Energy Dissipation Capacity of Reinforced Concrete Columns under Cyclic Displacements
ACI STRUCTURAL JOURNAL, cilt.109, sa.4, ss.531-540, 2012 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 109 Sayı: 4
- Basım Tarihi: 2012
- Dergi Adı: ACI STRUCTURAL JOURNAL
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.531-540
- Anahtar Kelimeler: columns, effective damping, energy dissipation capacity, loading path, CUMULATIVE SEISMIC DAMAGE, CIRCULAR BRIDGE COLUMNS, MODELS
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
The energy dissipation capacity of reinforced concrete (RC) columns is investigated under inelastic cyclic displacements. Experimental data are obtained from 20 column specimens tested under constant-amplitude displacement cycles and from three column specimens tested under variable-amplitude displacement cycles. The effect of failure mode, displacement ductility, material properties, and detailing on the energy dissipation capacity of columns is investigated first under constant-amplitude loading. A simple model is developed for predicting the cyclic energy dissipation capacity under constant-amplitude inelastic displacement cycles. Then, an analytical procedure is introduced for estimating the energy dissipation under variable-amplitude displacement cycles by using the energy dissipation capacity, under constant-amplitude displacements. The proposed procedure is verified with the test results.