A design-oriented combined model (7 MPa to 190 MPa) for FRP-confined circular short columns

Zehra Canan Girgin*, Konuralp Girgin

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19 Atıf (Scopus)


This study addresses a design oriented combined model to predict the ultimate strengths and ultimate strains in an extensive range of unconfined strength (7 to 190 MPa) for the axially loaded fiber-reinforced polymer (FRP)-wrapped circular short columns. Modified Hoek-Brown strength criterion, which was previously extended to FRP-confined concrete from 7 to 108 MPa, is revisited and verified. An empirical strength model beyond 108 MPa encompassing ultra-high strength concrete (UHSC) and ultra-high performance concrete (UHPC) data, as well as empirical strain models, are defined to accomplish the design oriented combined model. This article especially focuses on the verification of the proposed strain models. The assessment performances of those models for carbon FRP (CFRP) and glass FRP (GFRP) confinement are compared with specific models in the current literature. Strength and strain predictions for UHSC and UHPC are integrated into the design oriented combined model as well. The assessments on this model agree with the experimental results in high accuracy.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)1905-1917
Sayfa sayısı13
Basın numarası10
Yayın durumuYayınlandı - 2015

Bibliyografik not

Publisher Copyright:
� 2015 by the authors; licensee MDPI, Basel, Switzerland.

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