Strengthening of masonry structures using epoxy-bonded FRP laminates

Research output: Contribution to journalArticle

Abstract

The present study presents a systematic analysis for the short-term strength of masonry walls, strengthened with externally bonded fiber reinforced polymer (FRP) laminates under monotonic out-of-plane bending, in-plane bending, and in-plane shear, all combined with axial load, within the framework of modern design codes (e.g., Eurocode 6). The results, which are presented in the form of both design equations and normalized interaction diagrams, show that: (1) when out-of-plane bending response dominates, as in the case of upper story levels, where axial loads are low, the increase in bending capacity is quite high; (2) in the (rather rare) case of in-plane bending, high area fractions of reinforcement placed near the highly stressed zones give considerable strength increases (regardless of the axial load), provided that premature peeling-off of the laminates is prevented; and (3) the in-plane shear capacity of FRP-strengthened walls can be quite high, too, especially in the case of low axial loads. The results obtained from monotonic four-point bending tests on wallettes confirm the analysis of both out-of plane and in-plane response and emphasize the important role of failure through FRP shearing beneath the bond.

Original languageEnglish (US)
Pages (from-to)96-104
Number of pages9
JournalJournal of Composites for Construction
Volume2
Issue number2
DOIs
StatePublished - May 1998

ASJC Scopus subject areas

  • Ceramics and Composites
  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Strengthening of masonry structures using epoxy-bonded FRP laminates'. Together they form a unique fingerprint.

  • Cite this