Abstract: Results of a study are presented in which the performance of code‐designed fixed‐base and base‐isolated concrete frames are compared. The purpose of the investigation is to compare in a quantitative manner the relative ...

Abstract: The seismic performance of fixed‐base and base‐isolated concentrically braced and special moment‐resisting steel frames are determined. The fixed‐base frames are designed in accordance with the 1990 Structural Engineers ...