STRENGTH OF SHORT SQUARE COLUMNS CONFINED WITH GFRP WRAPS | ||
| ERJ. Engineering Research Journal | ||
| Article 10, Volume 27, Issue 1, January 2004, Pages 83-90 PDF (2.45 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/erjm.2004.82614 | ||
| Author | ||
| Mohamed Safan | ||
| Faculty of Engineering, Minoufiya University, Shebin El-Kom, Egypt | ||
| Abstract | ||
| This research reports the results of an experimental investigation carried out on short noncircular columns strengthened with GFRP wraps. A total number of 45 specimens (100x100x500mm) were tested under concentric loads. The major parameters of the study were the strengthening configuration including the number of GFRP layers and extension of the composite along the column height, volume fraction of the transverse reinforcement and degree of column surface roughness. Using the hand lay-up technique, continuous layers of a woven fiberglass fabric were bonded along the column height to introduce a confining pressure, which increases the apparent concrete compressive strength and consequently the column capacity. The results indicated that significant increase in the ultimate load and ductility improvement could be achieved by proper application of GFRP wraps. | ||
| Keywords | ||
| strengthening; short columns; GFRP; polyester; fiberglass; wrapping can | ||
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