FRP strengthened SHS beam-column connection under monotonic and large-deformation cyclic loading

Article

Tafsirojjaman, T., Fawzia, Sabrina, Thambiratnam, David P. and Zhao, Xiao-Ling. 2021. "FRP strengthened SHS beam-column connection under monotonic and large-deformation cyclic loading." Thin-Walled Structures. 161, pp. 1-12. https://doi.org/10.1016/j.tws.2021.107518
Article Title

FRP strengthened SHS beam-column connection under monotonic and large-deformation cyclic loading

ERA Journal ID3825
Article CategoryArticle
AuthorsTafsirojjaman, T. (Author), Fawzia, Sabrina (Author), Thambiratnam, David P. (Author) and Zhao, Xiao-Ling (Author)
Journal TitleThin-Walled Structures
Journal Citation161, pp. 1-12
Article Number107518
Number of Pages12
Year2021
PublisherElsevier
Place of PublicationUnited Kingdom
ISSN0263-8231
1879-3223
Digital Object Identifier (DOI)https://doi.org/10.1016/j.tws.2021.107518
Web Address (URL)https://www.sciencedirect.com/science/article/abs/pii/S026382312100077X
Abstract

Many civil applications use square hollow sections (SHSs) as members in beam-column connections which can be vulnerable under cyclic loading. Cyclic loadings from earthquakes, wind, waves and currents affect onshore and offshore civil infrastructure. In addition, these beam-column connections can become structurally inadequate through incremental service loads, design/fabrication errors and material property degradation over time. Due to this, it will be necessary to strengthen SHS beam-column connections to improve their performance under sustained monotonic and cyclic loadings. This paper treats the performance of SHS beam-column connections strengthened with externally bonded carbon fibre reinforced polymer (CFRP) and glass fibre reinforced polymer (GFRP). Experimental investigations have been conducted on the bare, CFRP and GFRP strengthened SHS connections under monotonic and cyclic loading. Results show that under cyclic loading both CFRP and GFRP strengthened SHS beam-column connections exhibit improved ultimate moment capacity, moment degradation behaviour, secant stiffness, energy dissipation capacity and plastic hinge behaviour compared to their bare counterparts. Under monotonic loading, both types of strengthened connections show higher moment capacity, secant stiffness and ductility. In addition, CFRP strengthening enhances the ultimate strength, while GFRP strengthening enhances ductility.

KeywordsSquare hollow sections (SHS) beam-column connections; Carbon fibre reinforced polymer (CFRP); Glass fibre reinforced polymer (GFRP); Strengthening; Monotonic loading; Cyclic loading
ANZSRC Field of Research 2020400509. Structural dynamics
400506. Earthquake engineering
400510. Structural engineering
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Byline AffiliationsCentre for Future Materials
Queensland University of Technology
University of New South Wales
Institution of OriginUniversity of Southern Queensland
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Output-only modal testing and monitoring of civil engineering structures: instrumentation and test management
Nguyen, A., Chan, T. H. T., Thambiratnam, D. P., Kodikara, K. T. L., Le, N. T. and Jamali, S.. 2018. "Output-only modal testing and monitoring of civil engineering structures: instrumentation and test management." Chan, Tommy and Mahini, Saeed (ed.) 8th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII 2017): Structural Health Monitoring in Real-World Application. Brisbane, Australia 05 - 08 Dec 2017 Red Hook, NY, USA.
Vibration-based dual-criteria approach for damage detection in arch bridges
Jayasundara, Nirmani, Thambiratnam, David, Chan, Tommy and Nguyen, Andy. 2019. "Vibration-based dual-criteria approach for damage detection in arch bridges." Structural Health Monitoring: an international journal. 18 (5-6), pp. 2004-2019. https://doi.org/10.1177/1475921718810011
A new method for locating and quantifying damage in beams from static deflection changes
Le, N. T., Thambiratnam, D. P., Nguyen, A. and Chan, T. H. T. 2019. "A new method for locating and quantifying damage in beams from static deflection changes." Engineering Structures. 180, pp. 779-792. https://doi.org/10.1016/j.engstruct.2018.11.071
Sandwich assemblies of composites square hollow sections and thin-walled panels in compression
Xie, Lei, Qi, Yujun, Bai, Yu, Qui, Chengyu, Wang Hao, Fang, Hai and Zhao, Xiao-Ling. 2019. "Sandwich assemblies of composites square hollow sections and thin-walled panels in compression ." Thin-Walled Structures. 145. https://doi.org/10.1016/j.tws.2019.106412
Model updating of real structures with ambient vibration data
Kodikara, K. A. T. L., Chan, T. H. T., Nguyen, T. and Thambiratnam, D. P.. 2016. "Model updating of real structures with ambient vibration data." Journal of Civil Structural Health Monitoring. 6 (3), pp. 329-341. https://doi.org/10.1007/s13349-016-0178-3
Development of a cost-effective and flexible vibration DAQ system for long-term continuous structural health monitoring
Nguyen, Theanh, Chan, Tommy H. T., Thambiratnam, David P. and King, Les. 2015. "Development of a cost-effective and flexible vibration DAQ system for long-term continuous structural health monitoring." Mechanical Systems and Signal Processing. 64-65, pp. 313-324. https://doi.org/10.1016/j.ymssp.2015.04.003
Synergic identification of prestress force and moving load on prestressed concrete beam based on virtual distortion method
Xiang, Ziru, Chan, Tommy H. T., Thambiratnam, David P. and Nguyen, Theanh. 2016. "Synergic identification of prestress force and moving load on prestressed concrete beam based on virtual distortion method." Smart Structures and Systems. 17 (6), pp. 917-933. https://doi.org/10.12989/sss.2016.17.6.917
Structural Deterioration Detection Using Enhanced Autoregressive Residuals
Monavari, Benyamin, Chan, Tommy H. T., Nguyen, Andy and Thambiratnam, David P.. 2018. "Structural Deterioration Detection Using Enhanced Autoregressive Residuals." International Journal of Structural Stability and Dynamics. 18 (12), pp. 1-19. https://doi.org/10.1142/S0219455418501602
Model updating incorporating measured response uncertainties and confidence levels of tuning parameters
Kodikara, K.A. Tharindu L., Chan, Tommy H.T., Nguyen, Andy and Thambiratnam, David P.. 2016. "Model updating incorporating measured response uncertainties and confidence levels of tuning parameters." International Journal of Lifecycle Performance Engineering. 2 (1/2), pp. 61-78. https://doi.org/10.1504/IJLCPE.2016.082712
Prestress evaluation in prestressed concrete plate-like structures
Pathirage, Thisara S., Chan, Tommy H. T., Thambiratnam, David P., Nguyen, Andy and Moragaspitiya, H. N. P.. 2018. "Prestress evaluation in prestressed concrete plate-like structures." International Journal of Lifecycle Performance Engineering. 2 (3/4), pp. 127-143. https://doi.org/10.1504/IJLCPE.2018.094855
Damage identification in a complex truss structure using modal characteristics correlation method and sensitivity-weighted search space
Nguyen, Khac-Duy, Chan, Tommy H. T., Thambiratnam, David P. and Nguyen, Andy. 2019. "Damage identification in a complex truss structure using modal characteristics correlation method and sensitivity-weighted search space." Structural Health Monitoring: an international journal. 18 (1), pp. 49-65. https://doi.org/10.1177/1475921718809471
Reliability-based load carrying capacity assessment of bridges using structural health monitoring and nonlinear analysis
Jamali, Shojaeddin, Chan, Tommy H. T., Nguyen, Andy and Thambiratnam, David P.. 2019. "Reliability-based load carrying capacity assessment of bridges using structural health monitoring and nonlinear analysis." Structural Health Monitoring: an international journal. 18 (1), pp. 20-34. https://doi.org/10.1177/1475921718808462
Deterioration assessment of buildings using an improved hybrid model updating approach and long-term health monitoring data
Nguyen, Andy, Kodikara, K. A. Tharindu Lakshitha, Chan, Tommy H. T. and Thambiratnam, David P.. 2019. "Deterioration assessment of buildings using an improved hybrid model updating approach and long-term health monitoring data." Structural Health Monitoring: an international journal. 18 (1), pp. 5-19. https://doi.org/10.1177/1475921718799984
Vibration characteristics and damage detection in a suspension bridge
Wickramasinghe, Wasanthi R., Thambiratnam, David P., Chan, Tommy H. T. and Nguyen, Theanh. 2016. "Vibration characteristics and damage detection in a suspension bridge." Journal of Sound and Vibration. 375, pp. 254-274. https://doi.org/10.1016/j.jsv.2016.04.025
Capacity Estimation of Beam-Like Structures Using Substructural Method
Jamali, Shojaeddin, Chan, Tommy H. T., Koo, Ki-Young, Nguyen, Andy and Thambiratnam, David P.. 2018. "Capacity Estimation of Beam-Like Structures Using Substructural Method." International Journal of Structural Stability and Dynamics. 18 (12), pp. 1-17. https://doi.org/10.1142/S0219455418501626
Method development of damage detection in asymmetric buildings
Wang, Yi, Thambiratnam, David P., Chan, Tommy H.T. and Nguyen, Andy. 2018. "Method development of damage detection in asymmetric buildings." Journal of Sound and Vibration. 413, pp. 41-56. https://doi.org/10.1016/j.jsv.2017.10.015
Prestress and excitation force identification in a prestressed concrete box–girder bridge
Xiang, Ziru, Chan, Tommy H. T., Thambiratnam, David P. and Nguyen, Andy. 2017. "Prestress and excitation force identification in a prestressed concrete box–girder bridge." Computers and Concrete. 20 (5), pp. 617-625. https://doi.org/10.12989/cac.2017.20.5.617
Toward effective structural identification of medium-rise building structures
Nguyen, A., Kodikara, K. A. T. L., Chan, T. H. T. and Thambiratnam, D. P.. 2018. "Toward effective structural identification of medium-rise building structures." Journal of Civil Structural Health Monitoring. 8 (1), pp. 63-75. https://doi.org/10.1007/s13349-017-0259-y
Modelling techniques for structural evaluation for bridge assessment
Jamali, Shojaeddin, Chan, Tommy H. T., Nguyen, Andy and Thambiratnam, David P.. 2018. "Modelling techniques for structural evaluation for bridge assessment." Journal of Civil Structural Health Monitoring. 8 (2), pp. 271-283. https://doi.org/10.1007/s13349-018-0269-4
Damage detection in asymmetric buildings using vibration-based techniques
Wang, Y., Thambiratnam, D. P., Chan, T. H. T. and Nguyen, A.. 2018. "Damage detection in asymmetric buildings using vibration-based techniques." Structural Control and Health Monitoring. 25 (5), pp. 1-19. https://doi.org/10.1002/stc.2148
Response of tall buildings with symmetric setbacks under blast loading
Jayatilake, I. N., Dias, W. P. S., Jayasinghe, M. T. R. and Thambiratnam, D. P.. 2010. "Response of tall buildings with symmetric setbacks under blast loading." Journal of the National Science Foundation of Sri Lanka. 38 (2), pp. 115-123. https://doi.org/10.4038/jnsfsr.v38i2.2043