Abstract
This study investigated the performances of a new type of precast beam-column joint subjected to earthquake and impact loads. For sustainability and durability considerations, new materials such as corrosion-resistant fibre reinforced polymer (FRP) bolts and reinforcements, fibre reinforced concrete (FRC), and geopolymer concrete (GPC) were used to construct the joint. To examine the resilience, durability, sustainability, and multi-hazard resistance capacities, both cyclic and pendulum impact tests were carried out. The experimental results demonstrated that the proposed precast joints had the comparable or even better performances as compared with the traditional monolithic joints under cyclic and impact loads. Numerical simulations using ABAQUS were also adopted to determine the optimal values of the concrete-end-plate (CEP) thickness for the proposed dry joints and to further quantify other response parameters which could not be obtained during the test, e.g., stress distribution, energy absorption, and stress contours. Discussion on the influences of various parameters on joint performances under different loading conditions was also presented in this study.
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The authors would like to acknowledge the financial support from the Australian Research Council Laureate Fellowships FL180100196, and staff at the Civil Engineering laboratory, Curtin University, for their technical support during the experimental tests.
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Hao, H., Ngo, T.T., Pham, T.M. et al. Performances of a new sustainable and durable dry beam-column joints under cyclic and impact loads. Sci. China Technol. Sci. 66, 282–300 (2023). https://doi.org/10.1007/s11431-022-2170-4
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DOI: https://doi.org/10.1007/s11431-022-2170-4