Mixed Mode Torsion-Shear-Bending Failure in SFRC Elements . In 2017 and 2018 the Australian Standards for the design of concrete bridges and structures were released; these are some of the first in the world, to include design procedures for steel fibre reinforced concrete (SFRC) in a comprehensive way. While rules have been introduced for shear and bending of SFRC girders, the rules exclude the use fibres to carry torsional moments. This study investigates the torsion-bending-shear interaction ....Mixed Mode Torsion-Shear-Bending Failure in SFRC Elements . In 2017 and 2018 the Australian Standards for the design of concrete bridges and structures were released; these are some of the first in the world, to include design procedures for steel fibre reinforced concrete (SFRC) in a comprehensive way. While rules have been introduced for shear and bending of SFRC girders, the rules exclude the use fibres to carry torsional moments. This study investigates the torsion-bending-shear interaction performance of SFRC members. The study will provide vital data needed for for adoption by engineers and Standards bodies.Read moreRead less
The behaviour and design of composite columns coupling the benefits of high strength steel and high strength concrete for large scale infrastructure. This project will involve the development of a novel structural column system which will be more efficient, robust and require less maintenance than current systems. The outcomes will involve improved design methodologies which will enable large scale infrastructure to be enhanced and will involve the use of materials which improve sustainability.
Measuring and modelling the mechanical response of soils incorporating recycled tyres. Civil engineers use backfill to refill excavated areas around new structures. They have found recently that rubber chips and shredded rubber make excellent backfill when combined with a small percentage of cement to make ‘rubber soil’. The widespread use of rubber soil therefore offers a tremendous opportunity to make use of a serious waste product to achieve important engineering outcomes. However, too little ....Measuring and modelling the mechanical response of soils incorporating recycled tyres. Civil engineers use backfill to refill excavated areas around new structures. They have found recently that rubber chips and shredded rubber make excellent backfill when combined with a small percentage of cement to make ‘rubber soil’. The widespread use of rubber soil therefore offers a tremendous opportunity to make use of a serious waste product to achieve important engineering outcomes. However, too little is known about the technology. This project will model the behaviour of rubber soil in order to introduce it as an environmentally sustainable, cost-effective and technically sound choice of geomaterial for both standard and non-standard geotechnical structures.Read moreRead less
Adaptive Base Isolation using Innovative Magnetorheological Elastomers. Base isolation is of great importance for the safety of infrastructure, such as hospitals, bridges and nuclear power plants. Utilisation of a traditional passive base isolator makes the base isolation system vulnerable and susceptible to unexpected/extreme dynamic loadings, such as earthquakes. This project aims to address this critical issue through the development of a novel adaptive seismic isolator working with an innova ....Adaptive Base Isolation using Innovative Magnetorheological Elastomers. Base isolation is of great importance for the safety of infrastructure, such as hospitals, bridges and nuclear power plants. Utilisation of a traditional passive base isolator makes the base isolation system vulnerable and susceptible to unexpected/extreme dynamic loadings, such as earthquakes. This project aims to address this critical issue through the development of a novel adaptive seismic isolator working with an innovative stiffness softening magnetorheological elastomer (MRE). This research represents a fundamental step towards the understanding of MRE behaviour and is expected to be the breakthrough for the development of a future smart base isolation system.Read moreRead less
Design and Construction Error Mitigation in Infrastructure Projects. Human errors committed during the design and construction process of infrastructure projects increase costs by as much as 25 per cent. The costs associated with such errors would be significantly higher in the event of an engineering failure and loss of life. This research will develop a model that can be used to mitigate errors and improve the performance and safety of infrastructure projects. A reduction in errors will reduce ....Design and Construction Error Mitigation in Infrastructure Projects. Human errors committed during the design and construction process of infrastructure projects increase costs by as much as 25 per cent. The costs associated with such errors would be significantly higher in the event of an engineering failure and loss of life. This research will develop a model that can be used to mitigate errors and improve the performance and safety of infrastructure projects. A reduction in errors will reduce the financial burden placed on taxpayers for cost overruns experienced as well as improve the profitability of organisations. This will lead to greater investment, and contribution to gross domestic product.Read moreRead less
Automatic construction monitoring through semantic information modelling. This project aims to develop computational algorithms and methods for automatic as-built construction monitoring through semantics-based Building Information Modelling (BIM). Construction as–built monitoring is crucial for the cost, time, quality and safety of projects. Methods for generating as-built status are primarily manual. There are gaps in sophistication of automation, and recognition for semantic construction info ....Automatic construction monitoring through semantic information modelling. This project aims to develop computational algorithms and methods for automatic as-built construction monitoring through semantics-based Building Information Modelling (BIM). Construction as–built monitoring is crucial for the cost, time, quality and safety of projects. Methods for generating as-built status are primarily manual. There are gaps in sophistication of automation, and recognition for semantic construction information during the process is low. The project is expected to provide efficient and accurate solutions for as-built construction monitoring.Read moreRead less
Experimental and numerical study of Encapsulated Compaction Grouting (ECG) in a loose fill slope. The proposed project will develop a flexible, cost-effective and environmentally friendly engineering solution (Encapsulated Compaction Grouting or ECG) for improving the performance of loose, soft soils. Important applications of the research include the mitigation of landslides, which pose a major threat to communities and infrastructure worldwide. Small-scale laboratory tests, full-scale field te ....Experimental and numerical study of Encapsulated Compaction Grouting (ECG) in a loose fill slope. The proposed project will develop a flexible, cost-effective and environmentally friendly engineering solution (Encapsulated Compaction Grouting or ECG) for improving the performance of loose, soft soils. Important applications of the research include the mitigation of landslides, which pose a major threat to communities and infrastructure worldwide. Small-scale laboratory tests, full-scale field tests and numerical analyses will be carried out to ensure that the proposed ECG method is an effective and economical engineering solution. The results of this integrated study will provide a valuable tool for engineers who wish to stabilise loose fill slopes or soft grounds.Read moreRead less
Functionally Graded Ultra High Perfomance Concete Structure under Flexure. This project aims to develop a novel multilayer functionally graded concrete structure that is a mixture of normal strength concrete and ultra high performance concrete with the mixing ratio varying in a layer-wise manner, offering a highly cost-effective structural design solution with significantly improved safety and durability over conventional concrete structures. The expected outcomes include the innovative design, ....Functionally Graded Ultra High Perfomance Concete Structure under Flexure. This project aims to develop a novel multilayer functionally graded concrete structure that is a mixture of normal strength concrete and ultra high performance concrete with the mixing ratio varying in a layer-wise manner, offering a highly cost-effective structural design solution with significantly improved safety and durability over conventional concrete structures. The expected outcomes include the innovative design, experimental data on the static and dynamic structural behaviour, development of reliable simulation techniques and optimal design procedures for the proposed structure with greatly reduced material costs. The project will have huge benefits to Australian civil engineering industry and national economy.
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Fibre-Reinforced Timber for Novel Hybrid Folded Thin-Walled Structures. This project proposes novel manufacture and analysis methods for fibre-reinforced polymer (FRP) hybrid sections. FRP composites have gained wide acceptance within the civil engineering community. All-FRP systems typically use thin-walled profiles based on steel sections, but existing manufacturing technologies are unable to optimise material usage. Hybrid systems combine FRP with traditional materials for optimum structural ....Fibre-Reinforced Timber for Novel Hybrid Folded Thin-Walled Structures. This project proposes novel manufacture and analysis methods for fibre-reinforced polymer (FRP) hybrid sections. FRP composites have gained wide acceptance within the civil engineering community. All-FRP systems typically use thin-walled profiles based on steel sections, but existing manufacturing technologies are unable to optimise material usage. Hybrid systems combine FRP with traditional materials for optimum structural performance and so are often more economical than all-FRP systems. This project aims to develop an effective way to analyse, manufacture, and design FRP-based hybrid thin-walled structural members and optimise performance against buckling failure modes. The technology developed in this project would support the development of advanced low-cost FRP structural systems.Read moreRead less
Rotation Capacity of Joints in SFRC Moment Resisting Beams and Frames. In January 2014 the draft Australian Standard for the design of concrete bridges was released; this is the first standard in Australia, and one of the first in the world, to include design procedures for steel fibre reinforced concrete (SFRC) in a comprehensive way. While rules have been introduced for flexure and shear, strict limitations are placed on application where large plastic rotations are expected. This study invest ....Rotation Capacity of Joints in SFRC Moment Resisting Beams and Frames. In January 2014 the draft Australian Standard for the design of concrete bridges was released; this is the first standard in Australia, and one of the first in the world, to include design procedures for steel fibre reinforced concrete (SFRC) in a comprehensive way. While rules have been introduced for flexure and shear, strict limitations are placed on application where large plastic rotations are expected. This study investigates the moment-rotation performance of SFRC beam-column connections containing economical fibre dosages. The study is expected to provide data on the post-ultimate behaviour and robustness of SFRC moment hinges and determine moment-rotation relations for adoption by engineers and Standards bodies.Read moreRead less