CFRP strengthened square hollow section subject to pure torsion

Jarrod Douglas Sharrock, Chao Wu, Xiao Ling Zhao

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Carbon fiber reinforced polymer (CFRP) has great potential for strengthening aging steel struc-tures, compared to traditional methods of attaching steel plates which are often bulky, heavy and difficult to fix. CFRP provides advanced structural properties with light weight and high tensile characteristics, making
it an attractive option to perform the aforementioned role. This paper presents a comprehensive experimental program to investigate the torsional behaviour of strengthened steel square hollow sections (SHS) and strength-ened aluminium SHS with various thicknesses. From previous research, a wrapping angle of 45° is the most efficient in terms of increasing the maximum torsional capacity, and was adopted for the tests. It was found that sections with larger depth to thickness ratio (D/t ratio) had a greater percentage increase in maximum torsional capacity. Moreover, it was observed that sections with lower elastic moduli compared with steel will show more improvement in maximum torsional capacity for a given thickness.
Original languageEnglish
Title of host publicationTubular Structures XV
Subtitle of host publication Proceedings of the 15th International Symposium on Tubular Structures
EditorsEduardo Batista, Pedro Vellasco, Luciano Lima
Place of PublicationLeiden The Netherlands
PublisherCRC Press
Pages661 - 668
Number of pages8
ISBN (Print)9781138028371
DOIs
Publication statusPublished - 2015
EventInternational Symposium on Tubular Structures 2015 - Rio de Janeiro Brazil, Rio, Brazil
Duration: 27 May 201529 May 2015

Conference

ConferenceInternational Symposium on Tubular Structures 2015
CountryBrazil
City Rio
Period27/05/1529/05/15

Cite this

Sharrock, J. D., Wu, C., & Zhao, X. L. (2015). CFRP strengthened square hollow section subject to pure torsion. In E. Batista, P. Vellasco, & L. Lima (Eds.), Tubular Structures XV: Proceedings of the 15th International Symposium on Tubular Structures (pp. 661 - 668). Leiden The Netherlands: CRC Press. https://doi.org/10.1201/b18410-96
Sharrock, Jarrod Douglas ; Wu, Chao ; Zhao, Xiao Ling. / CFRP strengthened square hollow section subject to pure torsion. Tubular Structures XV: Proceedings of the 15th International Symposium on Tubular Structures. editor / Eduardo Batista ; Pedro Vellasco ; Luciano Lima. Leiden The Netherlands : CRC Press, 2015. pp. 661 - 668
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abstract = "Carbon fiber reinforced polymer (CFRP) has great potential for strengthening aging steel struc-tures, compared to traditional methods of attaching steel plates which are often bulky, heavy and difficult to fix. CFRP provides advanced structural properties with light weight and high tensile characteristics, makingit an attractive option to perform the aforementioned role. This paper presents a comprehensive experimental program to investigate the torsional behaviour of strengthened steel square hollow sections (SHS) and strength-ened aluminium SHS with various thicknesses. From previous research, a wrapping angle of 45° is the most efficient in terms of increasing the maximum torsional capacity, and was adopted for the tests. It was found that sections with larger depth to thickness ratio (D/t ratio) had a greater percentage increase in maximum torsional capacity. Moreover, it was observed that sections with lower elastic moduli compared with steel will show more improvement in maximum torsional capacity for a given thickness.",
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Sharrock, JD, Wu, C & Zhao, XL 2015, CFRP strengthened square hollow section subject to pure torsion. in E Batista, P Vellasco & L Lima (eds), Tubular Structures XV: Proceedings of the 15th International Symposium on Tubular Structures. CRC Press, Leiden The Netherlands, pp. 661 - 668, International Symposium on Tubular Structures 2015, Rio, Brazil, 27/05/15. https://doi.org/10.1201/b18410-96

CFRP strengthened square hollow section subject to pure torsion. / Sharrock, Jarrod Douglas; Wu, Chao; Zhao, Xiao Ling.

Tubular Structures XV: Proceedings of the 15th International Symposium on Tubular Structures. ed. / Eduardo Batista; Pedro Vellasco; Luciano Lima. Leiden The Netherlands : CRC Press, 2015. p. 661 - 668.

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

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AB - Carbon fiber reinforced polymer (CFRP) has great potential for strengthening aging steel struc-tures, compared to traditional methods of attaching steel plates which are often bulky, heavy and difficult to fix. CFRP provides advanced structural properties with light weight and high tensile characteristics, makingit an attractive option to perform the aforementioned role. This paper presents a comprehensive experimental program to investigate the torsional behaviour of strengthened steel square hollow sections (SHS) and strength-ened aluminium SHS with various thicknesses. From previous research, a wrapping angle of 45° is the most efficient in terms of increasing the maximum torsional capacity, and was adopted for the tests. It was found that sections with larger depth to thickness ratio (D/t ratio) had a greater percentage increase in maximum torsional capacity. Moreover, it was observed that sections with lower elastic moduli compared with steel will show more improvement in maximum torsional capacity for a given thickness.

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Sharrock JD, Wu C, Zhao XL. CFRP strengthened square hollow section subject to pure torsion. In Batista E, Vellasco P, Lima L, editors, Tubular Structures XV: Proceedings of the 15th International Symposium on Tubular Structures. Leiden The Netherlands: CRC Press. 2015. p. 661 - 668 https://doi.org/10.1201/b18410-96