Evaluation of Seismic Response Trends from Long-Term Monitoring of Two Instrumented RC Buildings Including Soil-Structure Interaction

Figure 17

Modal damping ratios of building A for flexible base case: (a) 1st mode, (b) 2nd mode, (c) 3rd mode versus X-direction PRA of sensor 3; (d) 1st mode, (e) 2nd mode, and (f) 3rd mode versus Y-direction PRA of sensor 3.

(a)

(b)

(c)

(d)

(e)

(f)