Strength of Rc Beams with an Frp-Strengthened Web Opening

Xue Fei Nie, Shi Shun Zhang, Jin Guang Teng

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Web openings often need to be created in existing reinforced concrete (RC) beams for the passage of utility ducts and/or pipes. Such web openings lead to significant decreases in the load-carrying capacities of the beams due to the reduced cross-sectional area and/or severing of some of the existing stirrups. Therefore, an externally bonded fiber-reinforced polymer (FRP) strengthening system is often applied around the web opening to ensure the safety of the weakened beam. A number of existing experimental and numerical studies have provided useful information on the structural behavior of RC beams with an FRP-strengthened web opening. However, it is desirable to develop a simple strength model for RC beams with an FRP-strengthened web opening, if only the strength of such beams is of concern. This paper proposes a strength model for RC beams with an FRP-strengthened web opening for engineering use. Test results are compared with the predicted results using the proposed strength model to verify the accuracy of the model. A good agreement between the predicted and test results is obtained and therefore the proposed strength model is recommended for engineering use.

Original languageEnglish
Title of host publication10th International Conference on FRP Composites in Civil Engineering - Proceedings of CICE 2020/2021
EditorsAlper Ilki, Medine Ispir, Pinar Inci
PublisherSpringer Science and Business Media Deutschland GmbH
Pages1577-1586
Number of pages10
ISBN (Print)9783030881658
DOIs
Publication statusPublished - 2022
Event10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2021 - Virtual, Online
Duration: 8 Dec 202110 Dec 2021

Publication series

NameLecture Notes in Civil Engineering
Volume198 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference10th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2021
CityVirtual, Online
Period8/12/2110/12/21

Keywords

  • Fiber-reinforced polymer (FRP) strengthening
  • FRP confinement
  • Reinforced concrete (RC) beam
  • Strength model
  • Web opening

ASJC Scopus subject areas

  • Civil and Structural Engineering

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