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Dynamic response and residual bearing capacity of RC columns under the actions of steel corrosion, salt-freeze cycles and impact loading: An experimental study
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DOI：10.1016/j.coldregions.2026.104972.png)
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Abstract
En 中文
• High corrosion (≥4%) siginificantly decreases impact resistance and residual bearing capacity. • Salt-freeze cycles induce linear degradation in impact resistance and residual bearing capacity • Corrosion combined with salt-freeze shows “1 + 1 > 2” effects on impact force but “1 + 1 < 2” effects on impact deformation and residual bearing capacity. • Degradation effect of salt types follows the order of NaCl + Na₂SO₄ > NaCl > Na₂SO₄. • The damage index of RC columns under environmental actions and impact loading is modelled.
Keywords:
steel corrosion
salt-freeze cycles
impact loading
residual bearing capacity
damage index
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