| Title |
An Experimental Study on the Crack Width of RC Beams at the Location of Mechanical Splice Device |
| DOI |
https://doi.org/10.5659/JAIK.2023.39.12.217 |
| Keywords |
Mechanical Splice Device; Crack Width; Half Mechanical Splice; Full Mechanical Splice; Residual Deformation Amount |
| Abstract |
This study is to determine the crack width at the location where the mechanical splice device is installed on the reinforced concrete beam.
The mechanical coupling device is Company B's screw coupler. The screw was not completely fastened and artificially and unstablely joined
so that the residual deformation amount was 1.0 mm. In order to experimentally investigate this, structural experiments were conducted on
RC beams with and without mechanical joints. As a result of the experiment, it was found that a mechanical splice device with a residual
deformation amount of 1 mm could be used if the stress level was low and half mechanical splice. However, even in the case of half a
joint, it was found to exceed the allowable crack width at a location with a high stress level. In addition, even if the stress level is low, it
is judged that careful attention is needed to use it in excess of the allowable crack width even in the case of full mechanical splice. |