friction damper; beam-to-column joints; steel structures; column loss scenario; finite element analysis
Abstract :
[en] Low-damage beam-to-column steel joints equipped with friction de-
vices have been recently prequalified for European applications within
FREEDAM and FREEDAM+ research projects. Despite their excellent seismic
performance, these joints may exhibit limited ductility in the case of column loss
scenarios. Therefore, a numerical study has been conducted to investigate the
behavior of this type of joint under column removal utilizing refined finite ele-
ment simulations. The results for the seismically prequalified configurations con-
firmed poor ductile behavior due to the premature failure of the upper T-stub
connecting the beam flange to the column flange. Therefore, a local strengthening
solution was designed to enhance the T-stub ductility without interfering with the
joint seismic performance. The effectiveness of the adopted solution was numer-
ically investigated by means of refined numerical model. The performed analyses
showed that the designed strengthening details allow for increasing the ductility
of the whole connection without modifying the flexural resistance of the joints.
Disciplines :
Civil engineering
Author, co-author :
Carlevaris, Roberto
Tartaglia, Roberto
D’Aniello, Mario
Landolfo, Raffaele
Golea, Tudor ; Université de Liège - ULiège > Urban and Environmental Engineering
Jaspart, Jean-Pierre ; Université de Liège - ULiège > Département ArGEnCo > Adéquation des structures de génie civil aux exigences de fontionnement et de performances technico-économiques
Latour, Massimo
Piluso, Vincenzo
Language :
English
Title :
Strengthening Details for Low-Damage Seismic Dissipative Beam-to-Column Joints in Case of Column Loss Scenario
Publication date :
June 2024
Event name :
11th International Conference on Behaviour of Steel Structures in Seismic Areas
