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

Table 2

Amplification factors between PGA at the building base and PGA at the free field sensor.

Sensors	Direction	Amplification factor	𝑅^2
Building A
PGA 6 versus PGA 10	X	0.81	0.92
	Y	0.55	0.82
PGA 7 versus PGA 10	X	0.83	0.92
	Y	0.54	0.82
Building B
PGA 8 versus PGA 10	X	0.89	0.93
	Y	0.45	0.88
PGA 9 versus PGA 10	X	0.90	0.93
	Y	0.48	0.87