Sustainable Frames for Seismic Resistance to Captive Column Defects
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Bibliographic Details
| Author(s): |
C. Jayaguru
K. Subramanian |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Sustainable Infrastructure - Environment Friendly, Safe and Resource Efficient, Bangkok, Thailand, 9-11 September 2009 | ||||
| Published in: | IABSE Symposium Bangkok 2009 | ||||
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| Page(s): | 1-9 | ||||
| Total no. of pages: | 7 | ||||
| Year: | 2009 | ||||
| DOI: | 10.2749/222137809796205584 | ||||
| Abstract: |
Reinforced concrete constructions with partial masonry infill face serious earthquake shear damages in columns due to captive-column effect. An experimental program is carried out with one-third scale, two-bay two-story laboratory models having partial infill in the bottom story. Glass-fibre reinforced polymer sheets are wrapped around the columns at critical points for adequate ductility. Two frames namely, a control specimen and a retrofitted specimen are tested under quasi-static cyclic load to failure. The control specimen showed a brittle shear failure in the bottom story columns due to the induced captive-column effect while the retrofitted specimen showed a more ductile failure without any brittle damages. Results demonstrated the behavior with respect to strength and stiffness characteristics. The aim is, therefore to contribute for developing a sustainable structure to overcome the seismic failure due to captive-column defects. |
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| Keywords: |
reinforced concrete retrofitting partial infill GFRP sheets captive columns
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