原文传递
Bond Performance between Slightly Corroded Steel Bar and Concrete after Exposure to High Temperature
| 题名： | Bond Performance between Slightly Corroded Steel Bar and Concrete after Exposure to High Temperature |
| 其他题名： | Abaneh,A.,and M.Sheban.2011."Impact of mechanical loading on the corrosion of steel reinforcement in concrete structures."Mater.Struct.44(6):1123-1137.https://doi.org/10.1617/s11527-010-9688-3. |
| 正文语种： | 英文 |
| 作者： | Ou Yang |
| 关键词： | Fire behavior;Pull-out test;Aging structure;Empirical model |
| 摘要： | Bond-slip characteristics of slightly corroded (less than 2％ mass loss) reinforcing steel bars embedded in concrete were investigated with pull-out tests conducted after exposure to high temperature and subsequent cooling. Twenty-five scenarios consisting of five corrosion levels (0.0％, 0.5％, 1.0％, 1.5％, and 2.0％ corrosion loss) and five exposed temperatures (20℃, 200℃, 400℃, 600℃, and 800℃) were tested. The results indicate that the slight corrosion of the reinforcement not only affects the bond performance of concrete and steel bars but also influences their reaction to elevated temperature before the exposure temperature exceeds 400℃. The effect of slight corrosion on bond-mechanics behavior was eliminated by the dramatic decrease in concrete strength and significantly different thermal expansion between concrete and steel as the exposure temperature reached 600℃. |
| 出版年： | 2018 |
| 论文唯一标识： | P-26Y2018V144N11012 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/(ASCE)ST.1943-541X.0002217 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 144 |
| 期： | 11 |
| 页码： | 152-161 |
相关文献
- Investigation of Corroded Bond-Slip Effects for Corroded RC Columns
- Bond-Slip Models for Corroded RC Members Exposed to Fire
- Structural Response and Residual Capacity of S700 High-Strength Steel CHS Columns after Exposure to Elevated Temperatures
- Residual Flexural Capacity and Performance Assessment of Corroded Reinforced Concrete Beams
- Hysteretic Bond Stress-Slip Response of Deformed Bars in Concrete under Uniaxial Lateral Pressure
- Fire-Resistance Mechanism and Residual Bearing Capacity of Prestressed Concrete Beams after Fire Exposure
检索历史
应用推荐
