A Parameter Sensitivity Analysis of the Effect of Rebar Corrosion on the Stress Field in the Surrounding Concrete
Rebar corrosion results in a change in the stress field in the surrounding concrete, which in turn accelerates the deterioration of the concrete structure. In addition to the protective layer, the compressive stress under which concrete is prestressed also affects the effect of corrosion-induced reb...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/9858506 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849683560808579072 |
|---|---|
| author | Fangyuan Li Wenya Ye |
| author_facet | Fangyuan Li Wenya Ye |
| author_sort | Fangyuan Li |
| collection | DOAJ |
| description | Rebar corrosion results in a change in the stress field in the surrounding concrete, which in turn accelerates the deterioration of the concrete structure. In addition to the protective layer, the compressive stress under which concrete is prestressed also affects the effect of corrosion-induced rebar expansion on the stress field in the concrete. The present study simulates the effect of corrosion-induced rebar expansion on the stress field in the concrete using the finite element method (FEM) by applying a virtual radial displacement to the product of corrosion-induced rebar expansion. Based on an analysis of the effect of multiple rebars on the stress field in ordinary concrete, stress distribution in the protective layer of the concrete is determined. Afterward, the locations where there is damage to the surface concrete caused by rebar corrosion are determined. After verifying the feasibility of the FEM analysis, the effect of corrosion-induced ordinary rebar expansion in a typical prestressed concrete segment is determined by analyzing the characteristics of corrosion-induced rebar expansion occurring in various prestressed concrete specimens. |
| format | Article |
| id | doaj-art-d4d47ca0d9ae4e0bba1c2d7fa0b5b175 |
| institution | DOAJ |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-d4d47ca0d9ae4e0bba1c2d7fa0b5b1752025-08-20T03:23:47ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/98585069858506A Parameter Sensitivity Analysis of the Effect of Rebar Corrosion on the Stress Field in the Surrounding ConcreteFangyuan Li0Wenya Ye1Department of Bridge Engineering, College of Civil Engineering, Tongji University, Shanghai 20009, ChinaNingbo Highway Administration Bureau, Ningbo 315040, ChinaRebar corrosion results in a change in the stress field in the surrounding concrete, which in turn accelerates the deterioration of the concrete structure. In addition to the protective layer, the compressive stress under which concrete is prestressed also affects the effect of corrosion-induced rebar expansion on the stress field in the concrete. The present study simulates the effect of corrosion-induced rebar expansion on the stress field in the concrete using the finite element method (FEM) by applying a virtual radial displacement to the product of corrosion-induced rebar expansion. Based on an analysis of the effect of multiple rebars on the stress field in ordinary concrete, stress distribution in the protective layer of the concrete is determined. Afterward, the locations where there is damage to the surface concrete caused by rebar corrosion are determined. After verifying the feasibility of the FEM analysis, the effect of corrosion-induced ordinary rebar expansion in a typical prestressed concrete segment is determined by analyzing the characteristics of corrosion-induced rebar expansion occurring in various prestressed concrete specimens.http://dx.doi.org/10.1155/2017/9858506 |
| spellingShingle | Fangyuan Li Wenya Ye A Parameter Sensitivity Analysis of the Effect of Rebar Corrosion on the Stress Field in the Surrounding Concrete Advances in Materials Science and Engineering |
| title | A Parameter Sensitivity Analysis of the Effect of Rebar Corrosion on the Stress Field in the Surrounding Concrete |
| title_full | A Parameter Sensitivity Analysis of the Effect of Rebar Corrosion on the Stress Field in the Surrounding Concrete |
| title_fullStr | A Parameter Sensitivity Analysis of the Effect of Rebar Corrosion on the Stress Field in the Surrounding Concrete |
| title_full_unstemmed | A Parameter Sensitivity Analysis of the Effect of Rebar Corrosion on the Stress Field in the Surrounding Concrete |
| title_short | A Parameter Sensitivity Analysis of the Effect of Rebar Corrosion on the Stress Field in the Surrounding Concrete |
| title_sort | parameter sensitivity analysis of the effect of rebar corrosion on the stress field in the surrounding concrete |
| url | http://dx.doi.org/10.1155/2017/9858506 |
| work_keys_str_mv | AT fangyuanli aparametersensitivityanalysisoftheeffectofrebarcorrosiononthestressfieldinthesurroundingconcrete AT wenyaye aparametersensitivityanalysisoftheeffectofrebarcorrosiononthestressfieldinthesurroundingconcrete AT fangyuanli parametersensitivityanalysisoftheeffectofrebarcorrosiononthestressfieldinthesurroundingconcrete AT wenyaye parametersensitivityanalysisoftheeffectofrebarcorrosiononthestressfieldinthesurroundingconcrete |