Experimental study on shear behavior of reinforced concrete members fully wrapped with large rupture strain FRP composites This paper presents an experimental study on the shear behavior of reinforced concrete (RC) members fully wrapped with polyethylene terephthalate (PET) fiber reinforced polymer (FRP) composites, which are a new type of FRP material characterized with a much larger rupture strain (LRS) compared to conventional FRPs (i.e., made of carbon, glass, and aramid fibers). A total of ten PET fully-wrapped RC beams, which were designed to fail in shear and with different shear-span to effectivedepth ratios, transverse reinforcement ratios and shear strengthening ratios, were tested under four-point bending loads. The overall load-deflection responses and the shear deformation of the beams as well as the strain development of the transverse steel reinforcement and the FRP jackets were carefully observed. Based upon the extensive strain measurements, the shear contributions by concrete, FRP and transverse reinforcement are differentiated. It was found that the use of PET FRP composites as the jacket material of RC members can shift the mode of shear failure from a brittle one to an ideal ductile one while the ultimate state of the members is no longer caused by FRP fracture. In order to efficiently predict the shear strength of RC members wrapped by LRS FRPs, the effective strain in LRS FRPs and the degradation of concrete at the peak member shear strength must be appropriately considered. No.Have all the authors contributed to the study and approved the final version?All authors must have contributed to the study, seen the final draft of the manuscript, and accept responsibility for its contents. It is unethical to list someone as a coauthor who does not want to be associated with the study and who has never seen the manuscript.Yes.Was an earlier version of the paper previously considered and declined by ASCE?Declined manuscripts are sent through the review process again. If your manuscript has been submitted to us before under a different title, please provide that title in the space provided below. It is our policy to inform an editor that a manuscript has been previously reviewed, even when it has been reviewed by a different Division, Institute, or Council within ASCE.No. composites, which are a new type of FRP material characterized with a much larger rupture strain (LRS) 26 compared to conventional FRPs (i.e., made of carbon, glass, and aramid fibers). A total of ten PET fully-27 wrapped RC beams, which were designed to fail in shear and with different shear-span to effective-depth 28 ratios, transverse reinforcement ratios and shear strengthening ratios, were tested under four-point 29 bending loads. The overall load-deflection responses and the shear deformation of the beams as well as 30 the strain development of the transverse steel reinforcement and the FRP jackets were carefully observed. 31Based upon the extensive strain measurements, the shear contributions by concrete, FRP and transverse ...
