Abstract
This paper presents an experimental study of behaviour of FRP-strengthened concrete-filled steel tubular members subjected to compression, pure bending or combined compression and bending. The main parameters varied in the test are: (1) sectional types: circular and square; (2) the number of FRP layers and fibre directions of FRP (uni-directional and bi-directional); (3) steel ratio of stub columns; (4) slenderness ratio. The test results indicates that the FRP jackets can enhance the load-bearing capacity and axial strain at the peak load for circular columns effectively, whereas the enhancement was less significant for square columns. As for the beams and beam-columns, it seems the bi-directional FRP jackets can enhance the load-bearing capacity more evidently than the uni-directional FRP jackets.
| Original language | English |
|---|---|
| Pages (from-to) | 18-21 |
| Number of pages | 4 |
| Journal | Journal of Harbin Institute of Technology |
| Volume | 41 |
| Issue number | SUPPL. 2 |
| Publication status | Published - Oct 2009 |
Keywords
- Beam-columns
- Beams
- Concrete-filled steel tubes
- FRP
- Load-carrying capacity
- Stub columns