Abstract
This paper presents the experimental results of axially loaded stub columns of slender steel hollow square section(SHS) strengthened with carbon fiber reinforced polymers(CFRP) sheets. 6 specimens were fabricated and the main parameters were: width-thickness ratio(b/t) and CFRP retrofitting. From the tests, it was observed that two sides would typically buckle outward and the other two sides would buckle inward. A maximum increase of 33% was achieved in axial-load capacity. Also, stiffness and ductility index(DI) were compared between unretrofitted specimens and retrofitted specimens. In the last section, a prediction formula of the ultimate strength developed using the experimental results is presented.
| Translated title of the contribution | Concentrated Axial Loading Test for Slender Square Hollow Section Retrofitted by Carbon Fiber Reinforced Polymer Sheets(CFRP Sheets) |
|---|---|
| Original language | Korean |
| Pages (from-to) | 735-742 |
| Number of pages | 8 |
| Journal | 한국강구조학회 논문집 |
| Volume | 24 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2012 |