Abstract
To design prefabricated concrete columns with grouted sleeves (PCC-GSs), the development and damage process of the plastic hinge (PH) regions for the PCC-GSs need to be clarified. In this study, a finite element analysis (FEA) method for the PCC-GSs was verified through experimental results, including the failure modes, load–displacement responses, and physical plastic hinge lengths (PHLs). Consequently, a series of finite element models (FEMs) were constructed. The effects of parameters such as grouted sleeve (GS) height, axial force ratio, and shear span ratio on the PHL for the PCC-GSs were systematically analysed under cyclic loading. Finally, with the discussion of the existing empirical models for the equivalent PHL (Lp), a simplified calculation model of Lp for PCC-GSs was proposed and evaluated. The results indicate the following. (1) The PH of PCC-GSs may move up or down, and its PH development mode is significantly different from that of the CIP RC column. (2) The axial force ratio n, shear span ratio z/d, longitudinal reinforcement ratio ρs, rebar yield strength fy, and GS height LGS all have a significant influence on the PH region of PCC-GSs, especially LGS. (3) The proposed model is more suitable to calculate the PHL for PCC-GSs with considering the effects of LGS, n, z/d, ρs, fy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
