| Title |
Finite Element Analysis on the Effect of Splice Sleeve Diameter and Grout Strength |
| Authors |
이상섭(Lee, Sang-Sup) ; 부윤섭(Boo, Yoon-Seob) ; 신상민(Shin, Sang-Min) |
| DOI |
https://doi.org/10.5659/JAIK.2023.39.7.227 |
| Keywords |
Diameter of splice sleeve; Strength of grout; Rebar splice; Mechanical behavior; Finite element analysis |
| Abstract |
In this study, a finite element model and analysis results are presented to investigate the effect of the sleeve diameter and the strength of
the grout on the behavior of the cylindrical half-grouted splice sleeve. The half-grouted splice sleeve, consisting of a threaded end and a
grouted sleeve end, is a mechanical connector that can be made by milling instead of casting. The grade of rebar is SD600 D22, and the
material of the sleeve is SM45C. The development length of rebar inside the sleeve is 7.5d (d: rebar diameter), which is the same in all
analysis models. Additionally, true stress and ductile damage conditions are used to simulate the nonlinear behavior and fracture of rebars.
The structural behavior of the spliced rebar system for four sleeve diameters (cover thickness rebar: about 3, 6, 12, 18 mm) and two types
of grout compressive strength (60, 100 MPa) is calculated using finite element analysis software Abaqus/Explicit. As a result of the analysis,
the effect of sleeve diameter size on the failure mode, the yield length of the rebar, and the yield of the sleeve cross-section is significant,
but the effect of grout strength on the structural behavior of the splice sleeve is very small. |