Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/19038
Title: Cyclic compressive behavior of concrete confined with large rupture strain FRP composites
Authors: Bai, YL
Dai, JG 
Teng, JG 
Keywords: Axial compression
Concrete
Confinement
Cyclic loading
FRP
Large rupture strain (LRS)
Issue Date: 2014
Source: Journal of composites for construction, 2014, v. 18, no. 1, 04013025 How to cite?
Journal: Journal of Composites for Construction 
Abstract: Fiber-reinforced polymer (FRP) composites with a large rupture strain (LRS) (i.e., having an ultimate tensile strain larger than 5%) are promising jacketing materials for the seismic retrofit of reinforced concrete (RC) columns. These LRS FRPs are environmentally friendly as their reinforcing fibers can be made from recycled plastics [e.g., polyethylene terephthalate (PET) bottles]; as a result, they are also cheaper than conventional FRPs [i.e., carbon FRP (CFRP), glass GFRP (GFRP), and aramid FRP (AFRP)]. This paper presents the first-ever study on the behavior and modeling of LRS FRP-confined concrete under cyclic axial compression. Experimental results are first presented to examine both the envelope compressive stress-strain curve and the cumulative effect of loading cycles. A cyclic stress-strain model is then proposed and shown to provide close predictions of the test results. The proposed cyclic stress-strain model is formed by combining an existing monotonic stress-strain model for predicting the envelope curve with an existing cyclic stress-strain model for predicting the unloading and reloading paths. This cyclic stress-strain model can be employed in modeling the behavior of LRS FRP-jacketed RC columns subjected to seismic loading.
URI: http://hdl.handle.net/10397/19038
ISSN: 1090-0268
DOI: 10.1061/(ASCE)CC.1943-5614.0000386
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