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http://dx.doi.org/10.5345/JKIBC.2019.19.6.495

Fatigue Behavior of Concrete Beam Using CFRP Rebar  

Zhang, Pei-Yun (Department of Civil Engineering, yanbian University)
Kim, Okk-Yue (Department of Architectural Engineering, Chungbuk National University)
Cui, Xian (Department of Civil Engineering, yanbian University)
Publication Information
Journal of the Korea Institute of Building Construction / v.19, no.6, 2019 , pp. 495-501 More about this Journal
Abstract
Recently, research has been carried out into the use of carbon fiber reinforced polymer (CFRP), which has good tensile strength and corrosion resistance, as an alternative to rebar. But as of yet, the research into fatigue failure of CFRP is insufficient. In this paper, an analysis was performed of the mechanical behavior and failure patterns of CFRP reinforced concrete beams according to static and cyclic loads, in order to evaluate the safety and validity of CFRP rebar as an alternative material for rebar. The cyclic load ranged from 10 % to 70% of the ultimate load, and was loaded at a speed of 3Hz using a sine wave in the form of a three-point loading method. Through the static load test, the maximum load or stiffness of the beam was found to increase remarkably with the increase of the reinforcement, but the fatigue test showed that the number of repetitions decreased and the amount of deflection increased with the increase of the reinforcement.
Keywords
cfrp bar; fatigue behavior; crack; strengthening;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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