Plastic Hinge Analysis

This lecture covers the plastic hinge method for estimating inelastic deformation capacity in structures, the shortcomings of force-based design, and the analysis of moment-curvature relationships. It explains the relationship between local and global ductilities, the basic elements of displacement-based evaluation, and the computation of inelastic displacement capacity. The lecture also discusses the moment-curvature analysis, the bilinear approximation of moment-curvature relationships, and the programs used for such analysis. Additionally, it delves into the force-displacement response construction, the estimation of force capacity, yield displacement, and ultimate displacement. The plastic hinge model, its assumptions, and methods to account for shear deformations are also explored.