Infrastructure Engineering - Research Publications

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    Internet of Things for Structural Health Monitoring
    SRIDHARA RAO, A ; Gubbi, J ; Ngo, T ; Mendis, P ; Palaniswami, M ; Epaarachchi, A ; Chanaka Kahandawa, G (CRC Press, 2016-05)
    The Internet revolution led to the interconnection between people at an unprecedented scale and pace. The ability of the sensor networks to send data over the Internet further enhanced the scope and usage of the sensor networks. The Internet uses unique address to identify the devices connected to the network. Structural Health Monitoring (SHM) implies monitoring of the state of the structures through sensor networks in an online mode and are pertinent to aircraft and buildings. SHM can be further divided into two categories: global health monitoring and local health monitoring. Continuous online SHM would be an ideal solution. SHM is performed by using acoustic sensors, ultrasonic sensors, strain gauges, optical fibers, and so on. Video cameras can also be used for SHM. SHM can be achieved in real-time and rich analytics. With the advent of smart sensors—sensors with programmable microprocessors, memory, and processing—has reduced load of central data processing, communication overhead while proving continuous SHM status.
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    Foreword
    Duffield, C ; Hui, FKP ; Wilson, S ; Duffield, C ; Hui, FKP ; Wilson, S (Open Book Publishers, 2019-11-01)
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    Life-cycle performance of a bridge subjected to multiple heavy vehicle impacts
    Maizuar, ; Zhang, L ; Thompson, R ; Fithra, H (Emerald Publishing Limited, 2018-01-01)
    Purpose - The purpose of this study is to develop a numerical framework to predict the time-dependent probability of failure of a bridge subjected to multiple vehicle impacts. Specially, this study focuses on investigating the inter-relationship between changes in life-cycle parameters (e.g., damage size caused by vehicle impact, loss of initial structural capacity, and threshold intervention) and bridges probability of failure. Design/Methodology/Approach - The numerical procedure using MATLAB program is developed to compute the probability failure of a bridge. First, the importance and characteristics of life-cycle analysis is described. Then, model for damage accumulation and life cycle as a result of heavy vehicle impacts is discussed. Finally, the probability of failure of a bridge subjected to vehicle impacts as a result of change in life-cycle parameters is presented. Findings - The results of study show that damage size caused by both vehicle impacts and loss of initial structural capacity have a great impact on the long-term safety of bridges. In addition, the probability of failure of a bridge under different threshold limits indicates that the structural intervention (e.g., repair or maintenance) should be undertaken to extend the service life of a bridge. Research Limitations/Implications - The damage sizes caused by heavy vehicle impacts are based on simple assumptions. It is suggested that there would be a further study to estimate the magnitude of bridge damage as a result of vehicle impact using the full-scale impact test or computational simulation. Practical Implications - This will allow much better predictions for residual life of bridges which could potentially be used to support decisions on health and maintenance of bridges. Originality/Value - The life-cycle performance for assessing the time-dependent probability of failure of bridges subjected to multiple vehicle impact has not been fully discussed so far.
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    Potential Infrastructure Enhancements for Ports and Cities: Conclusions, Future Research and Policy Concepts
    Duffield, C ; Wahyuni, S ; Parikesit, D ; Hui, K ; Wilson, S ; Duffield, C ; Hui, K ; Wilson, S (Open Book Publishers, 2019)
    The final chapter of this research monograph draws together key points from each of the chapters. It summarises key findings from the research and poses questions that would benefit from future/further research.
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    Initial Investigation into the Effectiveness of Australian Ports’ Governance and Management Structures
    Al-Daghlas, H ; Hui, K ; Duffield, C ; Duffield, C ; Hui, K ; Wilson, S (Open Book Publishers, 2019)
    The ninth chapter considers effectiveness of port governance and management structures in Australia. It briefly reviews Australian port reform, before considering private, local and international investment in Australia; the make-up of investors in major city ports in Australia; and the need to carefully assess foreign investment in critical infrastructure. Asset recycling in Australia is discussed. Factors identified from focus group discussions (in Australia) with key port stakeholders that help improve or act as obstacles to governance/policy, and that help improve or hinder management structures in ports, are also presented.
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    Revealing Indonesian Port Competitiveness: Challenge and Performance
    Wahyuni, S ; Taufik, AA ; Hui, K ; Duffield, C ; Hui, K ; Wilson, S (Open Book Publishers, 2019)
    The eighth chapter considers Indonesian port competitiveness. It notes that the Indonesian government is in the midst of planning broad policies and strategies concerning maritime and port development and has recently provided a reform package to improve logistics in the country to improve the supply chain. Results from focus group meetings, a detailed questionnaire and in-depth interviews with key port industry stakeholders and financial bodies in Indonesia are presented. Problematic factors contributing to port problems were identified from the perspective of research participants. The chapter identifies important aspects of port competitiveness: government support, business support and operational performance. Despite general support towards the government policies in facilitating port investment, there seems to be a substantial gap between policy expectation and policy realisation.
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    Comparative Efficiency Analysis of Australian and Indonesian Ports
    Hui, K ; Duffield, C ; Chin, A ; Huang, H ; Duffield, C ; Hui, K ; Wilson, S (Open Book Publishers, 2019)
    A comparative analysis of Australian and Indonesian port efficiency is presented in the sixth chapter. The analysis utilises the Data Envelope Analysis model to quantify and measure the efficiency of ports, focusing on port and container cargoes. Ports included in the benchmarking included major Australian, Indonesian and Chinese international ports. International benchmarking of port facilities provides an opportunity to identify areas for improvement.
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    Funding and Financing Infrastructure: Indonesia and Australia
    Duffield, C ; DUFFIELD, R ; Wilson, S ; Duffield, C ; Hui, K ; Wilson, S (Open Book Publishers, 2019)
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    Infrastructure Planning, Challenges and Risks
    Duffield, C ; DUFFIELD, R ; Wilson, S ; Duffield, C ; Hui, K ; Wilson, S (Open Book Publishers, 2019)
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    Infrastructure Investment in Indonesia - The Economic Context
    Duffield, C ; DUFFIELD, R ; Wilson, S ; Duffield, C ; Hui, K ; Wilson, S (Open Book Publishers, 2019)