Post-fire Seismic Behavior of RC Columns Built with Sustainable Concrete

Demir U., Ünal G., Goksu Ç., Saribas I., İlki A.

JOURNAL OF EARTHQUAKE ENGINEERING, cilt.26, sa.13, ss.6869-6892, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26 Sayı: 13
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1080/13632469.2021.1927897
  • Dergi Adı: JOURNAL OF EARTHQUAKE ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.6869-6892
  • Anahtar Kelimeler: Column, fire, recycled aggregate, reinforced concrete, seismic, sustainability, RECYCLED AGGREGATE CONCRETE, STRUCTURAL PERFORMANCE, STRENGTH, FIRE, EXPOSURE, RAC
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

In this study, four full-scale reinforced concrete columns were built replacing 50% of natural coarse aggregates in concrete mix by recycled aggregates. Three of the columns were exposed to standard ISO-834 fire for 30, 60 or 90 minutes, while the reference specimen was not exposed. Sixty days after fire exposure, the columns were tested under constant axial load and reversed cyclic lateral displacements simulating earthquakes. Test results are evaluated in terms of lateral load capacity, ductility, stiffness and energy dissipation. In addition, an analytical study was conducted to predict the lateral load-displacement response of fire-damaged columns built with recycled aggregates.