Innovative Seismic Retrofitting of RC Columns Using Advanced Composites

Dionysis Bournas, Thanasis Triantafillou

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review


The paper presents the results of a comprehensive experimental program aiming at providing a fundamental understanding of the behavior of reinforced concrete (RC) columns under simulated seismic loading, strengthened in flexure, of crucial importance in capacity design, with different types and configurations of near-surface mounted (NSM) reinforcing materials. The role of various parameters, such as carbon or glass fiber-reinforced polymers (FRP) versus stainless steel, configuration and amount of NSM reinforcement, confinement via local jacketing and type of bonding agent, is examined, by comparison of the lateral load versus displacement response characteristics. The results demonstrate that NSM FRP or stainless steel reinforcement is a viable solution towards enhancing the flexural resistance of RC columns subjected to seismic loads, especially when the retrofitting scheme combines epoxy-bonded NSM bars with local confining jackets, provided in this study with textile-reinforced mortars (TRM).

Original languageEnglish (US)
Title of host publicationSimplified Analyses with Case Studies and Examples
Number of pages11
StatePublished - 2009

Publication series

NameGeotechnical, Geological and Earthquake Engineering
ISSN (Print)1573-6059
ISSN (Electronic)1872-4671

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology


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