Modified Failure Criterion to Predict Ultimate Strength of Circular Columns Confined by Different Materials

Girgin Z. C.

ACI STRUCTURAL JOURNAL, cilt.106, sa.6, ss.800-809, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 106 Sayı: 6
  • Basım Tarihi: 2009
  • Dergi Adı: ACI STRUCTURAL JOURNAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.800-809
  • Anahtar Kelimeler: confinement, fiber-reinforced polymers, reinforced concrete, sheet, strength, tube, REINFORCED-CONCRETE COLUMNS, COMPOSITE JACKETED CONCRETE, STRESS-STRAIN MODEL, COMPRESSIVE BEHAVIOR, TRIAXIAL COMPRESSION, DESIGN EQUATIONS, TENSILE-STRENGTH, FIBER COMPOSITES, FRP, DUCTILITY
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

This study addresses the extension of a failure criterion developed for rock data to small or near full-size circular concrete columns confined by different materials. Initially, a wide range database on small-scale specimens confined by fiber-reinforced polymer (FRP) sheets or tubes and analytical studies were evaluated to predict the ultimate compressive strength. Then, the reinforced concrete (RC) short-columns retrofitted with FRP jacket were examined through available data. The research further covers middle- or near full-scale columns confined by FRP composites and steel reinforcement. All of these estimations were conducted within a unified approach to the failure criterion. Thus, the ultimate compressive strength for different confining materials can be predicted easily and systematically.