Unified Shear-Flexural Model for Vibration Control of Buildings Using Passive Dynamic Absorbers

Table 7

Periods and participating mass ratios of the fixed-base building: CSF model vs. 3D FEM [55].

Mode	Period (s)				Participating mass ratio (%)
	xz plane		yz plane		xz plane		yz plane
	CSF	3D FEM	CSF	3D FEM	CSF	3D FEM	CSF	3D FEM
1	3.65	3.65	3.44	3.44	81.03	77.26	67.94	66.01
2	1.22	1.25	0.89	0.98	8.98	8.86	13.17	10.62
3	0.73	0.75	0.38	0.48	3.22	2.76	5.71	3.57