| Title |
Seismic Performance Evaluation Test of PC Beam-Column Connections with Steel Box Connector System |
| Authors |
김재영(Kim, Jae-Young) ; 김용남(Kim, Yong-Nam) ; 김범진(Kim, Beom-Jin) ; 김승직(Kim, Sung-Jig) ; 이기학(Lee, Kihak) |
| DOI |
https://doi.org/10.5659/JAIK.2024.40.12.243 |
| Keywords |
Precast Concrete; SBC System; Energy Dissipation Ability; Ductility; Equivalence |
| Abstract |
Recently, the precast concrete (PC) method has been widely used in various types of construction, such as underground parking lots, logistics
warehouses, and apartment buildings, due to its many advantages over the traditional reinforced concrete (RC) method. However, it does not
satisfy the splicing and anchorage requirements of KDS 41 17 00 section 9.3. Therefore, it is necessary to develop a mechanical system that
can meet structural standards and ensure stability. In this study, a new mechanical joint called Steel Box Connector ? SBC was proposed
and evaluated through tensile and cyclic loading tests, to overcome the limitation of lap splice and easy to install in precast concrete (PC)
production. In the tensile test, the washer joint surface with greater thickness exhibited a maximum load value of 465.40kN, demonstrating
the effectiveness of internal and external washers and nut fastening in tensile resistance. In addition, in the cyclic loading test, the SBC T-2
specimen showed a maximum load of 457.11kN, demonstrating superior structural performance compared to the SBC T-1 and GPC specimens
by 0.3% and 6.18%, respectively. Also, the SBC system exhibited similar failure modes and strength enhancement effects compared to
conventional PC joint systems. Therefore, the use of the developed SBC system is considered to significantly contribute to achieving energy
dissipation capacity, improved ductility, and equivalence with conventional PC joints. |