Slab-column connections in buildings need to withstand earthquakes without breaking. Researchers tested different connections without extra support bars and found that repeated shaking weakens them, especially if the slabs are lightly reinforced. They created a model to predict how these connections will hold up during earthquakes, considering different ways the load moves between the slab and column. The model accurately predicted the strength and flexibility of the connections tested in the study. They also expanded the model to include how these connections behave when shaken multiple times.