Inelastic seismic response evaluation of a shear wall structure by displacement-based approach

The displacement-based seismic design approaches are evaluated utilizing shaking-table test data of a 1:3 scaled reinforced concrete shear wall structure, provided by the International Atomic Energy Agency. The maximum inelastic responses such as the top displacement and base shear forces are estimated using the two prominent displacement-based approaches, i.e., the capacity spectrum method and the displacement coefficient method, and compared with the measured responses. For comparison purpose, conventional response spectrum analysis and nonlinear time history analysis are also performed. The results indicate that the capacity spectrum method underestimates the response of the structure in inelastic range while the displacement coefficient method yields reasonable values in most cases