Find the response of the two masses of the two-story building frame shown in Fig. 5.32 under the ground displacement \(y(t)=0.2 \sin \pi t \mathrm{~m}\). Assume the equivalent stiffness of the lower and upper columns to be \(800 \mathrm{~N} / \mathrm{m}\) and \(600 \mathrm{~N} / \mathrm{m}\), respectively, and \(m_{1}=m_{2}=50 \mathrm{~kg}\).

Figure 5.32:-

Transcribed Image Text:

F2(t)- El F(t) El m2 x2(1) El m m El FIGURE 5.32 Two-story building frame.