use of any Ordinary Portland Cement (OPC) by alkali activation of alumino-silicate source materials such as fly ash and/or slag. Limited knowledge on…