Strengthening effect of externally bonded CFRP sheets on pretensioned PC beams with ruptured strands in flexure

K. Matsumoto, T. T.D. Nguyen, J. Niwa, A. Iwasaki, Y. Sato, T. Tsutsumi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents the flexural strengthening effect of CFRP sheets on prestressed concrete (PC) beams having strands ruptured at the midspan. The increase in the number of sheets resulted in the reduction of tensile stress of the remaining prestressing strands. However, the increase in the number of sheets with insufficient sheet lengths did not provide a higher flexural strength because of the debonding from the sheet ends. The increase in the sheet lengths not only prevented the latter failure but also significantly improved the beam stiffness. More importantly, the debonding of the sheets was avoided by wrapping the transverse sheets for the whole beam span.

Original languageEnglish
Title of host publicationLife-Cycle of Structural Systems
Subtitle of host publicationDesign, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
EditorsHitoshi Furuta, Dan M. Frangopol, Mitsuyoshi Akiyama
PublisherCRC Press/Balkema
Pages1283-1289
Number of pages7
ISBN (Print)9781138001206
DOIs
Publication statusPublished - 2015
Event4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014 - Tokyo, Japan
Duration: 2014 Nov 162014 Nov 19

Publication series

NameLife-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014

Other

Other4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014
CountryJapan
CityTokyo
Period14/11/1614/11/19

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

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  • Cite this

    Matsumoto, K., Nguyen, T. T. D., Niwa, J., Iwasaki, A., Sato, Y., & Tsutsumi, T. (2015). Strengthening effect of externally bonded CFRP sheets on pretensioned PC beams with ruptured strands in flexure. In H. Furuta, D. M. Frangopol, & M. Akiyama (Eds.), Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014 (pp. 1283-1289). (Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014). CRC Press/Balkema. https://doi.org/10.1201/b17618-190