Flexural Behavior of Reinforced Concrete Beams Strengthened with FFRP(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2016年03期
- Page:
- 104-109
- Research Field:
- Publishing date:
Info
- Title:
- Flexural Behavior of Reinforced Concrete Beams Strengthened with FFRP
- Author(s):
- XU Qi; HUANG Liang
- College of Civil Engineering, Hunan University
- Keywords:
- FFRP; reinforcement; flexural behavior; reinforced concrete beam
- PACS:
- -
- DOI:
- -
- Abstract:
- In order to study flexural behavior of reinforced concrete beams strengthened with flax fiber reinforced plastic (FFRP), tensile performance tests of FFRP specimens with four kinds of natural fibers and three kinds of thicknesses were conducted. Based on the test results, fourpoint flexural loading tests on three beams considering FFRP layer as the parameter were carried out. Failure modes of specimens, loaddeflection curves and ultimate bearing capacity were investigated. According to the common failure modes of reinforced concrete beams strengthened with FFRP, the corresponding bending capacity formula was derived. The results show that FFRP made of the 300 g·m-2 rain flax possesses stable tensile properties. Compared with ordinary reinforced concrete beams, ultimate bearing capacity and ductility of beams strengthened with FFRP increase to different extents. The calculation values of bending capacity agree well with the test results, and the results can provide basis for design of this kind of reinforcement beam.
Last Update: 2016-06-01