Publications

The Howe truss was patented in USA initially in 1840 and again in 1850 and went on to become one of the primary timber truss designs used in North America. The adaptation of the Howe truss in NSW into the two distinct forms known as the “Allan” and…

Great advances have been made in modular expansion joint technology since this most versatile type of joint was invented forty years ago, and the use of such joints, especially on very large bridges, has increased steadily. As a consequence,…

A Consortium of the Welding Technology Institute of Australia (WTIA) members consisting of Australian Rail Track Corporation (ARTC), RailCorp, Roads and Traffic Authority of New South Wales (RTA), and Transport Main Roads (TMR), Queensland has…

The paper summarizes laboratory tests carried out by RTA Bridge Engineering to investigate different factors affecting the reliability of bolted connections for bridge deck expansion joints. The test rig comprised steel plates bolted to a large…

The RTA Bridge Engineering Branch and Asset management Section routinely assess proposals by external developers that involve deep excavations for new infrastructure construction located adjacent to its bridge structures. These excavations have the…

Modular bridge expansion joints (MBEJs) are utilised when the movement range at a bridge expansion gap exceeds around 300 mm, with the largest MBEJ installed to date accommodating a movement range in excess of 2100 mm. Traditionally MBEJs have been…

All the existing bridges require a maintenance regime to enable the structure to sustain the current traffic loads. The defects in the structure can be identified through regular inspections. There should be a defined inspection procedure not to…

This paper deals with an experimental investigation of a new type of composite bridge using fully prefabricated concrete elements, which shortens the construction time and hence reduces production and economic costs.

Fingerplate bridge deck joints used worldwide to span medium to large expansion joint gaps are usually anchored to concrete decks with debonded through-bolts or sleeved bolts with embedded threaded ferrules. The current approach used by Roads and…

One of the hottest discussed topics in the international engineering community at present is sustainability of infrastructure with respect to global warming and climate change. Global warming and climate change could result in frequent extreme…