Performance of safety critical anchors in early age concrete with SCM. This project aims to examine the performance of anchors in a range of cements, to contribute to new safety and building guidelines. Demands for faster construction cycles and increased productivity require anchors for lifting and joining concrete elements to be installed and loaded in early age concrete. Yet, best practice for evaluation of anchors is based on mature concrete. There is also increasing use of supplementary cem ....Performance of safety critical anchors in early age concrete with SCM. This project aims to examine the performance of anchors in a range of cements, to contribute to new safety and building guidelines. Demands for faster construction cycles and increased productivity require anchors for lifting and joining concrete elements to be installed and loaded in early age concrete. Yet, best practice for evaluation of anchors is based on mature concrete. There is also increasing use of supplementary cementitious materials with unknown effects on anchors. This project aims to address this construction industry challenge. The project plans to study experimentally and analytically the effect of early age creep on anchor installation and the factors affecting the slip behaviour and ultimate performance of cast-in and post-installed mechanical anchors in concretes. It is intended that these studies will then inform new design guidelines.Read moreRead less
Seismic performance of precast concrete buildings for lower seismic regions. This project aims to develop a displacement-based method of assessing precast concrete buildings in regions of lower seismicity for risk of collapse and seismic performance. The project will investigate the system behaviour and vulnerability of buildings laterally supported by precast concrete geometric walls, which are currently poorly understood but dominate Australian construction. The modelling produced is expected ....Seismic performance of precast concrete buildings for lower seismic regions. This project aims to develop a displacement-based method of assessing precast concrete buildings in regions of lower seismicity for risk of collapse and seismic performance. The project will investigate the system behaviour and vulnerability of buildings laterally supported by precast concrete geometric walls, which are currently poorly understood but dominate Australian construction. The modelling produced is expected to allow such buildings to be simply checked for seismic compliance using displacement principles, rather than the more complex force based methods with direct benefits for building costs and community safety.Read moreRead less
Time Dependent Behaviour of Fibre Reinforced Concrete Structures. . The project aims to quantify the initial and long-term cracking and deformation of fibre reinforced concrete structures such as tunnel linings and slabs under sustained in-service loads and conditions. Concrete structures with and without conventional steel reinforcement and containing either steel or polypropylene fibres mixed in the concrete will be tested experimentally and modelled analytically and numerically. Expected outc ....Time Dependent Behaviour of Fibre Reinforced Concrete Structures. . The project aims to quantify the initial and long-term cracking and deformation of fibre reinforced concrete structures such as tunnel linings and slabs under sustained in-service loads and conditions. Concrete structures with and without conventional steel reinforcement and containing either steel or polypropylene fibres mixed in the concrete will be tested experimentally and modelled analytically and numerically. Expected outcomes are benchmark experimental data on structural behaviour under sustained loads, development of reliable simulation models and robust design procedures for the control of time-dependent cracking and deformation in fibre reinforced concrete, with reduced maintenance costs and more sustainable concrete structures.Read moreRead less
Progressive collapse resistance of reinforced concrete framed structures with membrane action. The past ten years, or so, has seen increasing emphasis on extreme event scenarios such as blast, impact and earthquake and more regular and intense cyclonic wind events. This study investigates the reserve of strength in reinforced concrete framed structures to withstand such forces.
Discovery Early Career Researcher Award - Grant ID: DE150101703
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
Computational framework for fracture in concrete structures. Fracture in concrete is a critical issue for serviceability and minimising the risk of structural collapse. The project aims to develop a technology for the robust and detailed prediction of how concrete structures behave during fracture. The scientific framework will build on a novel theory for 3D fracture and a new computational approach for tackling the highly non-linear behaviour of damage propagation. These advances aim to produce ....Computational framework for fracture in concrete structures. Fracture in concrete is a critical issue for serviceability and minimising the risk of structural collapse. The project aims to develop a technology for the robust and detailed prediction of how concrete structures behave during fracture. The scientific framework will build on a novel theory for 3D fracture and a new computational approach for tackling the highly non-linear behaviour of damage propagation. These advances aim to produce a platform for designers to create and test new designs and technologies for current and new materials. The project aims to produce outcomes that will advantage Australian companies in the international market for large construction projects, where competition is intense and innovation is an important part of increasing market share.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE170100165
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
Stopping post-tensioned anchorage zone concrete failures. This project aims to design post-tensioning anchorage zones for early age concrete. Post-tensioning of concrete is a common construction method in Australia and worldwide. Despite careful material selection, many unexplained catastrophic failures happen at anchorage zones. Current empirical models in the standard design guidelines are outdated and inadequate, because they are based on the properties of hardened concrete. A more reliable d ....Stopping post-tensioned anchorage zone concrete failures. This project aims to design post-tensioning anchorage zones for early age concrete. Post-tensioning of concrete is a common construction method in Australia and worldwide. Despite careful material selection, many unexplained catastrophic failures happen at anchorage zones. Current empirical models in the standard design guidelines are outdated and inadequate, because they are based on the properties of hardened concrete. A more reliable design approach is expected to benefit the construction and consulting industries, encourage the adoption of high-performance and sustainable materials, improve community safety, and reduce the environmental effect.Read moreRead less
Development of ultra-high performance concrete columns against blasts. This project aims to develop cost-effective formulae for ultra-high performance fibre reinforced concrete (UHPFRC) material with superior strength, ductility and durability to replace conventional concrete in critical infrastructures. In recent years, increasing threat from terrorism activities highlights the need to develop advanced building materials to protect against disastrous blasts; UHPFRC is an ideal option in structu ....Development of ultra-high performance concrete columns against blasts. This project aims to develop cost-effective formulae for ultra-high performance fibre reinforced concrete (UHPFRC) material with superior strength, ductility and durability to replace conventional concrete in critical infrastructures. In recent years, increasing threat from terrorism activities highlights the need to develop advanced building materials to protect against disastrous blasts; UHPFRC is an ideal option in structural protective design. This project plans to develop a mixed design approach for cost-effective UHPFRC material. It also plans to conduct blast tests and numerical investigations study blast resistance of UHPFRC columns and to develop analytical approaches and design methods for the application of such columns in critical infrastructure.Read moreRead less
Fire engineering of prefabricated structural systems of modular buildings. With the speed and cost benefits, modular construction is considered a game-changing solution in response to pandemics and natural disasters, and tackling the affordable housing crisis on a large scale. However, its uptake has been hindered due to recent fire incidents of modular buildings. This project aims to develop novel fire experiments and advanced modelling techniques to evaluate the fire performance of modular bui ....Fire engineering of prefabricated structural systems of modular buildings. With the speed and cost benefits, modular construction is considered a game-changing solution in response to pandemics and natural disasters, and tackling the affordable housing crisis on a large scale. However, its uptake has been hindered due to recent fire incidents of modular buildings. This project aims to develop novel fire experiments and advanced modelling techniques to evaluate the fire performance of modular buildings. Computational tools and fire safety design guidelines will also be developed to enable modular buildings to be built safer and more economically. This project will promote the widespread adoption of modular buildings to benefit end-users and the wider society, especially the housing sector and low-income households.Read moreRead less
Nonlinear long-term behaviour and analysis of high strength concrete panels. This project investigates the nonlinear long-term response of high-strength concrete panels. As these panels find widespread use in many civil and industrial engineering applications, the outcomes of this project will enhance the understanding of their long-term behaviour and will provide a theoretical basis for their analysis and design.
Development of next generation fire-resistant composite columns. This project aims to develop a new generation of concrete-filled steel tubular (CFST) columns free from reinforcement by using fly ash-based fire-resistant concrete. In Australia, existing CFST columns use a large amount of internal reinforcement to maintain the structural integrity under fire attack. Through the generation of CFST columns with superior fire resistance rating and associated design rules to enable innovative and saf ....Development of next generation fire-resistant composite columns. This project aims to develop a new generation of concrete-filled steel tubular (CFST) columns free from reinforcement by using fly ash-based fire-resistant concrete. In Australia, existing CFST columns use a large amount of internal reinforcement to maintain the structural integrity under fire attack. Through the generation of CFST columns with superior fire resistance rating and associated design rules to enable innovative and safe applications of these columns in the construction of resilient and sustainable infrastructure, the project will enable expansion of the domestic and worldwide market for Australian producers of geo-polymer concrete and fly ash aggregates.Read moreRead less