| Title |
Performance Evaluation of Perimeter Reinforced T-bar Type Suspended Ceiling with Steel-Panel using Shaking Table Test |
| Authors |
이재섭(Lee, Jae-Sub) ; 정담이(Jung, Dam-I) ; 이두용(Lee, Doo-Yong) ; 조봉호(Cho, Bong-Ho) |
| DOI |
https://doi.org/10.5659/JAIK.2020.36.10.167 |
| Keywords |
Non-structural element; Suspended ceiling; Shaking table test; Seismic performance; Perimeter clip |
| Abstract |
In Korea, interest in the seismic design of non-structural elements was stimulated by the 2016 Gyeong-ju 2017 Po-hang earthquake. Among
them, the suspended ceiling is a non-structural element that causes injury to person, most ceiling systems used in Korea do not have seismic
details and do not meet the current seismic design standards. There is no standard for seismic design of the suspended ceiling in Korea, and
the ASTM E580/E580M can be used for the seismic design. The ASTM E580/E580M introduces a seismic design method for SDC C, which
performs design with molding width and end clearance, and SDC D, which performs design with braces and end fixing method, in ceiling
systems for acoustical tile and lay-in Panels. In the present study, shaking table tests were performed on two types of steel-panel T-bar
ceiling systems designed according to ASTM E580/E580M. The first specimen meets the frame end molding width requirements of SDC C
detail, the second one meets the perimeter clip requirement of SDC D detail in ASCE7. The failure modes of steel-panel T-bar ceiling
system with anti-falling clips, and the degrees of damage incurred by the ceiling system were evaluated. The failure modes were also
compared with the results of non-seismic ceiling tests presented in the previous study, which details currently being constructed in Korea.
Test results of seismic designed ceilings show that all the specimens meet the life safety level in Korea standard KDS 41 17 00. |