Flexural strength of reinforced concrete beams strengthened with prestressed carbon fiber-reinforced polymer sheets - Part II

Piyong Yu, Pedro F. Silva, Antonio Nanni

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

A prototype mechanical device was develope for prestressing carbon fiber-reinforced polymer (CFRP) sheets. To investigate the feasibility of using this device, seven reinforced concrete (RC) beams were strengthened with prestressed CFRP sheets. In an accompanying paper, the main features and the application procedures for this mechanical device are discussed. In this paper theoretical and experimental results related to prestressing levels that can lead to debonding of the sheets immediately after transfer and during flexural testing are discussed together with the investigation on the increase in the flexural capacity that results from prestressing and anchoring the CFRP sheets at the beam ends with U-wraps.

Original languageEnglish (US)
Pages (from-to)11-20
Number of pages10
JournalACI Structural Journal
Volume105
Issue number1
StatePublished - Jan 1 2008

Keywords

  • Debonding
  • Fiber-reinforced polymer
  • Flexure
  • Premature
  • Prestressing
  • Strengthening

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering
  • Materials Science(all)

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