| Title |
Effect of Disc Springs on the Dynamic Properties of L-shaped Steel Connections for Exterior Cladding Finishes |
| Authors |
이기연(Lee, Ki-Yeon) ; 문주현(Mun, Ju-Hyun) ; 양근혁(Yang, Keun-Hyeok) ; 이혜지(Lee, Hye-Ji) ; 송진규(Song, Jin-Kyu) |
| DOI |
https://doi.org/10.5659/JAIK.2026.42.3.319 |
| Keywords |
Exterior Cladding Finishes; Disc Spring; Connections; Dynamic Properties |
| Abstract |
This study evaluates the dynamic properties of L-shaped steel connections for exterior cladding finishes equipped with disc springs. The main
parameters included the number of disc springs, the stacking method, and the presence of prestressing force applied to the bolted connection.
A total of 13 specimens were prepared. Dynamic properties were assessed using natural frequency, maximum response acceleration,
amplification factor, equivalent static load, relative displacement, and damping ratio, measured from vibration table tests. The results showed
that the natural frequency of L-shaped steel connections with disc springs increased by 1.12 to 1.20 times compared to the control specimens,
while the amplification factor and relative displacement decreased by 8.55% to 29.45% and 7.12% to 29.78%, respectively. Specifically, in
connections with disc springs, the equivalent static load decreased by 10.16% to 15% when disc springs were arranged in a parallel stacking
method compared with serial and hybrid stacking. The introduction of prestressing force further reduced the equivalent static load by 3.71%
to 8.16%. These results indicate that the use of disc springs and prestressing force provides an effective structural solution for improving the
dynamic performance of L-shaped steel connections in exterior cladding finishes. |