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Open AccessArticle

Numerically Evaluation of FRP-Strengthened Members under Dynamic Impact Loading

1
School of Civil Engineering, The University of Sydney, Sydney, NSW 2006, Australia
2
Faculty of Built Environment, The University of New South Wales, Sydney, NSW 2052, Australia
*
Author to whom correspondence should be addressed.
Buildings 2021, 11(1), 14; https://doi.org/10.3390/buildings11010014
Received: 9 December 2020 / Revised: 21 December 2020 / Accepted: 22 December 2020 / Published: 31 December 2020
Reinforced concrete (RC) members in critical structures, such as bridge piers, high-rise buildings, and offshore facilities, are vulnerable to impact loads throughout their service life. For example, vehicle collisions, accidental loading, or unpredicted attacks could occur. The numerical models presented in this paper are shown to adequately replicate the impact behaviour and damage process of fibre-reinforced polymer (FRP)-strengthened concrete-filled steel tube (CFST) columns and Reinforced Concrete slabs. Validated models are developed using Abaqus/Explicit by reproducing the results obtained from experimental testing on bare CFST and RC slab members. Parameters relating to the FRP and material components are investigated to determine the influence on structural behaviour. The innovative method of using the dissipated energy approach for structural evaluation provides an assessment of the effective use of FRP and material properties to enhance the dynamic response. The outcome of the evaluation, including the geometrical, material, and contact properties modelling, shows that there is an agreement between the numerical and experimental behaviour of the selected concrete members. The experimentation shows that the calibration of the models is a crucial task, which was considered and resulted in matching the force–displacement behaviour and achieving the same maximum impact force and displacement values. Different novel and complicated Finite Element Models were comprehensively developed. The developed numerical models could precisely predict both local and global structural responses in the different reinforced concrete members. The application of the current numerical techniques can be extended to design structural members where there are no reliable practical guidelines on both national and international levels. View Full-Text
Keywords: numerical modelling; reinforced concrete members; fibre-reinforced polymer; concrete-filled steel tube; dynamic simulations numerical modelling; reinforced concrete members; fibre-reinforced polymer; concrete-filled steel tube; dynamic simulations
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MDPI and ACS Style

Tahmasebinia, F.; Zhang, L.; Park, S.; Sepasgozar, S. Numerically Evaluation of FRP-Strengthened Members under Dynamic Impact Loading. Buildings 2021, 11, 14. https://doi.org/10.3390/buildings11010014

AMA Style

Tahmasebinia F, Zhang L, Park S, Sepasgozar S. Numerically Evaluation of FRP-Strengthened Members under Dynamic Impact Loading. Buildings. 2021; 11(1):14. https://doi.org/10.3390/buildings11010014

Chicago/Turabian Style

Tahmasebinia, Faham; Zhang, Linda; Park, Sangwoo; Sepasgozar, Samad. 2021. "Numerically Evaluation of FRP-Strengthened Members under Dynamic Impact Loading" Buildings 11, no. 1: 14. https://doi.org/10.3390/buildings11010014

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