- Infrastructure Engineering - Research Publications
Infrastructure Engineering - Research Publications
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ItemNo Preview AvailableAutomating property valuation at the macro scale of suburban level: A multi-step method based on spatial imputation techniques, machine learning and deep learningJafary, P ; Shojaei, D ; Rajabifard, A ; Ngo, T (Elsevier BV, 2024-06-01)
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ItemNo Preview AvailableNumerical investigation on the behaviour of concrete barriers subjected to vehicle impacts using modified K&C material modelKarunarathna, S ; Linforth, S ; Kashani, A ; Liu, X ; Ngo, T (Elsevier BV, 2024-06-01)
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ItemNo Preview AvailableNonlinear analysis and design of high-strength concrete filled steel tubular columns under nonuniform firesLama, L ; Gernay, T ; Thai, HT ; Ngo, T ; Uy, B (Elsevier BV, 2024-06-01)
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ItemNo Preview AvailableIncorporation of reduced graphene oxide in waste-based concrete including lead smelter slag and recycled coarse aggregateValizadeh Kiamahalleh, M ; Gholampour, A ; Tang, Y ; Ngo, TD (Elsevier BV, 2024-07-01)
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ItemNo Preview AvailableNovel hierarchical bioinspired cellular structures with enhanced energy absorption under uniaxial compressionKhoa, ND ; Bohara, RP ; Ghazlan, A ; Thai, T ; Ngo, T (Elsevier BV, 2024-04-01)
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ItemNo Preview AvailableA framework for low-carbon mix design of recycled aggregate concrete with supplementary cementitious materials using machine learning and optimization algorithmsGolafshani, EM ; Behnood, A ; Kim, T ; Ngo, T ; Kashani, A (Elsevier BV, 2024-03-01)
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ItemAssessing the opportunity for producing hemp-based insulation in the Australian marketChristopher, P ; Aye, L ; Nematollahi, N ; Ngo, T (EJSE International, 2024-04-29)By-products (wastes or residues) of renewable materials have the potential to be manufactured into higher value fibre insulation products for the Australian market. Currently, such products have been imported for servicing the Australian market. This presents a potential opportunity to divert considerable quantities of waste from landfill and produce a high performance, locally made, low carbon, natural fibre insulation product for the Australian domestic and commercial building industry. This article assesses the hemp-based bulk insulations available in the Australian market.
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ItemNo Preview AvailableComparative life cycle assessment of renewable energy storage systems for net-zero buildings with varying self-sufficient ratiosLe, ST ; Nguyen, TN ; Bui, D-K ; Teodosio, B ; Ngo, TD (PERGAMON-ELSEVIER SCIENCE LTD, 2024-03-01)
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ItemNo Preview AvailableModelling and Multi-Objective Optimisation of Finger Joints: Improving Flexural Performance and Minimising Wood WasteLe, ST ; Nguyen, TN ; Bui, D-K ; Ha, QP ; Ngo, TD (MDPI, 2023-04-29)The wood industry faces the dual requirements of improving the quality of timber products and minimising waste during the manufacturing process. The finger joint, which is an end-to-end joining method for timber boards, is one of the most important aspects of engineering wood products. This study presents a numerical and optimisation investigation of the effects of finger-joint design parameters on the flexural behaviour of finger-jointed timber beams. A numerical model based on advanced three-dimensional finite element analysis was developed to model the behaviour of finger-jointed beams. Using the validated finite element (FE) model and automated parameterisation, a parametric study was conducted to assess the impact of each design parameter of the finger joint, including finger length, tip thickness, and the number of finger joints. The results indicate that the number of fingers and finger length significantly influence the maximum load capacity, while the tip thickness has a marginal effect on performance. This study identifies a design threshold of five fingers and a 14 mm finger length for achieving efficient, high-performance finger-joint designs. In addition, the multi-objective modified firefly algorithm (MOMFA) was proposed to maximise the finger joint resistance while simultaneously minimising the material waste. The optimisation shows that there will be a significant amount of wood waste when using traditional single-objective optimisation that only focuses on structural performance. In contrast, the proposed method achieves comparable load capacity while significantly reducing waste (up to 53.31%) during the joining process. The automated finite element modelling framework and holistic optimisation developed in this study can be used to design and optimise engineering wood products for construction applications.
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ItemNo Preview AvailableADVANCED ANALYSIS OF STEEL‐CONCRETE COMPOSITE BUILDINGSTran, H ; Thai, HT ; Ngo, T ; Uy, B ; Li, D ; Mo, J (Wiley, 2023-02)Abstract This paper presents a nonlinear simulation method for composite framing systems constituted from concrete‐filled steel tubular columns (CFST) and composite beam systems. A force‐based fibre beam‐column element in OpenSees was adopted. This element was capable of accurately capturing the local buckling of steel and the confining effect of concrete using the modified stress‐strain relationships of the steel and concrete fibres. A source code for the connection element was also developed in OpenSees to capture the semi‐rigid behaviour of the beam‐to‐column connections of the composite buildings. Through the verification with numerous experiments, the model has shown its capability of accurately simulating composite frames with simplicity and less computational cost. An extensive parametric study was conducted to examine the effect of the bracing systems and the rigidity of the connections on the behaviour and instability of the whole composite buildings.