RETROFITTING SQUARE RC COLUMNS USING FRP AND PRECAST CONCRETE SEGMENTS
Abstract eng: This study evaluates different methods of strengthening existing square concrete columns under eccentric loading. Twelve reinforced square concrete columns were cast. Four columns were kept square as reference, four columns were modified with round corners and wrapped with three layers of CFRP, and four were circularised by circular segments and wrapped with three layers of CFRP. Specimens from each group were tested under concentric, eccentric (15 or 25 mm) and flexural bending. Results from the study showed that segmental circular concrete covers considerably reduce stress concentration at the corners. FRP wrapped columns with circular segments showed significant increase in load-carrying capacity compared to columns with only round corners.
Contributors:
Publisher:
Japan Concrete Institute, Tokyo
Conference Title:
Conference Title:
First International Conference on Concrete Sustainability
Conference Venue:
Tokyo (JP)
Conference Dates:
2013-05-27 / 2013-05-29
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-10-29, last modified 2014-11-18
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