| Title |
Structural Behavior of Precast Concrete Wall Panels with Horizontal Connection using Threaded Rebar |
| DOI |
https://doi.org/10.5659/JAIK.2022.38.5.215 |
| Keywords |
Precast concrete wall panel; Bolted joint; Thread engagement length; Shear strength of thread; Thread stripping |
| Abstract |
This study aims to investigate the structural performance of the dry joint of a PC wall panel with the threaded connecting rebars fastened by
nuts. In previous experiments where non-standard nuts were used, it was found that the thread shear failure of nuts occurred due to the lack
of strength and engagement length. New specimens were manufactured using F10T high tension nuts instead of the SM45C hex nuts and
coupler pieces. The SD500 D25 and D29 connecting rebars were used with metric thread M24 and M30 respectively. Three fully reversed
cyclic loading tests were carried out with a gradually increased increment in drift ratio in each step under constant axial force. The
experimental results indicated that the peak strength of a specimen depends on the yield strength or the thread shear strength of the rebar.
The strength of the nut thread was stronger than the rebar thread and the proper engagement length of a nut would result in a tensile failure
of the connecting rebar rather than thread shear failure. |