Seismic design of braced frame columns with and without replaceable brace modules

In concentrically braced frames (CBFs), the braces are intended to dissipate seismic energy while the beams and columns remain elastic according to capacity design. However, past studies have shown that column yielding is possible with current seismic design. In this study, nonlinear response history analyses are performed to examine the effects of column design on braced frame performance. Two connections are considered for joining the braces …