Corrosion effect on compatibility between prestressing strand and concrete
|
|
|||||||||||
Bibliographic Details
| Author(s): |
Lei Wang
(Changsha University of Science & Technology, Changsha, China)
Lizhao Dai (Changsha University of Science & Technology, Changsha, China) Yafei Ma (Changsha University of Science & Technology, Changsha, China) Xuhui Zhang (Changsha University of Science & Technology, Changsha, China) Jianren Zhang (Changsha University of Science & Technology, Changsha, China) |
||||
|---|---|---|---|---|---|
| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Structural Engineering: Providing Solutions to Global Challenges, Geneva, Switzerland, September 2015 | ||||
| Published in: | IABSE Conference Geneva 2015 | ||||
|
|||||
| Page(s): | 559-565 | ||||
| Total no. of pages: | 7 | ||||
| Year: | 2015 | ||||
| DOI: | 10.2749/222137815818357593 | ||||
| Abstract: |
This present study investigated effects of the strain compatibility between strands and concrete on the flexural behavior of corroded post-tensioned beams. First, eight post-tensioned beams with bonded strand were designed and subjected to accelerated corrosion to different strand corrosion degrees, and the load deflection response and the ultimate strength were discussed based on the flexural test. Next, a compatibility coefficient was introduced to quantify the inconsistent compatibility between corroded strand and concrete. The influence of strand corrosion on the compatibility coefficient was discussed. Finally, an analytical model was proposed to predict the ultimate strength of the post-tensioned beams with corroded strand. The model was verified with different experimental results. |
||||
| Keywords: |
prestressed concrete corrosion bond performance flexural strength compatibility
|
||||