Topological Optimization of Load-carrying Structural Systems with Repetitive Geometrical Patterns. Periodic structures are increasingly used in the design of the structural systems or sub-systems of buildings, bridges, aircraft, motor vehicles etc. The duplication of identical or similar modules significantly reduces the production cost and greatly simplifies the assembly process. In many cases periodic structures are also selected for their distinctive aesthetic appeal. The proposed research wi ....Topological Optimization of Load-carrying Structural Systems with Repetitive Geometrical Patterns. Periodic structures are increasingly used in the design of the structural systems or sub-systems of buildings, bridges, aircraft, motor vehicles etc. The duplication of identical or similar modules significantly reduces the production cost and greatly simplifies the assembly process. In many cases periodic structures are also selected for their distinctive aesthetic appeal. The proposed research will develop advanced techniques for the optimal design of such structures. The new design tool will enable Australian engineers and architects to create innovative and efficient structural systems for a wide range of applications and to become involved in high profile international projects. Read moreRead less
Optimisation of Building Structures Considering Wind Loading. Wind loading is a dominant factor that should be carefully considered and resourcefully exploited in the design of building structures. The ever-taller buildings proposed around the world have presented a major challenge and opportunity in the pursuit of new techniques and materials. The proposed research will improve the competitiveness and productivity of the Australian building design industry by establishing a cutting-edge compute ....Optimisation of Building Structures Considering Wind Loading. Wind loading is a dominant factor that should be carefully considered and resourcefully exploited in the design of building structures. The ever-taller buildings proposed around the world have presented a major challenge and opportunity in the pursuit of new techniques and materials. The proposed research will improve the competitiveness and productivity of the Australian building design industry by establishing a cutting-edge computer-automated design tool for creating innovative building systems that can resist wind loading effectively and efficiently. The developed technology will result in significant enhancement of the performance and safety of buildings, and substantial reduction of construction materials and costs.Read moreRead less
Behaviour of anchors in post-tensioned high-strength concrete slabs. Recently High-strength concrete(HSC) was introduced to minimise the time required for stressing the tendons in post-tensioned construction(PC), which is the preferred construction method for long span slabs in Australia and overseas. Although HSC is an obvious choice for this application, many failures have been observed in the live and dead end anchors of PC slabs and there is in fact very little understanding of relationships ....Behaviour of anchors in post-tensioned high-strength concrete slabs. Recently High-strength concrete(HSC) was introduced to minimise the time required for stressing the tendons in post-tensioned construction(PC), which is the preferred construction method for long span slabs in Australia and overseas. Although HSC is an obvious choice for this application, many failures have been observed in the live and dead end anchors of PC slabs and there is in fact very little understanding of relationships between specified concrete properties and performance. Through a systematic experimental and theoretical study, the behaviour of anchor regions of these slabs, including the reasons for failure will be investigated.Read moreRead less
Seismic performance of concrete beam-slab-column systems constructed with a re-useable sheet metal formwork system. When designing for earthquake induced loading it is very important to know the ductility and any other inherent deficiencies in structural systems under lateral deflections. The main purpose of this application is to investigate the seismic performance of an efficient beam-slab-column system constructed with a re-useable sheet metal formwork system, Corcon, which is becoming popula ....Seismic performance of concrete beam-slab-column systems constructed with a re-useable sheet metal formwork system. When designing for earthquake induced loading it is very important to know the ductility and any other inherent deficiencies in structural systems under lateral deflections. The main purpose of this application is to investigate the seismic performance of an efficient beam-slab-column system constructed with a re-useable sheet metal formwork system, Corcon, which is becoming popular in Australia and overseas. The proposed research will ultimately lead to revised design guidelines for these systems, suitable for local and overseas practice where different levels of seismicity occur.
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Investigate control of in-situ termite and decay protection and control using microwave technologies. Australia has a very substantial investment in timber structures for example 11,000 km of timber bridges, railway sleepers, power poles and dwellings. Timber losses each year due to fungal, termite and other insect degradation, is very significant. The use of organochlorine compounds for ground poisoning and remedial treatment has been discontinued due to environmental, health and safety concern ....Investigate control of in-situ termite and decay protection and control using microwave technologies. Australia has a very substantial investment in timber structures for example 11,000 km of timber bridges, railway sleepers, power poles and dwellings. Timber losses each year due to fungal, termite and other insect degradation, is very significant. The use of organochlorine compounds for ground poisoning and remedial treatment has been discontinued due to environmental, health and safety concerns. Less toxic chemicals are less effective, require more regular inspection and don't address fundamental concerns associated with environment issues. This project will provide the community a cheap automated alarm system indicating when remedial treatment is required and a non-chemical technology for sterilising infected structures.Read moreRead less
Failure Mechanisms of Roof Cladding under Fluctuating Wind Loads. Wind damage to low-rise buildings cause disruption to communities and result in economic losses. Improvements to the most vulnerable part (i.e. roof) will therefore have national benefits and associated economic benefits. Currently, roofing systems used in cyclonic areas are evaluated to DABM in the Northern Territory and to TR440 elsewhere, requiring the same product be tested under two different (and unsatisfactory) specificat ....Failure Mechanisms of Roof Cladding under Fluctuating Wind Loads. Wind damage to low-rise buildings cause disruption to communities and result in economic losses. Improvements to the most vulnerable part (i.e. roof) will therefore have national benefits and associated economic benefits. Currently, roofing systems used in cyclonic areas are evaluated to DABM in the Northern Territory and to TR440 elsewhere, requiring the same product be tested under two different (and unsatisfactory) specifications. This is due to the limited understanding of wind-induced fatigue of cladding. This project will provide the framework for understanding and minimizing cladding fatigue. A realistic single test will also reduce cost and result in better design systems.Read moreRead less