Estimating Residual Seismic Displacements for Bilinear Oscillators

An important consideration in the design of structures for seismic effects is residual displacement. However, few design specifications have residual displacement criteria. As performance-based design gains popularity, the need arises to estimate residual displacements in structures from strong ground shaking. A total of 16,896 nonlinear analyses of single-degree-of-freedom bilinear oscillators were performed to estimate residual displacement ratios. Comparisons were made to previously developed models for estimating residual displacement demand. (C) 2016 American Society of Civil Engineers.