Shaking Table Testing of a Scaled Nuclear Power Plant Structure with Base Isolation

Table 1

Similarity law of the NPP model.

Type	Physical quantity	Dimension	Similar coefficient
Geometry size	Size l	(L)	Sl = 1/20
Material properties	Elastic modulus E	(FL^−2)	SE = 1/4
	Density ρ	(FL^−4T^2)	Sρ = 1
	Poisson’s ratio μ	—	Sμ = 1
	Strain ε	—	Sε = 1
	Stress σ	(FL^−2)	Sσ = SESε = 1/4
	Equivalent mass density ρe	(FL^−4T^2)	Sρe = 1
Dynamic indicators	Time T	(T)
	Frequency ω	(T^−1)	Sω = 1/ST = 10
	Damping ratio ζ	—	Sζ = 1
	Acceleration amplitude a	(LT^−2)	Sa = SE/(SLSρε) = 5
	Stiffness K	(FL^−1)	SK = SE Sl = 0.0125
	Mass m	(FL^−1T^2)	Sm = SρεS^3l = 1.25E − 4