A study on load-deflection behavior of two-span continuous concrete beams reinforced with GFRP and steel bars

UNSAL I., TOKGOZ S., ÇAĞATAY İ. H., DÜNDAR C.

STRUCTURAL ENGINEERING AND MECHANICS, cilt.63, sa.5, ss.629-637, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 63 Sayı: 5
  • Basım Tarihi: 2017
  • Doi Numarası: 10.12989/sem.2017.63.5.629
  • Dergi Adı: STRUCTURAL ENGINEERING AND MECHANICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.629-637
  • Anahtar Kelimeler: concrete, glass fiber reinforced polymer (GFRP), continuous beam, load-deflection, stress-strain, FLEXURAL PERFORMANCE, FRP BARS, STRENGTH, PREDICTION, ELEMENTS
  • Çukurova Üniversitesi Adresli: Evet

Özet

Continuous concrete beams are commonly used as structural members in the reinforced concrete constructions. The use of fiber reinforced polymer (FRP) bars provide attractive solutions for these structures particularly for gaining corrosion resistance. This paper presents experimental results of eight two-span continuous concrete beams; two of them reinforced with pure glass fiber reinforced polymer (GFRP) bars and six of them reinforced with combinations of GFRP and steel bars. The continuous beams were tested under monotonically applied loading condition. The experimental load-deflection behavior and failure mode of the continuous beams were examined. In addition, the continuous beams were analyzed with a numerical method to predict the load-deflection curves and to compare them with the experimental results. Results show that there is a good agreement between the experimental and the theoretical load-deflection curves of continuous beams reinforced with pure GFRP bars and combinations of GFRP and steel bars.