In structural engineering, what are second-order effects?

Second-order effects are those caused by drift or deflection. When a beam deflects or a column drifts, the applied loads will likely become eccentric since the nodes or the member have moved. This causes additional stress to the member. read more

Second-order effects are those caused by drift or deflection. When a beam deflects or a column drifts, the applied loads will likely become eccentric since the nodes or the member have moved. This causes additional stress to the member. It is much quicker, and less accurate, to not consider second order effects. read more

Second Order Effects. Last Revised: 11/04/2014. When an axial compressive force simultaneously occurs with bending, it creates additional bending in the member, causing the internal bending moments to be larger than are predicted using typical structural analysis on the undeflected structure. read more

Second order effects take into acount the material shapes and properties in order to get lateral (sway) deflections for the frame. The sway produces an eccentricity to the vertical line load on the beam which generates additional axial forces in the columns and moments between the beam and columns. read more