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Shear Performance of Embedded Through Section (ETS) Over Near Surface Mounting (NSM) Method of RC Beams

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Proceedings of SECON'19 (SECON 2019)

Part of the book series: Lecture Notes in Civil Engineering ((LNCE,volume 46))

Abstract

Reinforced concrete structures often have to face modifications in performance during their service life mainly because of ageing and exposure to aggressive environment. Near Surface Mounting (NSM) and Embedded Through-Section (ETS) are two effective techniques for the shear strengthening of reinforced concrete (RC) beams. NSM technique involves cutting of a series of shallow grooves in the concrete cover of the structures and inserting steel/FRP bars into them and ETS technique consists of drilling holes across the full depth of the beam cross-section and inserting steel/FRP bars into them, thereby bonding the bars with the surrounding concrete using appropriate bonding material. This paper presents the results of experimental investigations on RC beams strengthened in shear using CFRP bars in Embedded through section (ETS) and Near Surface Mounting (NSM) methods. Three point bending tests are conducted to find the effect of ETS/NSM bar spacing and ETS/NSM bar orientation on the load carrying capacity of RC beams. The experimental results confirms the effectiveness of ETS and NSM methods and a comparison is made in terms of shear strengthening ratio, load carrying capacity of RC beams.

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References

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Authors and Affiliations

  1. Cochin University of Science and Technology, Cochin, India

    Preetha Prabhakaran

  2. Division of Civil Engineering, Cochin University of Science and Technology, Kalamassery, India

    Glory Joseph

Authors
  1. Preetha Prabhakaran
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  2. Glory Joseph
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Corresponding author

Correspondence to Preetha Prabhakaran .

Editor information

Editors and Affiliations

  1. Indian Institute of Technology Guwahati, Guwahati, Assam, India

    Kaustubh Dasgupta

  2. NIT Calicut, Kozhikode, Kerala, India

    A. S. Sajith

  3. Department of Civil Engineering, Federal Institute of Science And Technology (FISAT), Angamaly, Kerala, India

    G. Unni Kartha

  4. Department of Civil Engineering, Federal Institute of Science And Technology (FISAT), Angamaly, Kerala, India

    Asha Joseph

  5. Department of Civil Engineering, Federal Institute of Science And Technology (FISAT), Angamaly, Kerala, India

    P. E. Kavitha

  6. Department of Civil Engineering, NSS College of Engineering, Akathethara, Kerala, India

    K.I. Praseeda

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Prabhakaran, P., Joseph, G. (2020). Shear Performance of Embedded Through Section (ETS) Over Near Surface Mounting (NSM) Method of RC Beams. In: Dasgupta, K., Sajith, A., Unni Kartha, G., Joseph, A., Kavitha, P., Praseeda, K. (eds) Proceedings of SECON'19. SECON 2019. Lecture Notes in Civil Engineering, vol 46. Springer, Cham. https://doi.org/10.1007/978-3-030-26365-2_84

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  • DOI: https://doi.org/10.1007/978-3-030-26365-2_84

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-26364-5

  • Online ISBN: 978-3-030-26365-2

  • eBook Packages: EngineeringEngineering (R0)

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