Experimental and Numerical Study on the Earthquake Damage of Spherical Bearings for Chinese High-Speed Railway Bridge

Table 2

Similitude parameters and similarity ratios of the shaking table test [24].

Property	Physical quantity	Similarity relation	Ratio
Material		SE	1
	Stress	Sσ = SE	1
	Density	Sρ = Sσ/SaSl	4
Load	Point load	SP = SES^2l	1/144
	Line load	Sω = SESl	1/12
	Area load	Sq = SE	1
Geometric		Sl	1/12
	Displacement	Sd = Sl	1/12
	Area	SA = S^2l	1/144
Dynamic		Sa	3
	Mass	Sm = SρS^3l	4/1728
	Period	ST = Sl (SρS^−1E)^0.5	1/6

( indicates a base parameter).