| 本文已被：浏览次 下载次 |
码上扫一扫！ |
|
|
|
| Influence of reinforcement arrangements on concrete cover cracking due to corrosion |
|
CHENG Xudong, SU Qiaozhi, XIANG Enze, LIANG Xiaocen, WANG Zidong, ZHANG Rulin, HUANG Sining
|
|
(College of Pipeline and Civil Engineering in China University of Petroleum (East China), Qingdao 266580, China)
|
| Abstract: |
| Steel corrosion is one of the main causes for the deterioration of concrete structures. A 2D diffusion-mechanical model was established. The non-uniform corrosion expansion induced by chloride ingress was regarded as the displacement load through the finite element software, to simulate the mechanical effect of corrosion expansion on surrounding concretes.Based on this model, the influence of different reinforcement arrangements on the corrosion-induced cover cracking was investigated. The results show that different reinforcement arrangements will cause different cracking paths, and the reinforcement arrangements with fewer quantities and larger diameters can not only delay the crack initiation and through time, but also reduce the maximum crack width and section area loss ratio on the surface of the steel bar. |
| Key words: reinforcement arrangement steel corrosion cracking paths crack width section area loss ratio of steel bar |
|
|