New formula predicts buckling strength of elliptic roofs under uniform load.
The article discusses how elliptic paraboloidal roofs buckle under a uniform load on a rectangular plan. The researchers analyzed the roofs as single layers with pin-support at the edges. They looked at different types of buckling and came up with formulas to calculate the buckling loads. One formula is a simple way to estimate elastic buckling loads, while the other formula relates buckling loads to column strength.