Development of Fibre Reinforced Autoclaved Aerated Concrete Products. The construction industry is one of the world's largest consumers of raw materials and it is widely accepted that current material usage trends are unsustainable. Development of new more efficient construction materials is paramount to overcoming this. This novel research will use advanced high strength glass and carbon fibres and polymer resins to improve the structural behaviour, versatility and economic viability of a natio ....Development of Fibre Reinforced Autoclaved Aerated Concrete Products. The construction industry is one of the world's largest consumers of raw materials and it is widely accepted that current material usage trends are unsustainable. Development of new more efficient construction materials is paramount to overcoming this. This novel research will use advanced high strength glass and carbon fibres and polymer resins to improve the structural behaviour, versatility and economic viability of a nationally significant construction material known as Autoclaved Aerated Concrete. The material technologies developed by this research will lead to more efficient material use, a more sustainable materials solution and the potential to export the technology worldwide.Read moreRead less
Fuzzy finite element analysis of smart structures using concepts of optimization. The major aim of this research is to develop an innovative approach using fuzzy finite element method for the analysis and design of smart control systems for civil engineering structures subjected to vibrations due to earthquakes. The significance of this project is the proposal to combine, for the first time, techniques such as finite element, fuzzy logic and optimization in a unified manner. The final result wil ....Fuzzy finite element analysis of smart structures using concepts of optimization. The major aim of this research is to develop an innovative approach using fuzzy finite element method for the analysis and design of smart control systems for civil engineering structures subjected to vibrations due to earthquakes. The significance of this project is the proposal to combine, for the first time, techniques such as finite element, fuzzy logic and optimization in a unified manner. The final result will produce an efficient design tool for a structural system integrated with smart sensors/actuators for vibration control.Read moreRead less
Risk assessment modelling for corrosion affected concrete infrastructure. Aging and deterioration of physical infrastructure is a global problem that has caused widespread premature structural failures and significantly reduced its designed service life. This is an increasing problem also for Australia. For reinforced concrete infrastructure, the corrosion of the reinforcing steel within the surrounding concrete is the most significant factor. The aim of the project is to improve understanding o ....Risk assessment modelling for corrosion affected concrete infrastructure. Aging and deterioration of physical infrastructure is a global problem that has caused widespread premature structural failures and significantly reduced its designed service life. This is an increasing problem also for Australia. For reinforced concrete infrastructure, the corrosion of the reinforcing steel within the surrounding concrete is the most significant factor. The aim of the project is to improve understanding of the factors that influence corrosion mechanics in marine environments, to re-examine corrosion process in practical concrete structures and to develop a model for corrosion to enable prediction of structural deterioration and improved risk assessment.Read moreRead less
Behaviour and design of concrete-filled stainless steel tubular columns at ambient and elevated temperatures. Stainless steel is recognised as an advanced construction material for its merits of corrosion resistance, attractive appearance and ease of maintenance. It has enormous potential for use in steel-concrete composite construction, which will provide the structural engineering community with greater choice in terms of aesthetics, constructability, cost and sustainability. The research put ....Behaviour and design of concrete-filled stainless steel tubular columns at ambient and elevated temperatures. Stainless steel is recognised as an advanced construction material for its merits of corrosion resistance, attractive appearance and ease of maintenance. It has enormous potential for use in steel-concrete composite construction, which will provide the structural engineering community with greater choice in terms of aesthetics, constructability, cost and sustainability. The research put forward in this proposal will promote the better use of stainless steel in Australia's building, bridge and offshore infrastructure, thereby providing significant socio-economic benefits to Australia. Moreover it will greatly increase Australia's infrastructure maintenance capability.Read moreRead less
Anchorage of reinforcement in concrete structures subjected to loading and environmental extremes. The consequences of collapse of a reinforced concrete building are severe both in terms of cost and human lives. When subjected to extreme events, such as earthquake, blast, accidental impact or other overloads, a concrete structure should deform excessively, but not collapse, i.e. it must be robust. Robustness requires that the steel reinforcement is ductile and that it is adequately anchored in t ....Anchorage of reinforcement in concrete structures subjected to loading and environmental extremes. The consequences of collapse of a reinforced concrete building are severe both in terms of cost and human lives. When subjected to extreme events, such as earthquake, blast, accidental impact or other overloads, a concrete structure should deform excessively, but not collapse, i.e. it must be robust. Robustness requires that the steel reinforcement is ductile and that it is adequately anchored in the concrete. When a collapse does occur, it is often due to inadequate anchorage of the steel bars. This project will re-assess the anchorage requirements for reinforcement in concrete structures and provide reliable guidance to the construction industry. The project will lead directly to improvements in the safety and reliability of structures.Read moreRead less
FRACTURE OF STEEL FIBRE-REINFORCED CONCRETE: MODES I & II. In 2000-2001 Australia spent 17.5 billon dollars on heavy engineering infrastructure development (3% of its gross domestic product). As this infrastructure ages costs of repairs and maintenance magnifies. Conventional structural concrete can significantly deteriorate with time requiring regular and often costly maintenance. This research goes to the development of a class of "super" concretes with very high strengths and with excellent d ....FRACTURE OF STEEL FIBRE-REINFORCED CONCRETE: MODES I & II. In 2000-2001 Australia spent 17.5 billon dollars on heavy engineering infrastructure development (3% of its gross domestic product). As this infrastructure ages costs of repairs and maintenance magnifies. Conventional structural concrete can significantly deteriorate with time requiring regular and often costly maintenance. This research goes to the development of a class of "super" concretes with very high strengths and with excellent durability properties. With improved understanding of fracture and fracture processes with these materials, new models can be developed to represent the behaviour of structural elements fabricated with this "super" class of concretes and speed their implementation into Australian construction practice.Read moreRead less
Barriers for cost - effective rock fall hazard mitigation. Rock fall barriers are used throughout Australia to protect its extensive road and rail networks. These networks are vital links in the nation's infrastructure and underpin its economic prosperity and development. There are thousands of cuttings on Australia' transport networks, many of which have the potential to be affected by rock falls. These events can take lives and severely disrupt the performance of our transport infrastructure. ....Barriers for cost - effective rock fall hazard mitigation. Rock fall barriers are used throughout Australia to protect its extensive road and rail networks. These networks are vital links in the nation's infrastructure and underpin its economic prosperity and development. There are thousands of cuttings on Australia' transport networks, many of which have the potential to be affected by rock falls. These events can take lives and severely disrupt the performance of our transport infrastructure. This project will develop new cost-effective methods for designing against rock fall events using a combination of advanced testing and computer modelling.Read moreRead less
Influence of tunnelling on pile foundations. The effects of tunnel construction on the behaviour of existing pile foundations will be investigated. In particular, models will be developed to predict the influence of tunnel excavation on the bearing capacity, average settlement, differential settlement and tilt of pile groups and the loads and bending moments induced in the piles of the group and the pile cap. These models will allow rational assessment of the effects on buildings undermined by ....Influence of tunnelling on pile foundations. The effects of tunnel construction on the behaviour of existing pile foundations will be investigated. In particular, models will be developed to predict the influence of tunnel excavation on the bearing capacity, average settlement, differential settlement and tilt of pile groups and the loads and bending moments induced in the piles of the group and the pile cap. These models will allow rational assessment of the effects on buildings undermined by tunnels. This work is significant and timely because of the growing trend to place transport infrastructure underground in many cities of the world.Read moreRead less
A Re-evaluation of the Safety and Reliability Indices for Reinforced Concrete Structures. The use of concrete in Australian building structures exceeds 13 million tonnes per year and its impact on the environment is considerable. With 5% of total CO2 emissions coming from cement production, one of the main components of concrete, it is imperative that Australian standards produce efficient design solutions. Preliminary modelling shows that a minimum 5% efficiency gain is possible through a re-ev ....A Re-evaluation of the Safety and Reliability Indices for Reinforced Concrete Structures. The use of concrete in Australian building structures exceeds 13 million tonnes per year and its impact on the environment is considerable. With 5% of total CO2 emissions coming from cement production, one of the main components of concrete, it is imperative that Australian standards produce efficient design solutions. Preliminary modelling shows that a minimum 5% efficiency gain is possible through a re-evaluation of reliability indices with contemporary construction practices and materials, giving an immediate 180,000 tonne per annum reduction in carbon emissions. Added to this are savings through reduced transport and reduced water, sand and aggregate consumption, the potential saving on the environment, and economy, are considerable.Read moreRead less
Modelling of Damage Progression and its Effects on the Expected Safety and Satisfactory Performance of Existing Reinforced Concrete Infrastructure. The extent of reinforcement corrosion in existing infrastructure will influence demolish/repair decisions, maintenance strategies and hence the frequency, timing, extent and required level of efficiency and effectiveness of repairs. The project will provide improved evaluation of existing structural systems by considering improved deterioration model ....Modelling of Damage Progression and its Effects on the Expected Safety and Satisfactory Performance of Existing Reinforced Concrete Infrastructure. The extent of reinforcement corrosion in existing infrastructure will influence demolish/repair decisions, maintenance strategies and hence the frequency, timing, extent and required level of efficiency and effectiveness of repairs. The project will provide improved evaluation of existing structural systems by considering improved deterioration modelling and predictions of safety and satisfactory performance. The potential economic benefits of greater precision in infrastructure replacement or repair strategies and of the risks involved are large given that the size of Australia's infrastructure stock is valued at over $400 billion and its maintenance involves considerable costs.Read moreRead less