An Experimental Study on Evaluation of Structural Performance on Corroded Reinforced Concrete Columns

철근이 부식된 철근콘크리트 기둥의 구조성능 평가에 대한 실험적 연구

This paper presents an experimental study on evaluation of structural performance on corroded reinforced concrete columns under only axial load, combined axial load and lateral load. This test was carried on the twenty-six reinforced concrete columns with $150\times150\times800$mm size subjected to combined axial load and lateral load. Effects of key variables such as the corrosion level, the number of hoop, the corrosion of hoop are studied in this program. The results of this study show that the capacity of column axial force was decreased as corrosion level was increased, especially, rapid development was shown after 10% corrosion level and the maximum moment capacity of column was shown at corrosion level 1.2%, while rapid decrease was shown after 4.3% corrosion level. Also we found that influence of corrosion was decreased to number of tie bar was increased.