Behavior of Large-Scale Rectangular Columns Confined with FRP Composites
This paper focuses on axially loaded, large-scale rectangular RC columns confined with fiber-reinforced polymer (FRP) wrapping. Experimental tests are conducted to obtain the stress-strain response and ultimate load for 3 field-size columns having different aspect ratios and/or corner radii. Effective transverse FRP failure strain and the effect of increasing confining action on the stress-strain behavior are examined. Existing strength models, the majority of which were developed for small-scale specimens, are applied to predict the structural response. Since some of them fail to adequately characterize the test data and others are complex, requiring significant calculation, a simple design-oriented model is developed. The new model is based on the confinement effectiveness coefficient, an aspect ratio coefficient, and a corner radius coefficient. It accurately predicts the axial ultimate strength of the large-scale columns at hand and, when applied to the small-scale columns studied by other investigators, produces reasonable results.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/10900268
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Supplemental Notes:
- Abstract reprinted with permission from ASCE
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Authors:
- Toutanji, Houssam A
- Han, M
- Gilbert, J
- Matthys, S
- Publication Date: 2010-1
Language
- English
Media Info
- Media Type: Print
- Features: Figures; Photos; References; Tables;
- Pagination: pp 62-71
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Serial:
- Journal of Composites for Construction
- Volume: 14
- Issue Number: 1
- Publisher: American Society of Civil Engineers
- ISSN: 1090-0268
- EISSN: 1943-5614
- Serial URL: http://ascelibrary.org/journal/jccof2
Subject/Index Terms
- TRT Terms: Axial loads; Columns; Confined concrete; Fiber reinforced plastics; Jacketing (Strengthening); Structural supports
- Subject Areas: Bridges and other structures; Highways; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 01152175
- Record Type: Publication
- Files: TRIS
- Created Date: Mar 16 2010 6:12AM