ADVANCES IN STEEL-Concrete composite STRUCTURES: australian experiences
Brian Uy 1*
1 School of Civil Engineering, The University of Sydney, Sydney, Australia
Steel-concrete composite structures have been used in a design manner for well over 50 years in both bridges and buildings in Australia. Standards and codes of practice in Australia have existed in this area for well over 40 years, however innovative builders and engineers have often worked well ahead of the curve in applying composite steel-concrete composite techniques using innovative systems and materials. This paper provides a summary of Australian practical experiences in the application of steel-concrete composite structures focusing on bridges, buildings, stadia and transport infrastructure. The paper then highlights important advances in the development of the main materials of concrete and steel and focusses on high performance concrete and steel and the associated issues in applying these new materials for steel-concrete composite forms. A brief summary of advances in composite systems, namely in beams, columns, joints, walls and frames is then provided. A focus on reliability and demountability is then provided which focus on existing and future structures. Codes of practice are also summarised in particular the newly released Australian-New Zealand bridge and building standards, ASNZS5100 Part 6 and ASNZS2327 both released in 2017. The paper then concludes with a brief summary of future and further research in the Australian context.
Australian standards, Bridges, Buildings, Composite structures, Steel structures