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Title |
Seismic Performance Assessment of Hollow Reinforced Concrete Bridge Columns using an Extended Damage Index
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DOI |
https://doi.org/10.4334/JKCI.2018.30.2.167 |
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Keywords |
내진성능 ; 중공 ; 교각 ; 확장된 손상지수 ; 해석기법 seismic performance ; hollow ; bridge columns ; extended damage index ; numerical method |
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Abstract |
The goal of this study was to assess the seismic performance of hollow reinforced concrete bridge columns and to develop performance-based seismic design criteria. Two circular and two rectangular hollow reinforced concrete bridge columns were tested under a constant axial load and a cyclically reversed horizontal load. A computer program, RCAHEST (Reinforced Concrete Analysis in Higher Evaluation System Technology), was used for the analysis of reinforced concrete structures. This paper defines an extended damage index based on the predicted hysteretic behavior of a hollow reinforced concrete bridge columns. The extended damage indices provide a means of numerically quantifying the damage to cast-in-place and precast hollow reinforced concrete bridge columns sustained under earthquake loading. The proposed numerical method gives a realistic prediction of seismic performance throughout the loading cycles for several hollow column specimens investigated herein.
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