TY - JOUR
T1 - Post-earthquake performance of a slab-column connection with punching shear reinforcement
AU - Isufi, Brisid
AU - Ramos, António Manuel Pinho
AU - Lúcio, Valter José da Guia
PY - 2020/1/2
Y1 - 2020/1/2
N2 - Brittle punching failures can occur in slab–column connections due to earthquake-induced unbalanced moments. The performance of undamaged specimens and various repair/strengthening techniques have been studied in the past. This paper investigates a less studied scenario, in which a flat slab–column connection severely damaged by an earthquake is subjected to another earthquake without undergoing repair. The performance under this special loading protocol is analysed. It is shown that the drift capacity was not significantly impaired, but both the lateral and bending stiffness were reduced. Other relevant observations regarding the post-earthquake life of slab–column connections are brought to attention.
AB - Brittle punching failures can occur in slab–column connections due to earthquake-induced unbalanced moments. The performance of undamaged specimens and various repair/strengthening techniques have been studied in the past. This paper investigates a less studied scenario, in which a flat slab–column connection severely damaged by an earthquake is subjected to another earthquake without undergoing repair. The performance under this special loading protocol is analysed. It is shown that the drift capacity was not significantly impaired, but both the lateral and bending stiffness were reduced. Other relevant observations regarding the post-earthquake life of slab–column connections are brought to attention.
U2 - 10.1080/13632469.2020.1713924
DO - 10.1080/13632469.2020.1713924
M3 - Article
JO - Journal of Earthquake Engineering
JF - Journal of Earthquake Engineering
SN - 1363-2469
ER -