Effect of shear span-depth ratio on behavior of RC beams shear-strengthened with various FRP wrapping configurations

W. W. Li; Christopher K.Y. Leung

Effect of shear span-depth ratio on behavior of RC beams shear-strengthened with various FRP wrapping configurations

W. W. Li^*, Christopher K.Y. Leung

^*Corresponding author for this work

Department of Civil and Environmental Engineering

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

1 Citation (Scopus)

Abstract

The shear span/depth ratio is known to affect the behavior of reinforced concrete (RC) beams. However, for RC beams shear-strengthened with fiber-reinforced polymer (FRP), due to insufficient understanding of its effect, the shear span/depth ratio is not considered in existing design guidelines. This paper focuses on the effect of shear span/depth ratio on the behavior of RC beams shear-strengthened in full-wrapping and U-wrapping CFRP configurations. In total, twelve strengthened beams and six normal beams are tested with shear span/depth ratios from 1.0 to 3.5. The experimental results indicate that the shear span/depth ratio can significantly affect the shear behavior of strengthened RC beams, but in different ways for the two FRP strengthening configurations, especially in the FRP shear contribution and distribution of FRP strain along a critical shear crack. Furthermore, the authors’ experimental results, as well as test results from the literature, are compared to predictions from various design guidelines. For both full-wrapping and U-wrapping configurations, the results show the same trend for our tests and those from the literature.

Original language	English
Title of host publication	Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016
Editors	J.G. Dai, J.G. Teng
Publisher	Department of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University
Pages	378-383
Number of pages	6
ISBN (Electronic)	9789881448026
Publication status	Published - 2016
Event	8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016 - Hong Kong, China Duration: 14 Dec 2016 → 16 Dec 2016

Publication series

Name	Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016

Conference

Conference	8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016
Country/Territory	China
City	Hong Kong
Period	14/12/16 → 16/12/16

Bibliographical note

Publisher Copyright:
Copyright © 2016 Department of Civil and Environmental Engineering & Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 4 Quality Education
SDG 11 Sustainable Cities and Communities

Keywords

Design guideline
Fiber-reinforced polymer (FRP)
Reinforced concrete (RC) beam
Shear span/depth ratio
Shear-strengthening

Cite this

Li, W. W., & Leung, C. K. Y. (2016). Effect of shear span-depth ratio on behavior of RC beams shear-strengthened with various FRP wrapping configurations. In J. G. Dai, & J. G. Teng (Eds.), Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016 (pp. 378-383). (Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016). Department of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University.

Li, W. W. ; Leung, Christopher K.Y. / Effect of shear span-depth ratio on behavior of RC beams shear-strengthened with various FRP wrapping configurations. Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016. editor / J.G. Dai ; J.G. Teng. Department of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University, 2016. pp. 378-383 (Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016).

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title = "Effect of shear span-depth ratio on behavior of RC beams shear-strengthened with various FRP wrapping configurations",

abstract = "The shear span/depth ratio is known to affect the behavior of reinforced concrete (RC) beams. However, for RC beams shear-strengthened with fiber-reinforced polymer (FRP), due to insufficient understanding of its effect, the shear span/depth ratio is not considered in existing design guidelines. This paper focuses on the effect of shear span/depth ratio on the behavior of RC beams shear-strengthened in full-wrapping and U-wrapping CFRP configurations. In total, twelve strengthened beams and six normal beams are tested with shear span/depth ratios from 1.0 to 3.5. The experimental results indicate that the shear span/depth ratio can significantly affect the shear behavior of strengthened RC beams, but in different ways for the two FRP strengthening configurations, especially in the FRP shear contribution and distribution of FRP strain along a critical shear crack. Furthermore, the authors{\textquoteright} experimental results, as well as test results from the literature, are compared to predictions from various design guidelines. For both full-wrapping and U-wrapping configurations, the results show the same trend for our tests and those from the literature.",

keywords = "Design guideline, Fiber-reinforced polymer (FRP), Reinforced concrete (RC) beam, Shear span/depth ratio, Shear-strengthening",

author = "Li, \{W. W.\} and Leung, \{Christopher K.Y.\}",

note = "Publisher Copyright: Copyright {\textcopyright} 2016 Department of Civil and Environmental Engineering \& Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University.; 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016 ; Conference date: 14-12-2016 Through 16-12-2016",

year = "2016",

language = "English",

series = "Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016",

publisher = "Department of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University",

pages = "378--383",

editor = "J.G. Dai and J.G. Teng",

booktitle = "Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016",

}

Li, WW & Leung, CKY 2016, Effect of shear span-depth ratio on behavior of RC beams shear-strengthened with various FRP wrapping configurations. in JG Dai & JG Teng (eds), Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016. Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016, Department of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University, pp. 378-383, 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016, Hong Kong, China, 14/12/16.

Effect of shear span-depth ratio on behavior of RC beams shear-strengthened with various FRP wrapping configurations. / Li, W. W.; Leung, Christopher K.Y.
Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016. ed. / J.G. Dai; J.G. Teng. Department of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University, 2016. p. 378-383 (Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016).

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

TY - GEN

T1 - Effect of shear span-depth ratio on behavior of RC beams shear-strengthened with various FRP wrapping configurations

AU - Li, W. W.

AU - Leung, Christopher K.Y.

PY - 2016

Y1 - 2016

N2 - The shear span/depth ratio is known to affect the behavior of reinforced concrete (RC) beams. However, for RC beams shear-strengthened with fiber-reinforced polymer (FRP), due to insufficient understanding of its effect, the shear span/depth ratio is not considered in existing design guidelines. This paper focuses on the effect of shear span/depth ratio on the behavior of RC beams shear-strengthened in full-wrapping and U-wrapping CFRP configurations. In total, twelve strengthened beams and six normal beams are tested with shear span/depth ratios from 1.0 to 3.5. The experimental results indicate that the shear span/depth ratio can significantly affect the shear behavior of strengthened RC beams, but in different ways for the two FRP strengthening configurations, especially in the FRP shear contribution and distribution of FRP strain along a critical shear crack. Furthermore, the authors’ experimental results, as well as test results from the literature, are compared to predictions from various design guidelines. For both full-wrapping and U-wrapping configurations, the results show the same trend for our tests and those from the literature.

AB - The shear span/depth ratio is known to affect the behavior of reinforced concrete (RC) beams. However, for RC beams shear-strengthened with fiber-reinforced polymer (FRP), due to insufficient understanding of its effect, the shear span/depth ratio is not considered in existing design guidelines. This paper focuses on the effect of shear span/depth ratio on the behavior of RC beams shear-strengthened in full-wrapping and U-wrapping CFRP configurations. In total, twelve strengthened beams and six normal beams are tested with shear span/depth ratios from 1.0 to 3.5. The experimental results indicate that the shear span/depth ratio can significantly affect the shear behavior of strengthened RC beams, but in different ways for the two FRP strengthening configurations, especially in the FRP shear contribution and distribution of FRP strain along a critical shear crack. Furthermore, the authors’ experimental results, as well as test results from the literature, are compared to predictions from various design guidelines. For both full-wrapping and U-wrapping configurations, the results show the same trend for our tests and those from the literature.

KW - Design guideline

KW - Fiber-reinforced polymer (FRP)

KW - Reinforced concrete (RC) beam

KW - Shear span/depth ratio

KW - Shear-strengthening

UR - https://www.scopus.com/pages/publications/85049889166

M3 - Conference Paper published in a book

AN - SCOPUS:85049889166

T3 - Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016

SP - 378

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BT - Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016

A2 - Dai, J.G.

A2 - Teng, J.G.

PB - Department of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University

T2 - 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016

Y2 - 14 December 2016 through 16 December 2016

ER -

Li WW, Leung CKY. Effect of shear span-depth ratio on behavior of RC beams shear-strengthened with various FRP wrapping configurations. In Dai JG, Teng JG, editors, Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016. Department of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University. 2016. p. 378-383. (Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016).

Effect of shear span-depth ratio on behavior of RC beams shear-strengthened with various FRP wrapping configurations

Abstract

Publication series

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Bibliographical note

UN SDGs

Keywords

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