Stress-strain Relation of Circular Concrete Columns Strengthened with FRP Considering Size Effect Under Monotonic Axial Loading(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2013年04期
- Page:
- 78-83
- Research Field:
- Publishing date:
Info
- Title:
- Stress-strain Relation of Circular Concrete Columns Strengthened with FRP Considering Size Effect Under Monotonic Axial Loading
- Author(s):
- WANG Zuo-hu; LIU Jing-bo; DU Xiuli
- School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture
- Keywords:
- FRP; circular concrete column; size effect; axial compressive behavior; monotonic axial loading; stress-strain relation
- PACS:
- -
- DOI:
- -
- Abstract:
- In order to study size effect on the axial compressive behavior of circular concrete columns strengthened with fiber reinforced polymer (FRP), based on the equation of modified size effect law, the ultimate strength calculation formulae of circular concrete columns strengthened with FRP were deduced, which could reflect the effect of different columns sizes. Meanwhile, the simple stressstrain model was proposed, and the comparisons of experiment results and existing model calculation results were done. The study results show that the model calculation results are coincided with the experiment results, and the model can reflect the size effect on ultimate strength.
Last Update: 2014-01-02