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Title: Monotonic and low cycle fatigue behaviour of concrete beams strengthened with textile reinforced concrete U-wrap
Authors: Gopinath, Smitha
Murthy, A Rama Chandra
Iyer, Nagesh R
Keywords: Textile reinforced concrete;Flexural strengthening;Shear strengthening;U-wrap;RC beam;Monotonic;Low cycle fatigue
Issue Date: Jun-2015
Publisher: NISCAIR-CSIR, India
Abstract: This paper presents experimental details on the effectiveness of textile reinforced concrete (TRC) as a structural strengthening material under flexure and shear. Two types of specimens, namely, plain concrete beams and reinforced concrete beams are strengthened with U-wrap configutation of TRC. Two types of fabrics having different weight per unit area are used for the investigations. Strengthened plain concrete beams are tested under three-point bending to investigate the flexural load carrying capacity, mid-point deflection and failure pattern. Further, experimental investigations are carried out on shear deficient RC beam strengthened with TRC as U-wrap under monotonic and low cycle fatigue loading. It is observed that under monotonic loading, there is about 19% increase in ultimate load carrying capacity and 852% increase in energy absorption for strengthened beam compared with un-strengthened beam. When the strengthened beam is subjected to low cycle fatigue loading, there is 20% reduction in ultimate load carrying capacity. But the ultimate deflection and failure pattern is found to be similar in both the cases.
Page(s): 331-338
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.22(3) [June 2015]

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