Find the normal modes of the two-story building shown in Fig. 5.32 when \(m_{1}=3 m\), \(m_{2}=m, k_{1}=3 k\), and \(k_{2}=k\), where \(k_{1}\) and \(k_{2}\) represent the total equivalent stiffnesses of the lower and upper columns, respectively.

Transcribed Image Text:

F2(t) El F(t) El m x2(1) my El h El h FIGURE 5.32 Two-story building frame.