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Post-earthquake Performance of a Slab-Column Connection with Punching Shear Reinforcement
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.
Post-earthquake Performance of a Slab-Column Connection with Punching Shear Reinforcement
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.
Post-earthquake Performance of a Slab-Column Connection with Punching Shear Reinforcement
Isufi, Brisid (author) / Ramos, António Pinho (author) / Lúcio, Válter (author)
Journal of Earthquake Engineering ; 26 ; 1171-1193
2022-02-17
23 pages
Article (Journal)
Electronic Resource
English
Cyclic Loading , Drift , Flat Slab , Post-Earthquake , Studs , Punching
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